scholarly journals Growth and Yield of Boro Rice (BRRI Dhan 50) as Affected by Planting Geometry under System of Rice Intensification

2014 ◽  
Vol 2 (1) ◽  
pp. 36-43
Author(s):  
S. Chakrabortty ◽  
P. K. Biswas ◽  
T. S. Roy ◽  
M. A. A. Mahmud ◽  
H. Mehraj ◽  
...  
Keyword(s):  
Growth And Yield ◽  
System Of Rice Intensification ◽  
Planting Geometry ◽  
Rice Intensification ◽  
Boro Rice

scholarly journals Effects ofTrichodermaseedling treatment with System of Rice Intensification management and with conventional management of transplanted rice

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e5877 ◽  
Author(s):  
Ram B. Khadka ◽  
Norman Uphoff
Keyword(s):  
Grain Yield ◽  
Market Price ◽  
Crop Management ◽  
Growth And Yield ◽  
Yield Enhancement ◽  
System Of Rice Intensification ◽  
Soil Conditions ◽  
Rice Plants ◽  
Organic Cultivation ◽  
Rice Intensification

Many benefits ofTrichodermainoculation for improving crop production have been documented, including growth and yield enhancement and the alleviation of biotic and abiotic stresses. However, because rice is usually cultivated under continuous flooding that creates anaerobic soil conditions, this limits the benefits of these beneficial fungi. Cultivating rice with the methods of the System of Rice Intensification (SRI) provides rice plants with a more favorable environment for their colonization by beneficial microbes in the soil because the soil is more aerobic under SRI management and contains more organic matter. This study evaluated the effects ofTrichodermainoculation of rice plants under SRI management compared with transplanted and flooded rice plants, considering also the effects of different means of fertilization and different varieties in rice. Experiments were conducted in 2015 and 2016 under the tropical climate of Nepal’s western terai (plains) during both the rainy season (July to November) and the dry season (March to July). The results indicated significantly better performance (P = 0.01) associated withTrichodermainoculation for both seasons and for both systems of crop management in terms of grain yield and other growth-contributing factors, compared to non-inoculated rice cropping. Relatively higher effects on grain yield were recorded also with organic compared to inorganic fertilization; for unimproved (heirloom) varieties compared with improved varieties; and from SRI vs. conventional flooded crop management. The yield increase withTrichodermatreatments across all trials was 31% higher than in untreated plots (4.9 vs 4.5 mt ha−1). WithTrichodermatreatment, yields compared with non-treated plots were 24% higher with organic SRI (6.38 vs 5.13 mt ha−1) and 52% higher with non-organic SRI (6.38 vs 3.53 mt ha−1). With regard to varietal differences, under SRI managementTrichodermainoculation of the improved variety Sukhadhan-3 led to 26% higher yield (6.35 vs 5.04 mt ha−1), and with the heirloom variety Tilkidhan, yield was 41% higher (6.29 vs 4.45 mt ha−1). Economic analysis indicated that expanding the organic cultivation of local landraces under SRI management should be profitable for farmers where such rice has a good market price due to its premium quality and high demand and when SRI enhances yield. These varieties’ present low yields can be significantly increased by integratingTrichodermabio-inoculation with SRI cultural methods. Other recent research has shown that such inoculation can be managed profitably by farmers themselves.

scholarly journals APLIKASI MOL GAMAL PADA PERTUMBUHAN DAN PRODUKSI PADI SAWAH METODE SRI (System of Rice Intensification)

EUGENIA ◽  
2018 ◽  
Vol 24 (1) ◽  
Author(s):  
Jeanne M. Paulus ◽  
Jemmy Najoan ◽  
Paula C. Supit
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Rice Field ◽  
Field Research ◽  
Lowland Rice ◽  
Growth And Yield ◽  
System Of Rice Intensification ◽  
Interval Time ◽  
Treatment Factor ◽  
Rice Intensification

