scholarly journals Respons Tanaman Bawang Merah terhadap Pemupukan Fosfat pada Beberapa Tingkat Kesuburan Lahan (Status P-Tanah)

2013 ◽  
Vol 22 (2) ◽  
pp. 130 ◽  
Author(s):  
N Sumarni ◽  
R Rosliani ◽  
R S Basuki ◽  
Yusdar Hilman
Keyword(s):  
Soil Fertility ◽  
Response Curve ◽  
Dry Weight ◽  
Optimal Dosage ◽  
Soil P ◽  
Optimum Dosage ◽  
Split Plot ◽  
P Fertilizer ◽  
Bulb Yield ◽  
Plot Design

ABSTRAK. Pemupukan sebaiknya didasarkan pada kebutuhan tanaman akan unsur hara dan kandungan hara dalam tanah, agar diperoleh hasil yang optimal. Tujuan penelitian ialah untuk mendapatkan dosis optimal pupuk P pada dua varietas bawang merah pada beberapa tingkat kesuburan tanah (status P-tanah). Penelitian dilakukan di Rumah Kasa Balai Penelitian Tanaman Sayuran Lembang, dari bulan Mei sampai dengan Desember 2008. Rancangan percobaan yang digunakan ialah split-split plot design dengan tiga ulangan. Petak utama ialah varietas bawang merah, terdiri atas varietas Bangkok dan Kuning. Anak petak ialah kandungan/status P-tanah (Bray 1), terdiri atas rendah (&lt;15 ppm P2O5), sedang (16–25 ppm P2O5), dan tinggi (&gt;26 ppm P2O5). Anak-anak petak ialah dosis pupuk P (P2O5), terdiri atas 0, 60, 120, 180, dan 240 kg/ha. Pupuk N dan K diberikan sebagai pupuk dasar dengan dosis N 150 kg/ha dan K2O 150 kg/ha. Hasil penelitian menunjukkan bahwa terjadi interaksi antara varietas, status P-tanah, dan dosis pupuk P terhadap luas daun, bobot umbi segar, dan bobot umbi kering eskip per tanaman, serta serapan P tanaman bawang merah. Pada status P-tanah rendah dan sedang, dosis optimal pupuk P untuk varietas Bangkok dan Kuning masih belum diketahui, karena kurva respons hubungan antara dosis pupuk P dan hasil umbi kering eskip masih linier. Pada status P-tanah tinggi, hubungan antara dosis pupuk P dan hasil umbi kering eskip varietas Bangkok ataupun Kuning bersifat kuadratik. Hasil umbi kering eskip maksimal diperoleh dengan dosis pupuk P sebesar 126,50 kg/ha P2O5 untuk varietas Bangkok dan 0 kg/ha P2O5 untuk varietas Kuning. Makin tinggi dosis pupuk P yang diberikan, maka makin tinggi pula residu pupuk P terdeteksi dalam tanah. Implikasi hasil penelitian ialah kebutuhan  pupuk P yang optimal pada bawang merah berbeda bergantung pada status P-tanah dan varietas yang digunakan.<br /><br />ABSTRACT. Sumarni, N, Rosliani, R, Basuki, RS,  and Hilman, Y 2012. Response of Shallots Plant to Phosphat Fertilization on Several Soil Fertility Levels (Soil-P Status). To achieve an optimum yield, fertilization should be applied based on plant nutrient requirement and soil nutrient content. This experiment was carried out at Screenhouse of Indonesian Vegetable Research Institute from May to December 2008, to find out the optimum dosage of P fertilizer for two shallots varieties on several soil fertility levels (soil-P status). A split-split plot design with three replications was set up for this experiment. Main plots were shallots varieties i.e.: Bangkok and Kuning. Subplots were three soil-P statuses i.e.: low (&lt;15 ppm P2O5), medium (16–25 ppm P2O5), and high (&gt;26 ppm P2O5). Sub-subplots were five levels of P fertilizer dosage of 0, 60, 120, 180, and 240 kg/ha P2O5. Nitrogen fertilizer of 150 kg/ha and K fertilizer (K2O) of 150 kg/ha were applied to all. The results showed that there were interaction effect among varieties, soil-P status, and P fertilizer dosages influencing leaf area, fresh, and dry weight of bulb yield, and P uptake by shallots plant. The optimal dosage of P fertilizer for Bangkok and Kuning varieties on low and medium of soil-P status was still unknown yet, since the relation response curve of relationship between P fertilizer dosages and dry bulb yield was still linear. Meanwhile, in high of soil-P status, the response curve was quadratic for both Bangkok and Kuning varieties. The maximum dry bulb yield was obtained by 126.50 kg/ha P2O5 for Bangkok and 0 kg/ha P2O5 for Kuning. The higher of P fertilizer dosage applied, the higher of residual of P fertilizer detected in soil. The optimum dosage of P fertilizer for shallots production was different depend on variety and soil-P status.<br />

