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

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.

2011 ◽  
Vol 1 (3) ◽  
pp. 121-130
Author(s):  
U. Ismaila ◽  
M. G. Kolo ◽  
A. U. Gbanguba

A Field trial was conducted at the aerobic rice experimental field of the NationalCereals Research Institute (NCRI), Badeggi, Nigeria (9 ° 04 N and 6° 7 E)in 2007 and 2008 wet seasons to determine the weed competitiveness andperformance of inter Ã¢â‚¬Â and intra‐specific aerobic rice (Oryza sativa L.) varietiesunder seven weeding regimes. The trial was laid out in a split plot designwith the two varieties of rice (NERICA 1 as inter Ã¢â‚¬Âspecific and FARO 46 asintra Ã¢â‚¬Âspecific) assigned to the main plot while seven weeding regimes (hoeweeding at 25, 45, and 65 days after sowing (DAS), 25 DAS, 45 DAS, 25 and45 DAS, application of 3’,3’ Ã¢â‚¬Â dichloropropionanilide /2, 4 – Dichlorophenoxyacetic acid (orizo plus R) by Candel Company Ltd. at 3.5 kg active ingredient(ai )ha Ã¢â‚¬Â1 at 25 DAS, hoe weeding at 25 DAS followed by orizo plus at 3.5 kg aiat 45 DAS and weedy check) constituted the sub – plots. The treatmentswere replicated three times in a split plot design. From the results, interspecificvariety (NERICA1) had better weed suppression ability with highergrain yield of 3.1 t ha Ã¢â‚¬Â1 than the intra‐specific variety (FARO 46). Weed controlwas better when hoe weeding was done at 25, 45 and 65 DAS or 25 and45 DAS and at 25 DAS followed by orizo plus at 45 DAS than in other treatments.However, hoe weeding at 25, 45 and 65 DAS gave significantlygreater grain yield than other treatments. Although economic yield was obtainedfrom hoe weeding at 25 DAS followed by orizo plus at 45 DAS.


2017 ◽  
Vol 14 (3) ◽  
pp. 1051-1054 ◽  
Author(s):  
Budianti Kadidaa ◽  
Gusti R. Sadimantara ◽  
Suaib Suaib ◽  
La Ode Safuan ◽  
Muhidin Muhidin

ABSTRACT: Demand for rice as a source of food in Indonesia continues to increase in line with the growth of population, while the capacity to produce paddy rice increasingly limited. One of the efforts is to develop upland rice by utilizing the dry land with organic fertilizer application. The research was conducted in North Buton using split plot design. The main plot was the treatment of manure dosage consisting of 4 levels of treatment and the second factor of local upland rice cultivars as a subplot consisting of 22 cultivars. Production characters were observed and assessments are panicle length, grain number, number of grain content, wet grain weight, dried grain weight, grain weight per culm, and grain yield (t ha-1). The results showed that the yield potency of local upland rice cultivar in North Buton ranged from 3.11- 4.97 t ha-1 and the treatment of organic fertilizer can increase the yield components of upland rice.


Author(s):  
Siti Syarah Maesyaroh ◽  
Ikhwan Sadid Albatsi ◽  
Wahid Erawan

Penelitian ini bertujuan untuk mengetahui pengaruh jarak tanam dan varietas terhadap keragaman serangga serta hasil pada tanaman padi. Penelitian dilakukan di lahan percobaan Fakultas Pertanian Universitas Garut pada Bulan November 2017 sampai Maret 2018. Penelitian menggunakan Rancangan Petak Terbagi (RPT, Split Plot Design) dengan empat ulangan. Varietas (V) sebagai petak utama (Main Plot) dengan dua taraf, yaitu: varietas Ciherang (v1) dan varietas Sunan Ambu (v2). Jarak tanam (J) berperan sebagai anak petak (Sub Plot) terdiri dari empat taraf, yaitu: Legowo 2:1 20 cm x 20 cm x 40 cm (j1), Tegel 25 cm x 25 cm (j2), Legowo 2:1 30 cm x 30 cm x 50 cm (j3) dan Tegel 30 cm x 30 cm (j4). Hasil penelitian menunjukkan tidak terjadi interaksi antara varietas padi dan jarak tanam terhadap keragaman serangga serta hasil pada tanaman padi. Kombinasi perlakuan varietas Sunan Ambu dengan jarak tanam legowo 2:1 (30 cm x 30 cm x 50 cm) mampu menekan keberadaan serangga hama hingga jumlahnya seimbang dengan serangga predator.Varietas Ciherang menunjukkan penampilan terbaik pada bobot gabah basah per plot. Varietas Sunan Ambu menunjukkan penampilan terbaik pada jumlah malai dan bobot 1000 butir. Jarak tanam legowo 2:1 (30 cm x 30 cm x 50 cm) memberikan pengaruh terbaik pada jumlah malai. Jarak tanam tegel (30 cm x 30 cm) memberikan pengaruh terbaik pada bobot gabah basah per plot. Bobot 1000 butir tidak berbeda nyata untuk semua perlakuan jarak tanam. Kata kunci : Padi, serangga, jarak tanam.