ABSTRACT The aim of the research was to studied the application of gliricidia MOL on the growth and yield of lowland rice in the SRI method, and to get the best time of gliricidia MOL application on the growth and production of lowland rice. Field research has been conducted in Tara-Tara II Village, West Tomohon Subdistrict for five months starting from June 2017 until November 2017. Treatment in the experiment consists of one treatment factor, that was interval time of gliricidia MOL application, ie  : 0, 5 , 10, 15, and 20 days. The results showed that time application of gliricidia MOL have an effect on the number of productive tillers, the number of filled grain/panicle, the number  of empty grain/panicle, and the dry grain yield (GKP) / plot, but not affect the plant height. The best results were achieved in gliricia MOL application on interval time every 15 days with a values were : 28.66 productive tillers; 176.90 fillet grain/panicle; 19.80 empty grain/panicle (lowest); and 9.50 kg dry grain yield or equivalent to 7.92 ton/ha.Keywords: gliricidia MOL, production, lowland rice,  System of Rice Intensification  (SRI)

Influence of system of cultivation and genotypes of preceding rice-ratoon on growth and yield of green gram (Vigna radiata L.) sown at varying dates in coastal alluvium soil of eastern India

2017 ◽  
Author(s):  
Sanat Kumar Dwibedi ◽  
Gopal Chandra De ◽  
Sudhi Ranjan Dhua ◽  
Ashok Kumar Mohanty
Keyword(s):  
Seed Yield ◽  
Best Management Practices ◽  
Management Practices ◽  
Soil Nutrient ◽  
Green Gram ◽  
Growth And Yield ◽  
System Of Rice Intensification ◽  
Residual Soil ◽  
Eastern India ◽  
Rice Intensification

Field experiment was conducted in coastal alluvium soil of eastern India during late rabi of 2009-10 and 2010-11 in split split-plot design with three dates of sowing for rice-ratoon i.e. 20 June, 5 and 20 July followed by green gram cv. PDM-139 (Samrat) i.e. 2 January, 17 January and 1 February in main plots, three systems of cultivation of the preceding rice-ratoon i.e. ratoons of rice under best management practices (BMP), system of rice intensification (SRI) and modified SRI (MSRI) in sub plots and two genotypes of rice-ratoon i.e. HR Ajay and HYV Tapaswini in sub sub-plots. Green gram was grown under residual soil nutrient and the crop sown on 2 January recorded the highest seed yield of 0.703 t ha-1 (REY of 2.933 t ha-1) and this was followed by sowing on 17 January and 1 February. The seed yield of green gram followed diminishing trend under SRI-ratoon, MSRI-ratoon and BMP-ratoon, respectively.

scholarly journals Effect of Crop Establishment Methods on the Performance of Boro Rice (Oryza sativa L.) in the Cooler Region under Light Texture Soil Condition

2010 ◽  
pp. 95-100
Author(s):  
ABS Sarker ◽  
MB Rahman ◽  
R Yasmeen ◽  
MA Islam ◽  
SMM Islam
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Rice Variety ◽  
Soil Condition ◽  
System Of Rice Intensification ◽  
Growth Duration ◽  
Crop Establishment ◽  
Rice Intensification ◽  
1000 Grain Weight ◽  
Boro Rice

An experiment was conducted at the Bangladesh Rice Research Institute regional station, Rangpur to investigate the performances of different establishment methods of Boro rice; variety BRRI dhan29 in light texture soil during Boro 2004-05 and 2005-06 seasons. Five crop establishment methods were tested in a randomize complete block design with three replications. The methods were: 1. Conventional transplanting method 2. System of Rice Intensification (SRI) method, 3. Farmers practice, 4. Seedling throwing method and 5. Direct-Wet Seeded Rice(DWSR) using drum seeder method. Grain yield was influenced by different crop establishment methods in both the seasons. The highest mean grain yield was obtained by BRRI recommended conventional transplanting method (6.27 t ha-1) followed by SRI method (5.70 t ha-1). The highest number of panicles m-2 was obtained from wet DSR by drum seeder method (341 m-2). Effectiveness of tiller (92%) was obtained from the SRI method. The largest number of filled grains per panicle (76) was obtained from the SRI method. The highest 1000-grain weight (23.2 g) was obtained by the farmer’s method. Less sterility was occurred (30 %) from farmer’s methods. The highest growth duration (175 days) was observed in farmer method. But the highest field duration of BRRI dhan29 (145 days) was observed in wet DSR using dream seeder.