scholarly journals Pengaruh Varietas, Status K-Tanah, dan Dosis Pupuk Kalium terhadap Pertumbuhan, Hasil Umbi, dan Serapan Hara K Tanaman Bawang Merah

2013 ◽  
Vol 22 (3) ◽  
pp. 233
Author(s):  
Rini Rosliani ◽  
Rofik Sinung Basuki
Keyword(s):  
Dry Weight ◽  
Nutrient Content ◽  
Fertility Level ◽  
K Uptake ◽  
Optimum Dosage ◽  
Central Java ◽  
K Fertilizer ◽  
P Fertilizer ◽  
Soil K Status ◽  
Bulb Yield

ABSTRAK. Pemupukan sebaiknya didasarkan pada kebutuhan tanaman dan kesuburan lahan agar diperoleh hasil yang optimal. Adanya keragaman tanah dan lingkungan yang cukup tinggi di Indonesia menyebabkan kebutuhan pupuk berbeda dari satu lokasi ke lokasi lainnya. Penelitian bertujuan untuk mendapatkan dosis pupuk K optimum untuk dua varietas bawang merah pada status K-tanah yang berbeda. Metode penelitian terdiri atas survei status K-tanah yang dilakukan di sentra produksi bawang merah di dataran rendah Jawa Barat dan Jawa Tengah, dan percobaan pot yang dilakukan di Rumah Kasa Balai Penelitian Tanaman Sayuran Lembang dari Bulan Maret sampai dengan Desember 2008. Rancangan percobaan yang digunakan untuk percobaan pot ialah petak terpisah dengan tiga ulangan. Petak utama ialah bawang merah varietas Bangkok dan Kuning. Anak petak ialah status hara  K-tanah, yaitu status K-tanah rendah (&lt;20 ppm K2O), sedang (21–40 ppm K2O), dan tinggi (&gt;41 ppm K2O). Anak-anak petak ialah dosis pupuk K terdiri atas 0, 60, 120, 180, dan 240 kg/ha K2O.  Pupuk N (150 kg/ha) dan P (150 kg/ha P2O5) diberikan sebagai pupuk dasar. Hasil penelitian menunjukkan bahwa tidak terjadi interaksi antara varietas, status K-tanah, dan dosis pupuk K terhadap bobot kering tanaman, luas daun, hasil bobot umbi segar, dan bobot umbi kering eskip bawang merah. Namun serapan hara K tanaman dan residu pupuk K dalam tanah dipengaruhi oleh interaksi ketiga faktor tersebut. Hubungan antara hasil umbi bawang merah varietas Bangkok dan Kuning dengan dosis pupuk K pada semua status K-tanah bersifat kuadratik. Dosis pupuk K optimum untuk varietas Bangkok ialah 126,67 kg/ha K2O pada status K-tanah rendah, 170,00 kg/ha K2O pada status K-tanah sedang, dan 1,5 kg/ha K2O pada status K-tanah tinggi, sedangkan dosis pupuk K optimum untuk varietas Kuning ialah 214,29 kg/ha K2O pada status K-tanah rendah, 216,67 kg/ha K2O pada status K-tanah sedang, dan 106,50 kg/ha K2O pada status K-tanah tinggi. Hasil umbi dan serapan hara tanaman varietas Bangkok dan Kuning pada status K-tanah tinggi nyata lebih tinggi dibandingkan pada status K-tanah rendah dan K-tanah sedang. Makin tinggi status K-tanah dan dosis pupuk K, maka makin tinggi pula residu K dalam tanah.