scholarly journals Effects of spacings and butachlor levels on weed control, growth and yield of NERICA 1 rice (Oryza sativa L. x Oryza glaberrima L.)

2017 ◽  
Vol 62 (4) ◽  
pp. 361-369
Author(s):  
Hassan Kasim ◽  
Ibrahim Musa ◽  
Mustapha Muhamman
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Weed Control ◽  
Crop Production ◽  
Field Experiments ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
Oryza Glaberrima ◽  
Control Growth ◽  
Main Plot

Poor agronomic practices coupled with herbicide mismanagement influence crop performance, yield, weed infestation and environmental hazards. Thus, field experiments were carried out to investigate the effect of spacing and reduced levels of butachlor on weed control and yield of NERICA 1 rice (Oryza sativa L. x Oryza glaberrima L). The experiments were conducted in the 2011 rainy season at the Teaching and Research Farm of the Department of Crop Production and Horticulture, Modibbo Adama University of Technology, Yola, and Lake Gerio, Yola in the 2012 dry season. Yola is located between latitude 9o14? N and longitude 12o28? E in the Northern Guinea Savanna ecological zone of Nigeria. Treatments consisted of four spacings (20 cm x 20 cm, etc.) and four butachlor levels (3, 2, 1, and 0 kg ha-1 a.i.). The experiments were laid out in a split-plot design with spacings assigned to the main plot and butachlor levels assigned to the sub-plot and were replicated three times. Data were taken on percentage establishment, number of leaves per plant, general weed cover, panicle length and grain yield per hectare. Data generated were subjected to analysis of variance. Means showing a significant F-test were separated using LSD. Results obtained showed that butachlor at 1 kg ha-1 and 14 cm x 14 cm spacing gave the highest grain yield of 1441 kg ha-1 and maximum weed control. They are, therefore, recommended for adoption by farmers in Yola and similar environments.

PENAMBAHAN NITROGEN PADA PUPUK ORGANIK CAIR UNTUK PADI RATOON (Oryza sativa L.)

Jurnal BiBieT ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 25
Author(s):  
Jamilah Jamilah ◽  
Andi Rico Putra ◽  
Milda Ernita
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Sea Level ◽  
Paddy Field ◽  
Rice Plant ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
Foliar Fertilizer ◽  
Split Plot ◽  
Main Plot

<p>Percobaan penambahan N pada POC sebagai foliar fertilizer untuk tanaman padi ratoon telah dilaksanakan Di Kota Padang, September 2017 - Januari 2018, Tujuan penelitian mendapatkan kombinasi dari pemberian Nitrogen buatan terhadap POC untuk meningkatkan pertumbuhan dan hasil padi ratoon.  Percobaan disusun dalam bentuk split plot, dengan petak utama adalah pemangkasan terdiri atas 2 taraf yaitu; tidak dipangkas dan dipangkas.  Anak petak berupa pemberian foliar fertilizer terdiri atas 4 jenis yaitu; 0 (F1); 800 mg L<sup>-1</sup> Urea (F2); 25 ml L<sup>-1</sup> + Urea (F3); 50 ml L<sup>-1</sup> POC + Urea (F4), diulang 3 kali. Data dianalisis secara statistika menggunakan ANOVA α 5%, jika perlakuan berpengaruh nyata dilakukan dengan uji lanjut BNT α 5%.  Parameter  antara lain; berat hijauan pangkasan, tinggi tanaman,   persentase anakan produktif, umur berbunga dan panen, produksi jerami dan gabah per hektar. Dari hasil percobaan maka disimpulkan bahwa pemberian 800 mg L<sup>-1</sup> pupuk N tunggal dari Urea atau menambahkannya ke dalam POC tidak menguntungkan bagi pertumbuhan dan hasil padi ratoon. Pemangkasan tidak menurunkan hasil gabah yang mencapai 5,37 t ha<sup>-1</sup> GKP, dan peroleh usaha tani masih dapat diimbangi dengan adanya HPT sebesar 3,63 t ha<sup>-1</sup> yang sangat penting bagi program integrasi padi dan ternak. </p><p> </p><p><em>The experiment of an addition of N on foliar fertilizer for ratoon rice plant has been done In Padang City, September 2017 to January 2018, in a semi-intensive paddy field, with altitude 10 m above sea level. The experiment was arranged in the form of a split plot, with the main plot being a pruning consisting of 2 levels ie; not pruned and. The subplot of fertilizer foliar consists of 4 types namely; 0 (F1); 800 mg L<sup>-1</sup> Urea (F2); 25 ml L<sup>-1</sup> + Urea (F3); 50 ml L<sup>-1</sup> POC + Urea (F4). Experiment repeated 3 times. Data were analyzed statistically by using ANOVA 5% if treatment had real effect done with BNT test 5%. Parameters include; the weight of crop forage, plant height, a percentage of productive tillers, flowering age and harvest, straw and paddy production per hectare. From the experimental results, it was concluded that administering 800 mg L<sup>-1</sup> of single N fertilizer from Urea or adding it to POC as foliar fertilizer was not favorable for growth and yield of ratoon rice. Pruning does not reduce grain yield reaching 5.37 t ha<sup>-1</sup>, and earn farming can still be offset by the existence of HPT of 3.63 t ha<sup>-1</sup>.</em></p><p> </p><p> </p>

