scholarly journals EFEKTIFITAS WAKTU PEMBERIAN DAN KONSENTRASI PACLOBUTRAZOL TERHADAP PERTUMBUHAN DAN HASIL KENTANG (Solanum tuberosum L.) VARIETAS SUPEJOHN

EUGENIA ◽  
2012 ◽  
Vol 21 (3) ◽  
Author(s):  
Frangki Sambeka ◽  
Semuel D. Runtunuwu ◽  
Johannes E.X. Rogi

ABSTRACT   The study aimed to examine the influence of time of application and concentration of paclobutrazol on growth and yield of potato crop Supejohn held in District Modoinding South Minahasa regency, from March to June 2012, using a randomized block design with two factors. The first factor is the concentration of Paclobutrazol with four standards are: 0 ppm, 75 ppm, 100 ppm, 125 ppm and the second factor is the provision of a three-level applications MST 4, 5 and 6 MST MST (Week After Planting). Based on research, the results of analysis of variance showed an interaction between application timing and concentration of paclobutrazol. Combination treatment with 125 ppm paclobutrazol 6 WAP application time can give significant effect on plant height, number of chlorophyll content, percentage weight class tuber yield components in the form of increased crop production amounted to 45.04 kg / plot (24 plants) / range 52. ton / ha by pressing the vegetative growth of plants. Key words : Supejohn, time application, concentration, paclobutrazol

2020 ◽  
Vol 16 (2) ◽  
pp. 167-172
Author(s):  
Johan Riry ◽  
Charles Silahooy ◽  
Vilma L Tanasale ◽  
Marlita H Makaruku

Mung bean is one of the leguminous plants that is very important to be developed and is a very popular crop for consumption in Indonesia. The use of inorganic fertilizer mix (NPK Phonska) is useful for increasing the production of this crop, but its continuous use without being balanced with soil improvement efforts can lead to negative effects on the soil and crop production. Thus, it is necessary to study the use of combination of inorganic fertilizers (NPK Phonska) with organic cow manure. This study aimed to determine the effects of doses of NPK Phonska fertilizer and cow dung manure on the growth and yield of mung beans. This study used a Randomized Block Design, with two factors. The first factor was dosage of NPK Phonska fertilizer mix, consisting of four levels i.e.: A0 (control, without provision), A1 (75 kg per ha), A2 (150 kg per ha), and A3 (225 kg per ha); and the second factor was composed of three levels, i.e.: K0 (control, without provision), K1 (15 ton per ha) and K2 (30 ton per ha). The experiment was done with three replications, so that there were 36 experimental units. The results showed that NPK Phonska fertilizer at a dose of 200 kg per ha (A3) and manure at a dose of 30 ton per ha (K2) gave the highest yield for all observation variables compared with other treatments, with a yield level of 1.82 tons per ha. Keywords:  cow dung, mungbeans, NPK Phonska fertilizer   ABSTRAK Kacang hijau merupakan salah satu tanaman leguminoseae yang sangat penting untuk dikembangkan dan merupakan tanaman yang sangat digemari untuk dikomsumsi di Indonesia. Penggunaan pupuk anorganik (NPK Phonska) berguna untuk meningkatkan produksi tanaman ini, namun penggunaannya secara terus menerus tanpa diimbangi upaya perbaikan tanah dapat menimbulkan efek negatif terhadap tanah dan produksi tanaman. Dengan demikian, perlu kajian penggunaan kombinasi pupuk anorganik (NPK Phonska) dengan pupuk organik kotoran sapi. Penelitian ini bertujuan untuk menentukan dosis pupuk NPK Phonska dan kotoran sapi terhadap pertumbuhan dan produksi tanaman kacang hijau. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) 2 faktor yaitu faktor pertama pemberian pupuk NPK Phonska yang terdiri dari empat taraf yaitu A0 (Kontrol, tanpa pemberian), A1 (75 kg per ha), A2 (150 kg per ha), dan A3 (225 kg per ha) serta faktor kedua terdiri dari tiga taraf yaitu K0 (kontrol, tanpa pemberian), K1 (15 ton per ha) dan K2 (30 ton per ha), dengan 3 ulangan sehingga terdapat 36 satuan percobaan. Hasil penelitian menunjukkan bahwa pemberian pupuk NPK Phonska dengan dosis 225 kg per ha (A3) dan pupuk kotoran sapi dengan dosis 30 ton per ha (K2) memberikan hasil tertinggi untuk semua pengamatan bila dibandingkan dengan perlakuan lainnya, dengan produksi yang dicapai sebesar 1,62 ton per ha. Kata kunci: kacang hijau, kotoran sapi, pupuk NPK Phonska