Jurnal Solum ◽  
2018 ◽  
Vol 15 (1) ◽  
pp. 17 ◽  
Author(s):  
Rahmi Yulia ◽  
Nelvia Nelvia ◽  
Erlida Ariani

The research aims to study the effect of mixture of cocopeat and rock phosphate on growth and yield of three varieties of upland rice in Ultisols medium. The research was conducted at the Green House of the Faculty of Agriculture, University of Riau, Pekanbaru from March to August 2017. The research used Split Plot Design. The main plot were upland rice consist of three varieties (Situ Bagendit, Situ Patenggang and Inpago 8). The subplots were mixture of cocopeat 10 t ha-1 with rock phosphate (RP) doses 0, 30, 45, and 60 P2O5 kg ha-1. The parameters observed were plant height, number of maximum tillers and productive tillers, panicle length, flowering age, number of grain panicle-1, weight of dry milled grain and weight of 1000 grain. The results showed that the application of mixture of cocopeat doses 10 t ha-1 and RP doses 30 – 60 P2O5 kg ha-1 have effect to plant height, panicle length, and weight 1000 grain for Situ Bagendit, Situ Patenggang and Inpago 8 compare to without RP, but tended increase number of maximum and productive tillers and decrease flowering age. The application cocopeat doses 10 t ha-1 and RP doses 30 P2O5 kg ha-1 increased number of filled grain panicle-1 and weight of dry milled grain on three varieties, weight of dry milled grain Situ Patenggang > Inpago 8 > Situ Bagendit on each doses of RP and have number of productive tillers of these varieties 1,5 – 2  is greater than its descriptions.Keywords : rock phosphate, ultisol, upland rice


BUANA SAINS ◽  
2008 ◽  
Vol 8 (2) ◽  
pp. 189
Author(s):  
Abdul Hamid

The effects of pruning of Paraserianthes falcataria tree in an agroforestry system on yield of intercrops and tree performance were studied at Perhutani RPH Jatirejo, BKPH Pare, KPJH Kediri. Maize, stick nut, and chili were used as companion crops in between rows of two years old Paraserianthes falcataria tree. A split plot design with four replicates was set up for the experiment. The trees were 25%, 50% and 75% pruned. The measured parameters included growth and yield of the intercrops and performance of the tree. Results of this study showed that regular pruning of the agroforestry tree and planting of intercrops did not hinder growth and performance of the agroforestry tree, especially that was pruned 75%. Pruning of the tree also increase yield of the intercrops


2020 ◽  
Vol 4 (2) ◽  
pp. 61-70
Author(s):  
Faridah Faridah ◽  
Erida Nurahmi ◽  
Nurhayati Nurhayati