scholarly journals Effect of seedling age, seeding density and nitrogen fertilizer on growth and grain yield of rice (Oryza sativa L.)

2019 ◽  
Vol 3 (1) ◽  
pp. 81
Author(s):  
Saroj Thapa ◽  
Khagendra Thapa ◽  
Jiban Shrestha ◽  
Amit Chaudhary
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Management Practices ◽  
Oryza Sativa L ◽  
Critical Factor ◽  
Growth And Yield ◽  
Seeding Density ◽  
Potential Yield ◽  
Seedling Age ◽  
Nitrogen Rates

Rice (Oryza sativa L.) is first staple crop of Nepal. The national average yield of rice is less than its potential yield, for which poor agronomic management has been reported as the critical factor. Among various agro-management practices seedling age, seeding density and nitrogen rates significantly affect the growth and yield of rice. The lower seeding density produces the taller plant, more effective tiller, lower sterility and higher grain yield. On the other hand, seedling of older age from higher seeding density gives the lowest yield. Transplanting younger seedling with low seeding density and application of recommended dose of nitrogen gives a higher yield. This article summarizes various effects of seedling age, seeding density and nitrogen rates on plant height, number of effective tillers, number of filled grains, thousand grain weight and grain yield of rice. This information may be useful for maize growers and researchers.

scholarly journals PEMBERIAN POC GAMAL TERHADAP PERTUMBUHAN DAN PRODUKSI PADI SAWAH (Oryza sativa L.) DENGAN METODE SALIBU

EUGENIA ◽  
2018 ◽  
Vol 24 (1) ◽  
Author(s):  
Mifta Mamentu ◽  
Jeanne M. Paulus ◽  
Edy Lengkong
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Plant Height ◽  
Rice Field ◽  
Oryza Sativa L ◽  
Organic Fertilizer ◽  
Field Research ◽  
Lowland Rice ◽  
Growth And Yield ◽  
Treatment Factor

ABSTRACT The purpose of the research was to studied the application of gliricidia MOL on the growth and yield of lowland rice in the salibu method, and to get the best concentration of gliricidia liquid organic fertilizer  (POC) on the growth and production of lowland rice. Field research has been conducted in Tababo Village, Subdistrict of Belang, district of Southeast Minahasa. The treatment in the experiment consists of one treatment factor, that were concentrations of gliricidia POC, ie  : 0, 50 , 100, 150, and 200 ml/litre. The results showed that gliricidia POC  have an effect on plant height, the number of  grain/panicle, and the dry grain yield (GKP) / plot, but not affect the number of productive tillers and weight of 1,000 grain. The best results were achieved in gliricidia POC concentration 200 ml/litre  with the highest values were: plant height was 98.93 cm; 116.420 grain/panicle; and 8.300 kg dry grain yield or equivalent to 6.92 ton/ha.Keywords : gliricidia POC, production, lowland rice,  salibu method