<br /><br />ABSTRACT. Sumarni, N, Rosliani, R, Basuki, RS, and Hilman, Y 2012. Effects of Varieties, Soil-K Status, and K Fertilizer Dosages on Plant Growth, Bulb Yield, and K Uptake of Shallots Plant. In order to get the optimum yield, fertilization should be based on plant need of nutrient and nutrient content of soil. The presense of high diversities of soil and environment in Indonesia cause the fertilizer needed are different from one location to another. This research methodologies were survey of soil-K status on some shallots production areas in lowland of West and Central Java, and pot experiment that was carried out at Screenhouse of Indonesian Vegetable Research Institute from March to December 2008. The aim of this experiment was to find out the optimum dosage of K fertilizer for two shallots varieties on several soil fertility level (soil-K status). A split-split plot design with three replications was used in this experiment. As main plots were shallots varieties, consisted of Bangkok and Kuning varieties. Subplots were the content/status of soil-K, consisted of low (&lt;20 ppm K2O), medium (21–40 ppm K2O), and high (&gt;41 ppm K2O). Sub-subplots were K fertilizer dosages, consisted of 0, 60, 120, 180, and 240 kg/ha K2O. N fertilizer (150 kg/ha N) and P fertilizer (150 kg/ha P2O5) were applied as basic fertilizers. The results showed that there were no interaction between varieties, soil-K status, and K fertilizer dosages on plant leaf area, plant dry weight, fresh and dry weight of bulb yield of shallots. But K uptake by shallots plant and residual of K fertilizer in soil were affected by the three those factors. The curves of the relationship between K fertilizer dosages and bulb yield of Bangkok and Kuning varieties on all soil-K status were quadratics. The optimum dosage of K fertilizer for Bangkok variety were 126.67 kg/ha K2O on low of soil-K status, 170.00 kg/ha K2O on medium of soil-K status, and 1.50 kg/ha K2O on high of soil-K status; whereas for Kuning variety were 214.29 kg/ha K2O on low of soil-K status, 216.67 kg/ha K2O on medium of soil-K, and 106.50 kg/ha K2O on high of soil-K status.The bulb yield and K uptake of Bangkok and Kuning varieties were significantly higher on high soil-K status than on low and medium of soil-K status. The more higher of K fertilizer dosages and soil-K status gave the more higher of K residual of K fertilizer in soil.<br /><br />