Abstrak. Penelitian ini dilaksanakan diTaman Teknologi Pertanian (TTP) Jantho Kecamatan Kota Jantho, Kabupaten Aceh Besar, dan Laboratorium Fisiologi Tumbuhan Fakultas Pertanian Universitas Syiah Kuala, yang berlangsung sejakbulan Agustus hingga Desember 2016. Penelitian ini menggunakan rancangan petak terpisah (split plot design), dengan dua faktor yaitu dosis pupuk kompos jerami dan varietas. Dosis pupuk kompos jerami menjadi petak utama yang terdiri atas 3 taraf yaitu (kontrol, 10 dan 20 ton ha-1), varietas menjadi anak petak yang terdiri atas 2 taraf yaitu (Situ Patenggang dan Sanbei). Peubah yang diamati meliputi tinggi tanaman, jumlah daun, jumlah anakan, dan berat berangkasan kering. Perlakuan dosis pupuk kompos jerami berpengaruh sangat nyata terhadap tinggi tanaman pada umur 4 dan 8 MST. Perlakuan varietas berpengaruh sangat nyata terhadap jumlah daun pada umur 4 dan 8 MST. Terdapat interaksi antara kompos jerami dan varietas terhadap jumlah anakan, jumlah daun dan berat berangkasan kering. Dosis pupuk kompos jerami yang terbaik terhadap pertumbuhan padi gogo  pada tanah ultisol adalah 20 ton ha-1. Pertumbuhan padi gogo terbaik pada tanah ultisol dijumpai pada varietas sanbei. Kombinasi terbaik terhadap pertumbuhan padi gogo pada tanah ultisol adalah dosis pupuk kompos jerami 20 ton ha-1 dengan varietas sanbei.The Effect of Straw Compost Fertilizer on the Growth of Two Gogo Rice Varieties (Oryza sativa L.) in Ultisol SoilAbstract. This research was conducted in the Agricultural Technology Park (ATP) of Jantho, Kota Jantho Subdistrict, Aceh Besar Regency, and Laboratory of Plant Physiology at the Faculty of Agriculture, Syiah Kuala University, which lasted from August to December 2016. The study used a split plot design, with two factors are doses of straw compost fertilizer and varieties. The doses of straw compost became the main plot consisting of 3 levels, namely (control, 10 and 20 tons ha1), the varieties being subplots consisting of 2 levels namely (Situ Patenggang and Sanbei). The variables observed included plant height, number of leaves, number of tillers, and dry weight. The treatment of straw compost doses significantly affected plant height at age 4 and 8 WAP. The treatment of varieties had a very significant effect on the number of leaves at ages 4 and 8 WAP. There were interactions between straw compost and varieties on the number of tillers, number of leaves and weight of dry stover. The best dose of straw compost for padigogo growth in ultisol soil is 20 tons ha-1. The best growth of upland rice on ultisol soil was found in sanbei varieties. The best combination of the growth of upland rice on ultisol soil is the dose of straw compost fertilizer 20 tons ha-1 with varieties of sanbei.


Author(s):  
Jenal Mutakin ◽  
Ayudita Damayanti ◽  
Rama Adi Pratama

Padi merupakan komoditas tanaman pangan penghasil beras yang menjadi makanan pokok lebih dari setengah penduduk dunia dan memegang peranan penting dalam kehidupan ekonomi Indonesia. Penelitian ini bertujuan untuk mengetahui pengaruh sistem tanam dan jarak tanam terhadap dominasi gulma, pertumbuhan dan hasil padi di Desa Depok Cisompet Kabupaten Garut. Penelitian dilaksanakan pada bulan Oktober 2017 sampai Februari 2018. Metode yang digunakan dalam penelitian ini adalah metode eksperimental menggunakan Rancangan Petak Terpisah (Split Plot Design) dengan faktor pertama sebagai main plot adalah sistem tanam (S) terdiri dari 3 taraf perlakuan, yaitu : s1 = Sistem Organik, s2 = Sistem Tanpa Olah Tanah (TOT), dan s3 = Sistem Konvensional, sedangkan faktor kedua sebagai sub plot adalah jarak tanam (J) terdiri dari 4 taraf perlakuan, yaitu : j1 = 20 x 20 x 40 cm, j2 = 30 x 30 x 50 cm, j3 = 25 x 25 cm, dan j4 = 30 x 30 cm, kombinasi perlakuan sebanyak 12 yang diulang 3 kali. Hasil penelitian menunjukkan bahwa terjadi interaksi antara sistem tanam dengan jarak tanam terhadap tinggi tanaman umur 40 HST, dan tinggi tanaman umur 60 HST. Secara mandiri sistem tanam organik memberikan pengaruh terbaik terhadap jumlah anakan dan jumlah anakan produktif, sedangkan sistem konvensional memberikan pengaruh terbaik terhadap bobot gabah per rumpun dan bobot 1000 butir gabah kering panen, serta terdapat gulma dominan yang berbeda pada sistem organik dengan sistem TOT dan sistem konvensional. Kata Kunci : Sistem Tanam, Jarak Tanam, Gulma, Oryza sativa L.