Enhanced Growth and Yield of Rice (Oryza sativa L.) and Soil Enrichment is Mediated by Enhanced Availability of N and P in Soil and Plant Leaves on Application of Organic Matrix Entrapped Urea and DAP

2015 ◽  
Vol 1 (01) ◽  
pp. 57-68
Author(s):  
Rana Pratap Singh ◽  
Vishalakcchi Ashok ◽  
Sanjeev Kumar
Keyword(s):  
Oryza Sativa ◽  
Field Experiments ◽  
Oryza Sativa L ◽  
Organic Matrix ◽  
Growth And Yield ◽  
Cow Dung ◽  
Plant Leaves ◽  
Chemical Fertilizers ◽  
Field Station ◽  
Neem Leaves

Field experiments were conducted during the Kharif season of the cropping years 2011 and 2012 at the Experimental Field Station of Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow to compare the efficacy of organic matrix entrapped chemical fertilizers i.e. Urea and DAP (OMECF) with the conventional chemical fertilizers (CCF) and no fertilizer (NF) for the cultivation of rice (Oryza sativa). The OMECF prepared in granular form contained cow dung, powder of neem leaves (Azadirachta indica), and clay soil (diameter of particles less than 0.02 mm) in 1:1:1 ratios and 15% saresh (plant gum of Acacia sp.) as binder a long with half and one fourth of the recommended dose of commercially available urea and DAP. Single basal application of OMECF showed an increase in plant growth in terms of fresh and dry weights, root length, shoot length, root and leaves numbers and levels of NO3-, NO2-, NH4 + and PO4 -in the rhizosphere and their accumulation in plant leaves.

scholarly journals Effect of Integration of Organic and Inorganic Sources of Nitrogen on Rice (Oryza sativa l.) Yield

2020 ◽  
Vol 1 (2) ◽  
pp. 115-119
Author(s):  
Shenoy H ◽  
◽  
Siddaraju M. N.
Keyword(s):  
Oryza Sativa ◽  
Field Experiments ◽  
Oryza Sativa L ◽  
Growth And Yield ◽  
Panicle Length ◽  
Yield Attributes ◽  
Straw Yield ◽  
Yield Parameters ◽  
Effect On Yield ◽  
Percent Nitrogen

Field experiments were conducted during Kharif-2017 and 2018 at ICAR-Krishi Vigyan Kendra (KVK), Mangaluru of coastal Karnataka to study the effect of integration of organic and inorganic sources of nitrogen on the yield of midland rice. The results indicated that the integration of organic and inorganic sources of nitrogen significantly influenced the growth and yield attributes of rice. The highest grain yield (5434 and 5372 kg ha-1) and straw yield (6817 and 6927 kg ha-1) were recorded in the treatment comprising VC substituted with 50 percent recommended dose of nitrogen which was on par with PM substituted at 50 percent in both the years. A similar trend was also noticed in both the years for the growth and yield parameters where the highest plant height (94.93 and 96.30 cm) highest productive tillers (16.85 and 18.12) and longer panicle length (17.54 and 18.65 cm) was recorded in the treatment where 50 percent nitrogen was substituted by vermicompost compared to control. The remaining treatments of organic substitution ratios with urea also had a beneficial effect on yield and yield parameters of rice compared to control.

Keragaman Agronomi Tanaman Padi (Oryza sativa L.) Varietas Pandan Putri pada Beberapa Sistem Tanam di Kecamatan Mundak Jaya Kabupaten Indramayu

2018 ◽  
Vol 1 (2) ◽  
pp. 1-7
Author(s):  
Yudhi Mahmud
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Plant Height ◽  
Oryza Sativa L ◽  
Block Design ◽  
Cropping System ◽  
Growth And Yield ◽  
Randomized Block Design

This reserach aims was to determine the effect of planting systems on the growth and yield of Pandan Putri  plants in several planting systems in Mundak Jaya Subdistrict, Indramayu Regency. The experiment used a randomized block design with four treatments, each treatment was six replication. The results showed that the treatment of legowo 2: 1 cropping system gave the highest effect for plant height per clump, number of tillers per clump, number of panicles per clump and dry milled grain yield per hectare and legowo 2: 1 cropping system gave the highest yield of dry unhulled rice, which is 5.19 tons / ha and was significantly different from other treatments

scholarly journals Performance of Pre Released Rice (Oryza sativa L.) Genotypes under Different Sowing Windows in Rabi Season