scholarly journals Effect of Irrigation and Herbicides on Most Tenacious Weed Cyperus rotundus in Wheat

2021 ◽  
pp. 29-37
Author(s):  
Kairovin Lakra
Keyword(s):  
Management Practices ◽  
Irrigation Schedule ◽  
Maximum Yield ◽  
Dry Weight ◽  
Cyperus Rotundus ◽  
Flowering Stage ◽  
Split Plot ◽  
Hand Weeding ◽  
Clodinafop Propargyl ◽  
Plot Design

To manage the Cyperus rotundus (Purple nut sedge.) is a troublesome, economically damaging weed, widely naturalized in the tropical and subtropical regions of the world. A field experiment was done at Students Instructional Farm of Chandra Shekhar Azad University of Agriculture & Technology, Kanpur (U.P).The study was conducted to investigate the competitive effects of C. rotundus in wheat (Triticum aestivum L.) under varying irrigation regimes and herbicides in field conditions at Kanpur during Rabi 2017-18 and 2018-19 in a split plot design.  The experiment was laid out in split-plot design with four irrigation schedule viz. irrigation at CRI and active tillering stage (I1), irrigation at CRI + jointing + booting (I2), CRI + active tillering + booting + flowering stage (I3) and  irrigation at CRI + jointing + booting + flowering + milking stage (I4) were assigned to main plots and weed management practices viz. W1-weedy check, W2-two hand weeding at 20 and 40 DAS, W3-sulfosulfuron @25 g/ha , W4- pendimethalin (pre emergence) fbWCPL-15(clodinafop- propargyl 15 %) @400 g/ha , W5- carfentrazone ethyl 20% + sulfosulfuron 25%WG @ 100 g/ha , W6- halauxafen + penxasulam 23.5% @ 75 g/ha , W7- halauxafen - methyl 1.21% w/w + fluroxypyr @  and W8- clodinafop- propargyl 15% + metsulfuron 1% @ 400 g/ha  were allocated to sub plots. Application of two irrigations at CRI and active tillering stage (I1) significantly reduced the density of C. rotundus and their fresh and dry weight with highest weed control efficiency (WCE) over irrigation at CRI+ jointing+ booting+ flowering+ milking stage (I4), irrigation at CRI + active tillering + booting + flowering stage (I3) and irrigation at CRI + jointing + booting (I2). However, maximum yield was recorded with the application of five irrigation at CRI+ jointing+ booting+ flowering+ milking stage (I4). Among herbicidal treatments, lowest density, fresh and dry weight of C. rotundus with  the highest WCE resulted in higher  yield of wheat was recorded with the application of carfentrazone ethyl 20% + sulfosulfuron 25%WG as post emergence (35 DAS) at 100 g/ha as compared to other treatments. However, none of the herbicidal treatments as effective as hand weeding twice at 20 and 40 DAS.

Ketersediaan Fosfat, Serapan Fosfat, Dan Hasil Tanaman Jagung (Zea mays L.) Akibat Pemberian Kompos Granul Ela Sagu Dengan Pupuk Fosfat Pada Inceptisols

Agrologia ◽  
2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Maimuna La Habi ◽  
Jeanne Ivone Nendissa ◽  
Dessy Marasabessy ◽  
A. Marthin Kalay
Keyword(s):  
Zea Mays L ◽  
Experimental Treatment ◽  
Dry Weight ◽  
Phosphate Fertilizer ◽  
P Uptake ◽  
Corn Yield ◽  
Phosphate Fertilizers ◽  
Soil P ◽  
Randomized Design ◽  
P Fertilizer

Inceptisol is a young and newly developed soil so it needs to be optimized for crop cultivation. The aim of this research is to know the availability of soil P, P uptake and corn yield after application of granular composting of sago waste (KGES) together with phosphate fertilizer to Inceptisols soil. The experimental treatment was KGES which consisted of three levels: without KGES, 40 tons KGES ha-1, and 80 tons KGES ha-1, and the use of SP-36 (P) fertilizer consisting of three levels: without P fertilizer, 120 kg P ha-1, and 240 kg P ha-1. The experiment used a complete randomized design with 3 replications. The result of the experiment was analyzed variance and relationship test using interlaced analysis. The results showed that KGES together with phosphate fertilizers could increase soil pH causing phosphate to be available and plant roots could absorb nutrient phosphate well, so that the yield of corn kiln dry weight also increased. The highest yield of dry weight of grains (7.85 tons per ha) was obtained from a combination of 80 tons of KGES ha-1 and 240 kg P ha-1.Keyword: Keywords: Ella Sago, Inseptisols, maize, phosphate

scholarly journals Penentuan Metode Terbaik Uji Fosfor untuk Tanaman Tomat pada Tanah Inceptisols

2013 ◽  
Vol 22 (2) ◽  
pp. 139
Author(s):  
L Izhar ◽  
A D Susila ◽  
B S Puswoko ◽  
A Sutandi ◽  
I W Mangku
Keyword(s):  
Extraction Method ◽  
Soil Phosphorus ◽  
Block Design ◽  
Dry Weight ◽  
Extraction Methods ◽  
Soil P ◽  
Soil P Test ◽  
Coefficient Corrélation ◽  
P Fertilizer ◽  
Nutrient Extraction