Kultivasi ◽  
2018 ◽  
Vol 17 (1) ◽  
Author(s):  
Meksy Dianawati

Abstract. Potassium (K) is very important nutrition for potato tuberization, which can be obtained from K2SO4 fertilizer. The high growth of potato crop on hydroponic cultivation needs to be balanced with the use of K fertilizer with various rate and time of application. This study aimed to increase the production of potato seed G0 with various rates and application time of K2SO4. The study was carried out in a plastic house in Lembang, West Bandung, West Java from June to September 2015. The study used a randomized block design with two treatment factors and five replications. The first treatment factor was the rate of K2SO4, ie 0.5; 1; 1.5; and 2 ppm. The second was the application time of K2SO4, ie 1; 2; and 1 and 2 months after planting (MAP). Data were analyzed by F test and continued with Duncan, ortogonal polinomial, and correlation test at 95% confidence level. The results showed that interaction between rate and application time of K2SO4 to plant height, number of large-tubers, number of small-tubers, and total number of tubers, and tuber weight per plant. Increased rate of K2SO4 on 1 MAP did not affect total number of tubers and number of small-tubers. Application of K2SO4 twice at 1 and 2 MAP required low rate of 0.5 ppm K2SO4 to obtain the highest of total number of tubers and number of small-tubers. Keywords : potato, seed, rate, time application, K2SO4Penelitian ini bertujuan untuk meningkatkan produksi benih kentang G0 dengan berbagai konsentrasi dan waktu aplikasi K2SO4. Penelitian dilaksanakan di rumah plastik di Lembang, Bandung Barat, Jawa Barat mulai Juni sampai September 2015. Penelitian menggunakan rancangan acak kelompok dengan dua faktor perlakuan dan lima ulangan. Faktor perlakuan pertama adalah konsentrasi K2SO4, yaitu 0,5; 1; 1,5; dan 2 ppm. Faktor perlakuan kedua adalah waktu aplikasi K2SO4, yaitu 1 bulan; 2 bulan; 1 dan 2 bulan setelah tanam (BST). Data dianalisis dengan uji F dan dilanjutkan dengan uji Duncan, uji polinomial ortogonal,  dan uji korelasi pada taraf kepercayaan 95%. Hasil penelitian menunjukkan bahwa terjadi interaksi antara konsentrasi dan waktu aplikasi K2SO4 terhadap tinggi tanaman, jumlah umbi ukuran besar, jumlah umbi ukuran kecil, total jumlah umbi, bobot umbi per tanaman, dan bobot per umbi. Jumlah umbi total terbanyak terdapat pada perlakuan konsentrasi K2SO4 terendah yaitu 0,5 ppm yang diberikan satu kali pada umur 2 BST. Peningkatan konsentrasi K2SO4 pada aplikasi umur 1 BST tidak mempengaruhi total jumlah umbi, jumlah umbi ukuran kecil, dan bobot per umbi. Aplikasi K2SO4 dua kali pada umur 1 dan 2 BST memerlukan konsentrasi yang rendah yaitu 0,5 ppm untuk mendapatkan total jumlah umbi, jumlah umbi kecil, dan bobot per umbi terbesar.


2018 ◽  
Vol 9 (2) ◽  
pp. 153-163
Author(s):  
Wiwik Ambarsari ◽  
Henly Yuliana

The study aimed to determine the effect of the combination of city waste compost and cattle manure on the growth and yield of pakcoy plants (Brassica rapa, L. Chinensis) in Aluvial, Indramayu Regency. The study was conducted at the Experimental Garden of the Faculty of Agriculture, Wiralodra University, Indramayu Regency from March to August 2018. This study used Factorial Pattern Randomized Block Design with two factors. The first factor is city waste compost and the second factor is cattle manure with 4 levels: 0%, 3.0%, 6.0%, and 9.0%, repeated twice. The results showed that there was an independent influence between city waste compost and cattle manure on plant height and number of leaves. The best combination to increase the feasibility weight of pakcoy consumption is by giving city waste compost 9.0% (S4) and cattle manure 6.0% (K3).