2020 ◽  
pp. 43-51
Author(s):  
D. Anil ◽  
Sreedhar Siddi
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Agricultural Research ◽  
Oryza Sativa L ◽  
Rice Crop ◽  
Growth And Yield ◽  
Yield Potential ◽  
Research Station ◽  
Net Returns ◽  
Sowing Dates

The aim of this study was to investigate the effect of different sowing dates on growth and yield potential of pre released rice genotypes under irrigated conditions of Northern Telangana zone. The field experiments were carried out during two consecutive rabi seasons of 2018-19 and 2019-20, on clay soils of agricultural research station, Kunaram, Telangana state, India. The experiment was laid out in strip plot design with three replications. The treatments comprised of three sowing dates i.e. 20th November, 5th December and 20th December in horizontal factor and four genotypes i.e. KNM 733, RNR 15048, KNM 1638 and KNM 118 in vertical factor. Pooled data analysis results revealed that the different sowing dates and genotypes significant effect on all the studied growth and yield characters. The rice crop sown on 20th December recorded significantly  higher grain yield ( 8138 kg ha-1) and Among the genotypes, the short slender, short duration genotype KNM 733 recorded the recorded the maximum grain yield ( 8024 kg ha-1), which was on par with the other genotypes. The treatment combinations data results concluded that the, among the genotypes the genotype KNM 118 was recorded highest grain yield (8438 kg ha-1) when sowing was taken up on 20th December and followed by  the genotype KNM 733 with sown on 20th  November. In respect of economics of treatment combinations, the highest net returns (Rs.91,165 ha-1) and B:C (2.47)  ratio were obtained when rice crop was sown during 20th December with the  genotype KNM 118 and followed by sown on 20th November with the  genotype KNM 733.

INFLUENCE OF INTER-ROW SPACING AND WEED CONTROL METHODS IN GROUNDNUT (Arachis hypogeal (L.)

2017 ◽  
Vol 16 (1) ◽  
pp. 86-95
Author(s):  
J. A. ADIGUN ◽  
O. R. ADEYEMI ◽  
S. T. O., LAGOKE ◽  
P. M. OLORUNMAIYE ◽  
O. S. DARAMOLA ◽  
...  
Keyword(s):  
Weed Control ◽  
Crop Production ◽  
Field Trials ◽  
Growth And Yield ◽  
Row Spacing ◽  
Control Methods ◽  
Weed Growth ◽  
Need To Evaluate ◽  
Weed Infestation ◽  
Main Plot

Weed competition has been identified as one of the major obstacles in crop production. The produc-tion of groundnut is limited by high weed infestation resulting in yield losses ranging from 50 - 80% in Nigeria. Hence, the need to evaluate integrated weed control in its production. Field trials were there-fore conducted at the Teaching and Research Farm of the Federal University of Agriculture, Abeokuta (7o 20’ N, 30 23’ E) to evaluate the influence of inter-row spacing and weed control methods on growth and yield of groundnut during the wet seasons in 2009 and 2010. The experiment was a Randomised Complete Design (RCBD) laid out in a split plot with three replications. The main plot treatment con-sisted of three inter-row spacings of 60 cm, 75 cm and 90 cm while the subplots included five weed control treatments of commercial formulation of metolachlor plus promethyne mixture (codal) at 1.0 kg a.i/ha, codal at 1.0 kg a.i./ha followed by supplementary hoe weeding at 6 weeks after sowing (WAS), codal at 2 kg a.i./ha, hoe weeding at 3, 6 and 9 WAS and a weedy check. Inter-row spacings of 60 cm and 75 cm reduced weed growth with consequent higher yields compared to the inter-row spacings of 90 cm in the early season of 2009. Application of codal at 1.0 kg a.i./ha followed by supplementary hoe weeding at 6 WAS combined with 60cm inter-row spacing gave effective weed control and higher groundnut pod yield than hoe-weeded control in both years of experimentation.

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