ABSTRAK.  Fosfor merupakan salah satu hara penting tanah dan aplikasi hara tersebut pada konsentrasi yang sesuai sangat berpengaruh terhadap pertumbuhan tomat. Penelitian tentang studi analisis fosfor tanah dan aplikasi pupuk fosfor pada budidaya tomat pada tanah Inceptisols dilakukan di Kebun Percobaan dan Rumah Kaca di Cikabayan, Institut Pertanian Bogor, dari bulan Maret sampai dengan November 2010. Tujuan penelitian ialah untuk mendapatkan  metode  ekstraksi  fosfor tanah yang terbaik guna menentukan dosis pupuk fosfor pada budidaya tomat  pada tanah Inceptisols. Penelitian menggunakan rancangan acak kelompok dengan perlakuan pemberian pupuk fosfor pada beberapa tingkat dosis yaitu  0X, ¼ X, ½ X, ¾ X, dan 1X, di mana nilai X ialah 368,5 kg/ha P2O5 dengan empat ulangan. Perlakuan pemupukan fosfor diterapkan pada 6 bulan sebelum penanaman tomat. Analisis korelasi dilakukan antara kandungan P tanah dan pertumbuhan tanaman yang ditanam di dalam rumah kaca menggunakan media inkubasi berasal dari tanah yang diberi perlakuan dan dianalisis. Uji  fosfor  tanah menggunakan lima metode ekstraksi, yaitu metode Bray I (NH4F 0,03 N + HCl 0,025 N, nisbah 1:7); Bray II (NH4F 0,03 N + HCl 0,10 N ); Mehlich I (HCl 0,05 N + H2SO4 0,025 N); Morgan Wolf (NaC2H2H3O2.3H2O; pH 4,8); dan Truogh [HCl 0,10 N + (NH4)2SO4; pH 3]. Hasil penelitian menunjukkan adanya perbedaan yang nyata antara pengaruh perlakuan pupuk P terhadap parameter  tinggi tanaman,  jumlah daun, dan diameter batang tomat. Bobot segar biomassa dan bobot kering tomat juga menunjukkan  perbedaan pengaruh yang signifikan antarperlakuan. Nilai korelasi terbaik ditunjukkan oleh metode pengekstrak Mehlich I melalui parameter bobot kering dan bobot basah relatif tanaman. Dengan demikian, metode uji P tanah yang menggunakan Mehlich I dapat digunakan sebagai metode ekstraksi yang paling tepat untuk menganalisis unsur hara fosfor dengan koefisien korelasi 0,88, sehingga metode Mehlich I dapat diusulkan sebagai rekomendasi pemupukan P pada budidaya tomat pada tanah Inceptisols (nilai r = 0,89).  <br /><br />ABSTRACT. Izhar, L, Susila, AD, Purwoko, BS, Sutandi, A,  and  Mangku, IW. 2012. Determination of the Best Method of Soil P Test for Tomato (Lycopersicon esculentum Mill. L) on Inceptisols Soil. Phosphorus is one of important soil elements and application of the element in suitable concentration give high effect on tomato growth. A study on phosphorus analysis and its application for recommendation of soil fertilization of tomato cultivation on Inceptisols soil was conducted at the field and Greenhouse of Cikabayan, Bogor Agricultural University, from March to November 2010. The objective of this research was to obtain the best extraction method of soil-P test for determining phosphorus nutrient required for tomato cultivation on Inceptisol soil. Rate of phosphorus of 0X, ¼ X, ½ X, ¾ X, and 1X, where X was 368.5 kg/ha P2O5 with four replications, was applied in the study. The treatments were applied 6 months before planting date. The research was arranged in randomized complete block design. Analysis of correlation between soil-P and plant growth based on data collected from the plants grown in the greenhouse using incubation media in treated-soil was  analyzed. Soil-P test was carried out by using five extraction methods i.e. Bray I (HCl 0,025 N + NH4F 0.03), Bray II (NH4F 0.03 N + HCl 0.10 N), Mehlich I (HCl 0.05 N + H2SO4 0.025 N), Morgan Wolf (NaC2H2H3O2.3H2O; pH 4.8), and Truogh [HCl 0.10 N + (NH4)2SO4; pH 3]. The results showed that there were significant differences among the treatments of P fertilizer on the variables of plant height, leaf number, and stem diameter of tomato. Biomass fresh and dry weight of tomato also showed significantly different between the treatments applied. The highest correlation was shown on Mehlich I extraction reagent between plant dry and fresh weight. It means that, this P-nutrient extraction method was the most appropriate in determining phosphorus nutrient for tomatoes on Inceptisols soil with a coefficient correlation of 0.88. Mehlich I can also be used to develop a comprehensive phosphorus fertilizer recommendation for tomato cultivation on Inceptisols soil (r value = 0.89).<br /><br />

scholarly journals Biochar application for the improving soil fertility and paddy production on two systems of planting