Author(s):  
Totong Siwanto ◽  
Sugiyanta , ◽  
Maya Melati

ABSTRACT<br />Application of organic fertilizer into the soil is designated as a source of macro, micro nutrients and organic acids; it also acts as soil ameliorant that improve physical, chemical and biological properties of soil. Application of high rates organic fertilizer has a constraint namely the availability and ease of application. Therefore, it is necessary to learn the use of organic fertilizer with low rates to improve the efficiency of chemical fertilizers. This research was aimed to study the effect of organic and inorganic fertilizers on growth and yield of paddy rice, as well as the efficiency of N, P, K inorganic fertilizer. Field experiment was conducted at Sawah Baru Research Station, University Farm IPB, Bogor, West Java from September to December 2013. The experiment used Randomized Block Design consisted of two factors: rates of organic fertilizer (0, 250, 500, 750, and 1,000 kg ha-1), and rates of inorganic fertilizer (0, 100, 200, 300, and 400 kg ha-1). The results suggested that the application of 1,000 kg organic fertilizer ha-1 + 400 kg inorganic fertilizer ha-1 did not show significant interaction. Application of organic fertilizer alone up to 1,000 kg ha-1 resulted in low growth and yield. Increasing rates of  application up to 400 kg inorganic fertilizer ha-1 increased the growth and yield of paddy rice. The highest N efficiency was 89.19% at a rate of 500 kg organic fertilizer ha-1 + 200 kg inorganic fertilizer ha-1, whereas the highest efficiency of P and K, respectively were 69.55% and 92.52% at a rate of 750 kg organic fertilizer ha-1 + 300 kg inorganic fertilizer ha-1.<br />Keywords: NPK, organic fertilizer, paddy rice


2018 ◽  
Vol 45 (3) ◽  
pp. 249
Author(s):  
Solikin ,

Dioscorea is potentially used as staple food to support food security. The research was aimed to determine the effect of stake length and time of  stem twining  on  the growth of Dioscorea sansibarensis Pax. The experiment was conducted  in  Purwodadi Botanic Garden from December 2014 until May 2015 using split plot randomized block design consisted of two factors, i.e. the stake length and time of stem twining. The stake length was the main plot consisted of 150 cm, 100 cm and 50 cm above soil surface and without stake (control). The time of stem twining as subplots, i.e. stem twined early, twined at the time of 4 leaves stage, and twined at 8 leaves stage. Each combination of the treatments was replicated three times. The results showed that there was significant effect on the stake length  and the time of stem twining treatments on the plant growth and yield. The stake  length of 150 cm treatment produced the highest fresh tuber and total plant dry weight, i.e., 257.24 g and 132.77 g per plant, respectively. On the contrary, the plant without stake produced the lowest fresh tuber and  total dry weight of plant, i.e., 112.10 g and 48.65 g per plant, respectively.<br /><br />Keywords: biomass,leaf area, photosyntesis, tuber weight


2021 ◽  
Vol 883 (1) ◽  
pp. 012052
Author(s):  
N Herawati ◽  
A R Aisah ◽  
I Mardian ◽  
B N Hidayah ◽  
B T R Erawati

Abstract Plant growth is influenced by seed quality. Seeds need to be treated to prevent pest and disease disorders or to increase seed germination. Soybean planting was carried out in this study by the treatment of varieties and seed pre-treatment application before planting. The study aimed to measure the growth and yield of soybeans by varieties and seed treatment before planting, carried out in the Village of Nggembe, District of Bolo, Bima Regency. The study used factorial randomized block design with two factors. The first factor was soybean varieties consisting of two levels, namely Devon and Dena varieties, and the second factor was the application of pre-planting seed treatments consisting of four levels namely Cruiser, Marshall, Agrisoy, and without seed treatment, each treatment was repeated three times. Observations were made on the performance of agronomic crops and soybean yields. The results showed that the treatment of soybean varieties and the application of seed treatment had a significant influence on plant height and soybean productivity, and both treatments had interactions on parameters of plant height, number of filled pods, weight of 100 seeds, and soybean productivity with the best results successively produced by a combination of Devon-Control, Devon-Marshall, Devon-Agrisoy, and Dena-Cruiser.


Author(s):  
Irpan Gunawan ◽  
Atak Tauhid ◽  
Isna Tustiyani

<p><em>Cauliflower is one of the vegetables for consumers. The demand for cauliflower was rising so it must be scaled up with fertilizer. The purpose of this study was to study the effect of chicken manure and NPK fertilizer on the growth and yield of cauliflower. The study was conducted in Sukasenang Village, Banyuresmi Sub-district, Garut Regency from July to August 2019. The study used a Randomized Block Design (RBD) in two factors each of the 3 rates with 2 replications. The first factor was the rates of chicken manure which consisted of 0, 10 and 20 tons ha<sup>-1</sup>; the second factor was NPK fertilizer which consists of 0, 100 and 200 kg ha<sup>-1</sup>. The parameter of this research was plant height, number of leaves, leaf area, weight and diameter crud. The results showed that there was no interaction between the chicken manure and NPK fertilizer. The treatment of 20 tons ha<sup>-1</sup> chicken manure affected the variable plant height, the number of leaves and leaf area. The rates of 200 kg ha<sup>-1</sup> NPK fertilizer had affected plant height, number of leaves, weight and diameter crud.</em></p>