Agrotek ◽  
2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Baso Daeng

<em>The rate of conversion of paddy fields and irrigation water crisis suggest to consider the development of upland rice.� Empowerment of organic-based dryland done to increase rice, as well as environmental sustainability efforts.� The purpose of this experiment was to determine the effect of organic fertilizer residue to upland rice in the second growing season.� Experiments using a split-split plot design.� The main plot consisted of a dosage of 50% and 100% organic fertilizer in the first growing season.� Sub plot consisted of chicken manure (20 tons ha<sup>-1</sup>), <span style="text-decoration: underline;">Centrosema</span>� <span style="text-decoration: underline;">pubescens</span> (4.3 tons ha<sup>-1</sup>) + chicken manure (10 tons ha<sup>-1</sup>), and <span style="text-decoration: underline;">Thitonia</span> <span style="text-decoration: underline;">diversifolia</span> (4.3 tons ha<sup>-1</sup>) + chicken manure (10 tons ha<sup>-1</sup>).� Sub-sub plot consist of Danau Gaung and Batu Tegi varieties.� The different types of fertilizer had no effect on plant productivity.� The addition of <span style="text-decoration: underline;">Thitonia</span> <span style="text-decoration: underline;">diversifolia</span> gave a good effect on some growth variable and its resistance due pathogen attack.� Batu Tegi varieties are varieties that give the best response from an organic fertilizer.� Interaction between dosage, type of fertilizer, and varieties do not provide areal impact.</em>


2020 ◽  
Vol 29 (1) ◽  
pp. 55-62
Author(s):  
Darko Jovanović ◽  
Ivan Cuvaca ◽  
Jon Scott ◽  
Stevan Knežević

Field experiment was conducted in 2019 at Haskell Agriculture Laboratory, Concord, NE, USA. Goal of the study was to test the influence of PRE-EM herbicides on the Critical Time for Weed Removal (CTWR) in dicamba-tolerant soybean. The study was arranged in a split-plot design which consisted of four herbicide regimes as main plot treatments and seven weed removal timings as subplot treatments, with four replications. The herbicide regimes included: (1) no PRE and glyphosate, (2) acetochlor and dicamba as PRE and glyphosate as POST, (3) acetochlor and dicamba as PRE and glyphosate and dicamba as POST, and (4) acetochlor and fomesafen as PRE and acetochlor, glyphosate and dicamba as POST. The five weed removal times included the V1, V3, V6, R2 and R5, and there were also weedy and weed-free season long plots. By utilizing herbicide regimes, the CTWR was delayed to 632 GDD (until V4 soybean growth stage, 28 days after emergence) for acetochlor and dicamba as PRE and glyphosate as POST, 861 GDD (until V6 soybean growth stage, 32 days after emergence) for acetochlor and dicamba as PRE and glyphosate and dicamba as POST, and 1060 GDD (until R1 soybean growth stage, 42 days after emergence) for acetochlor and fomesafen as PRE and acetochlor, glyphosate and dicamba as POST.


Author(s):  
Amir Mahmud ◽  
Mukhlis Mukhlis

Penelitian ini telah di lakukan di Desa Purwodadi Kecamatan Padang Sidimpuan Batunadua Kota Padangsidimpuan Provinsi Sumatera Utara dari bulan Mei sampai dengan bulan Agustus 2017. Tujuan dari penelitian ini adalah untuk menguji beberapa jenis mulsa dalam mengendalikan gulma pada beberapa varietas tanaman padi sawah dengan metode System Of Rice Intensification. Percobaan ini menggunakan Rancangan Petak Terpisah (Split plot design) dalam pola RAK dengan dua faktor. Faktor utama adalah varietas padi sawah yang terdiri dari tiga taraf perlakuan yaitu varitas Aryze H6444, varitas Situ Bagendit dan varitas Siganteng. Faktor anak petak adalah penggunaan mulsa yang terdiri dari empat taraf perlakuan yaitu jerami padi, sekam padi, titonia dan mulsa plastik hitam.Varitas Aryze H6444 Gold dan varitas Siganteng menunjukkan hasil terbaik pada penggunaan mulsa plastik, sedangkan varitas Situ Bagendit menunjukkan hasil terbaik pada mulsa jerami padi. Jenis gulma Ludwigia octovalvis merupakan gulma yang mendominasi pada pemberian mulsa jerami padi, sekam padi dan mulsa plastik. Sedangkan pada mulsa Titonia jenis gulma yang mendominasi adalah gulma Eleusine indica. Penggunaan mulsa plastik lebih baik dari pada penggunaan mulsa Titonia, mulsa jerami padi dan sekam padi dalam menekan pertumbuhan gulma pada tanaman padi sawah dengan sistem SRI. Kata Kunci : pengendalian gulma, jenis mulsa, beberapa varitas,metode SRI.


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