2018 ◽  
Vol 52 ◽  
pp. 00004
Author(s):  
Antonio Sipayung ◽  
Tengku Sabrina ◽  
Revandy Damanik
Keyword(s):  
Soil Fertility ◽  
Dry Weight ◽  
Residual Biomass ◽  
Shoot Dry Weight ◽  
Two Factors ◽  
Main Plot ◽  
Wet Weight ◽  
Two Stages ◽  
Planting System ◽  
Plot Design

A product of pyrolysis of residual biomass called biochar has several benefits into soil. Bio-charcoal formed by burning organic waste which will produce activated carbon and organic carbon and will be added to the soil. The purpose of this study was to evaluate biochar ability to improve soil fertility and increase the production of paddy crops with two planting systems. Legowo planting system is intermittent cropping between two or more rows of rice plants and one empty row. The research was conducted in Tanjung Garbus’s Village, Deli Serdang District with an elevation of ± 50 Meters above sea level. This research used a Factorial Split Plot Design with two factors that was treatment of planting systems as main plot (S), consist of 2 (two) stages: Jajar Legowo 2:1 and Jajar Legowo 4:1 and the sub-plot was biochar application (B) consisting of 3 levels namely, without biochar application, 25.5 ton/ha, and 50.5 ton/ha. The results showed that planting system significantly affected shoot wet weight and shoot dry weight and biochar application had a significant effect on shoot wet weight and no significant effect on shoot dry weight. The interaction showed no significant effect on all parameters.

Maltol protects against infection of lodgepole pine seedlings by western gall rust

1988 ◽  
Vol 18 (12) ◽  
pp. 1658-1660 ◽  
Author(s):  
Peter V. Blenis ◽  
Kathleen L. Wiggins ◽  
James E. Cunningham ◽  
Michael A. Pickard
Keyword(s):  
Gas Chromatography ◽  
Untreated Control ◽  
Lodgepole Pine ◽  
Dry Weight ◽  
Single Application ◽  
Pine Seedlings ◽  
Split Plot ◽  
Four Levels ◽  
Seedling Infection ◽  
Plot Design

Uptake and translocation of maltol into 6-week-old Pinusconforta (Engelm.) var. latifolia seedlings was followed by means of gas chromatography. Maltol concentrations of 6.0–7.3 mg/g seedling dry weight (46–55 μg/seedling) were observed over the first 3 days following a single application of 50 mg maltol/seedling. A split-plot design was used to determine if maltol could reduce seedling infection by Endocronartiumharknessii. Whole plots consisted of two inoculum levels (7 or 30 mg of spores per tray of seedlings) and subplots consisted of four levels of maltol (0, 2, 10, or 40 mg/mL) applied 2 days before inoculation to one-half tray of seedlings at the rate of 5 mL/cavity. The highest concentration consistently and significantly reduced seedling infection relative to the untreated control, although it also caused some phytotoxicity.

scholarly journals Phenological development in bambara groundnut (Vigna subterranea) transferred from 14 to 11 h photoperiods

1996 ◽  
Vol 126 (2) ◽  
pp. 175-182 ◽  
Author(s):  
A. R. Linnemann
Keyword(s):  
Dry Weight ◽  
Bambara Groundnut ◽  
Main Axis ◽  
Vigna Subterranea ◽  
Split Plot ◽  
Total Seed ◽  
Seed Yields ◽  
Intermediate Value ◽  
Fractional Distribution ◽  
Plot Design