GANEC SWARA ◽  
2019 ◽  
Vol 13 (2) ◽  
pp. 212
Author(s):  
I WAYAN SUKASANA ◽  
I NENGAH KARNATA ◽  
BUDI IRAWAN

   Pakcoy is a type of mustard plant that is quite popular with the community, it is very suitable to be cultivated considering the need for vegetables is quite large. The community's need for fresh and pesticide-free vegetables is a choice now in line with the community's understanding of a healthy diet. Alternatives to fulfillment are chosen by planting with hydroponic media. Hydroponics is a substitute for soil media that can be used to grow vegetable crops. The presence of hydroponics is expected to be able to overcome the narrowing of agricultural land and reduce the use of pesticides considering that pesticides greatly affect human health and the environment.   This study aims to determine the effect of nutritional doses of AB mix agrifarm and age of seedlings and their interactions on the growth and yield of pakcoy plants, this study is carried out in the experimental garden of the Faculty of Agriculture, Tabanan University which began on 9 December 2018 until 12 January 2019.   The study used a Randomized Block Design (RBD) consisting of two factors. The first factor is the nutritional dose of AB mix agrifarm (N) which consists of three dose levels, namely the dose of 850 ppm, 1050 ppm and 1250 ppm. The second factor is the age of seedlings (U) which consists of two seedling age levels, namely the age of seedlings 1 week and 2 weeks. Each treatment is repeated four times.   The results of the study obtained the interaction of dose agrifarm treatment with seed age showed a very significant effect (p 1 0.01) on all parameters except for the parameters of the number of leaves aged 35 days old which showed no significant effect (p 5 0.05). The economical wet weight of plant-1 and BKO of the highest yield of 1-crop yield is produced in the combination treatment of N3U, which amounted to respectively 244.09 g and 78.10g or increased respectively by 57.78% and 293.85% compared to results the lowest produced by the combination treatment of N1U1 is 154.71g and 19.83g


2017 ◽  
Vol 3 (2) ◽  
pp. 9
Author(s):  
Asep Samsul Mustopa

The experiment was carried out at Plant Biotechnology laboratorium and experimentalfield Faculty of Agriculture University of Winaya Mukti Tanjungsari Sumedang which the altitude is about 850 meters above sea level, from March 2008 until May 2008.Theobjective of this experiment was to studying the interaction effect of giberellat acidconcentration and and soaking time on seed viability, seed vigor, growth and yield ofJatropha curcas in nursery.Design used was Randomized Block Design (RBD) withfactorial pattern, treatment consisted of two factors and two replications. The first factorwas giberellat acid (GA3) concentration (K) which consisted of 4 levels namely : k1=250 ppm, k2= 500 ppm, k3= 750 ppm and k4= 1000 ppm. The second factor soakingtime on GA34 (M) which consisted of 4 levels namely : m1= 6 hour, m2= 18 hour dan m = 24 hour.The results of these experiment showed there was aninteraction between giberellat acid concentration and and soaking time on high of plant20 day after planting (DAP), 40 DAP, 60 DAP, number of leaves 20 DAP, 40 DAP, 60DAP, length of root, number of root, dry wight of root and dry wight of shoot. 


2019 ◽  
Vol 72 (3) ◽  
pp. 8927-8935 ◽  
Author(s):  
Alexander Calero Hurtado ◽  
Yanery Pérez Díaz ◽  
Dilier Olivera Viciedo ◽  
Elieni Quintero Rodríguez ◽  
Kolima Peña Calzada ◽  
...  

The use of Efficient Microorganisms (EM) can be an effective alternative to improve plant growth and yield in the bean cultivation. Therefore, different forms of application of efficient microorganisms were evaluated in the production of two cultivars of the common bean from November of 2013 to March of 2014. Two factors were studied; the first one was comprised of the two cultivars, Velazco Largo (VL) and Cuba Cueto (CC-25-9-N). The second factor consisted of four treatments with EM; without EM (control), soil inoculation (100 mL L-1), foliage applications (100 mL L-1), and the combined soil inoculation (100 mL L-1) plus foliar applications (100 mL L-1). The experiment was carried out in a randomized block design, in factorial outline 2×4, with three repetitions. The agronomic indicators were evaluated as the number of leaves per plant, the height of plants, number of pods per plant, number of seeds per pod, the mass of 100 seeds (g) and the yield (t ha-1). The results showed that the different forms of application of efficient microorganisms stimulated the agronomic indicators evaluated in both crops. The associated applications between the inoculation of the soil and foliage applications of efficient microorganisms provided better results, producing increments in the yield of 1.13 t ha-1 in VL and 2.15 t ha-1 in CC-25-9-N.


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