SUMMARYAspects of the photoregulation of phenological development in bambara groundnut were studied in a glasshouse experiment in The Netherlands. The influence of a 14 h photoperiod (which retards podding) during a period of variable length prior to an 11 h photoperiod (which induces podding) on flowering, yield and on the position of pods on the plants was determined. The third generation of three plants of genotype ‘Ankpa 4’ from Nigeria was used as the split-plot factor in a split-plot design with three replicates. The main plots were four daylength treatments: a period of 21, 28, 41 or 54 days under the 14 h photoperiod before transference to the 11 h photoperiod. Plants transferred after 28 or more days started flowering sooner the earlier they were transferred. Plants transferred after 21 and 28 days began flowering at the same time (51 days after sowing), thus indicating juvenility. At harvest, 135 days after sowing, the total seed dry weight per plant was higher for plants transferred after 41 and 54 days than for plants transferred after 21 days. Plants transferred after 28 days gave an intermediate value. Most (79–91%) pods were produced on branches that developed on nodes 1–4 of the main axis. There were no differences in the fractional distribution of the pods along the main axis in plants transferred after 28 or more days. Pods of plants transferred after 21 and 28 days were more evenly distributed over the nodes of the first two primary branches than pods of plants transferred after 41 and 54 days. Plants of the latter treatments produced their pods more towards the tips of the branches and concentrated on two neighbouring nodes (nodes 5 and 6 for plants transferred after 41 days and nodes 6 and 7 for plants transferred after 54 days). Delaying the induction of podding in this experiment therefore resulted in higher seed yields per plant and a more synchronized development and hence maturity of pods.

scholarly journals Pertumbuhan Sengon dan Produksi Padi Gogo pada Taraf Pemupukan P yang Berbeda dalam Sistem Agroforestri

2019 ◽  
Vol 10 (1) ◽  
pp. 1-6
Author(s):  
Derie Kusuma Budi Ningrum ◽  
Nurheni Wijayanto ◽  
Arum Sekar Wulandari
Keyword(s):  
Upland Rice ◽  
Oryza Sativa L ◽  
Fertilizer Application ◽  
Agroforestry System ◽  
Paraserianthes Falcataria ◽  
Split Plot ◽  
P Fertilizer ◽  
Main Plot ◽  
High Production ◽  
Plot Design

Agroforestry of upland rice (Oryza sativa L.) and sengon tree (Paraserianthes falcataria) could increase the growth of sengon trees; however, it would also increase the percentage of empty grain due to shade from the tree. Fertilization with P is expected to increase plant height, grain weight and weight of straw of upland rice and growth of sengon tree. The aim of this research is to analyze the growth and production of sengon and upland rice with agroforestry and P fertilizer application. Application in cultivation of upland rice using split-split plot design. The main plot is agroforestry and monoculture, subplot of Sintanur and Situ Bagendit varieties and split-split plot of P fertilization consisting of 4 levels, namely: P 0 = 0 g / plant, P50 = 3 g / plant, P100 = 6 g / plant and P150 = 9 g / plant. The application of P fertilizer showed that P 100% had high production on Sintanur varieties with monoculture. Agroforestry system can increase the growth of sengon plants.Keywords: agroforestry, P fertilizer, sengon, upland rice.

scholarly journals Pengujian Klon Batang Atas dan Dosis Pupuk NPK Pada Sambung Samping Kakao Rakyat

2016 ◽  
Vol 3 (2) ◽  
pp. 109
Author(s):  
Bambang Eka Tjahjana ◽  
Yulius Ferry
Keyword(s):  
Shoot Length ◽  
Optimal Dosage ◽  
Mycorrhizal Plant ◽  
Split Plot ◽  
Main Plot ◽  
Npk Fertilizer ◽  
Cacao Plantation ◽  
Superior Clones ◽  
Plot Design

<p><em>The productivity of cacao in Indonesia is still low, as most of cacao plants in farmers’ plantation have grown old. Rejuvenation of old cacao plants needs a lot of cost and time, therefore, it requires a cheaper and faster alternative. One of the alternatives is rehabilitation through </em><em>side </em><em>graft</em><em>ing</em><em> using scion from </em><em>superior </em><em>clones. The study was aimed to know the effect of ten cacao clones as scion and dosage of NPK fertilizer for side grafting of cacao plants.</em><em> </em><em>The research was conducted in cacao plantation, Way</em><em> Kanan</em><em> district, North Lampung, from 2012 to 2013</em>. <em>The </em><em>split plot design with three replications was used in this study;</em><em> with the main plot </em><em>factor </em><em>was</em><em> the 10 cacao superior clones as</em><em> scion i.e. K<sub>1</sub> = PA150, K<sub>2</sub> = Sca12, K<sub>3</sub> = TSH 908, K<sub>4</sub> = ICS60, K<sub>5</sub> = TSH 858, K<sub>6</sub> = IMC67, K<sub>7</sub> = Sulawesi 02, K<sub>8</sub> = Jumbo, K<sub>9</sub> = Sulawesi 01, </em><em>and</em><em> K<sub>10</sub> = ICCRI 04</em><em>. The </em><em>subplot </em><em>factor </em><em>was</em><em> the</em><em> NPK fertilizer</em><em> dosage</em><em>, i.e. P<sub>0</sub> = without fertilizer, P<sub>1</sub> = 300 g NPK, P<sub>2</sub> = 600 g NPK, and P3 = 300 g NPK + 100 g mycorrhiza. </em><em>E</em><em>ach </em><em>of the expeimental unit</em><em> consisted of 6 plants.</em><em> </em><em>The variables observed were the success level of side grafting, growth of shoot</em><em> </em><em>length and diameter</em><em> of shoot</em><em> stem.</em> <em>The results showed that the best success level and growth of shoot length of side grafting for cacao plantation in Way Kanan district, North Lampung was using scion obtained from TSH 908 and TSH 858 clones. Meanwhile, the optimal dosage of NPK fertilizer was 600 g/plant/year and 300 g/plant/year + 100 g mycorrhizal/plant.</em></p>

scholarly journals The Effect of Spraying Fertilizer NPK in the Growth Properties and Yield in Three Varieties of Peas Pisium sativum L

2018 ◽  
Vol 7 (2) ◽  
pp. 58-65
Author(s):  
Mhmood Thamer abd ◽  
Haider Rezaq Leiby ◽  
Salam Hassan Ali
Keyword(s):  
Weight Gain ◽  
Solution Process ◽  
Dry Weight ◽  
College Of Agriculture ◽  
Search Results ◽  
Highest Weight ◽  
Split Plot ◽  
Growth Properties ◽  
Plot Design

The experiment has been conducted at of  Al Bandar's station affiliated to all University of Al-Muthanna / college of agriculture during the season of  2015-2016 to study the effect of spraying NPK  foliar in the growth and yields of three varieties of split peas (Pisium sativum L). Experiment has been designed at  a split plot design within a randomized complete sectors (R.C.B.D.) with three replications. Have been distributed three varieties  Bonn Basque , Salkopou and Voksbonne in the main panels with three concentrations of spraying Foliar NPK (27-27-27) on the shoots (0, 5. 10 ml/ltr -1 ) in the secondary panels, the results show that the dry weight of vegetation differed significantly between the varieties under study where Bonn Basque recorded a highest weight of shoot which is 21.85 g while the product has been scored Voksbonne less weight, reaching 6.09 g, while the plants sprayed with the solution process recorded NPK which contributed to weight gain Dry where by concentrate  10 ml / l higher weight record which is 15.36 g as compared with non-sprayedplants .It is no ted that the search results of leaves , content of chlorophyll may log vegetative weight in the category Salkopou which is amounted to 34.86, while the class recorded Voksbonne less weight 32.23 g while the resultsof the spray using the solution NPK with a demonstrated focus of 10 ml / l higher content of chlorophyll recipe number Alqrnat in plant and Albdhur.aly Qurna weight have shown results of the experiment cultivar has surpassed Bonn Basque the highest number Qrnat while the class has recorded Voksbonne less weight while spraying the solution NPK increase of the number of Alqrnat as well as the seeds of the horn weight where the excelled focus 10 ml / liter on the rest of the concentrations used . 0.7tons / ha superior results also show the superiority of class BonneBusk recipe for winning the overall, scoring the highest quotient amounted to 0.69 tons / ha Panama show spraying brine concentrate NPK 10 ml / l holds on the rest of concentration

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