PERFORMANCE OF UMAR-SRIMAT ON SOIL WATER CONSERVATION AND WEED CONTROL IN SYSTEM OF RICE INTENSIFICATION

2015 ◽  
Vol 76 (15) ◽  
Author(s):  
Umar Mohammed ◽  
Aimrun Wayayok ◽  
Mohd Amin Mohd Soom ◽  
Khalina Abdan
Keyword(s):  
Soil Moisture ◽  
Weed Control ◽  
Water Conservation ◽  
Crop Yields ◽  
Block Design ◽  
Water Productivity ◽  
Control Treatment ◽  
System Of Rice Intensification ◽  
Planting Geometry ◽  
Rice Intensification

Weed emergence is among the most important problems in system of rice intensification (SRI) due to extensive planting geometry of at least 25 × 25 cm and moist environment, thereby leading to water loss by means of evaporation from the broad space as a result of the extensive planting geometry, and transpiration by the weeds. This reduces the additional water saving which affect the potential of SRI water productivity.  It also reduces rice crop yields up to 70% if there is no weed control attempted. Nowadays, weed is being controlled by manual weeder which is labour demanding, while motorized weeders overcome the problem but still, it able to remove the weeds before rice canopy closure or 30 days after transplanting (DAT). This research was designed to evaluate the performance of UMAR-SRImat on soil moisture conservation and weed control. UMAR-SRImat was made using flaked rice straw and biodegradable adhesive. The design was laid out using randomized complete block design (RCBD) with three treatments [without soil cover (T1), SRImat (T2), UMAR-SRImat (T3)] and three replications. The analysis was conducted using analysis of variance (ANOVA). Volumetric moisture content (VMC) was determined at 18 and 25 DAT.  Weeds were observed and recorded to determine the weed dry weight and weed control efficiency at 20, 40 and 60 DAT. Plant height per hill was measured at 30 and 50 DAT, likewise, the number of tillers were counted at 30 and 50 DAT. The result of VMC showed that UMAR-SRImat significantly conserved water higher than the control treatment at 18 and 25 DAT of 3100.0a and 2680.0a m3/ha, respectively. The effectiveness of UMAR-SRImat mulched was 100% at 20 DAT 99.64% at 40 DAT and 97.99% at 60 DAT. This research revealed that UMAR-SRImat mulch could retain soil moisture and suppressed weeds up to 60 DAT.

Effect of Spacing and No. of Seedling per Hill on Growth and Yield Components of Rice cv. Chai Nat 1 under System of Rice Intensification

2018 ◽  
Vol 879 ◽  
pp. 95-100
Author(s):  
Tanaporn Kajonphol ◽  
Sattaya Tonwong ◽  
Sujaree Nonthakod ◽  
Chontira Sangsiri ◽  
Monamorn Precharattana
Keyword(s):  
Yield Components ◽  
Block Design ◽  
Yield Component ◽  
Growth And Yield ◽  
System Of Rice Intensification ◽  
Rice Intensification

We investigated effects of spacing and no. of seedling hill-1on growth and yield component of rice cv. Chai Nat 1 in system of rice intensification. The experiment included 25 × 25 cm, 30 × 30 cm, 40 × 40 cm, and 50 × 50 cm with single seedling hill-1, two seedlings hill-1, and three seedlings hill-1, respectively. The study was in Kasetsart University Chalermphrakiat Sakonnakhon Province Campus during November 2016 to March 2017. Each condition was laid out in a randomized completed block design with three replications. The experiment found that the no. of seedlings hill-1influence in the growth and the yield component of the rice, while the spacing does not. Moreover, there is no interaction between spacing and seedlings hill-1.The three seedling hill-1condition showed the highest in tillering (avg. = 24.13 tillers hill-1). The single seedling hill-1showed the lowest in tillering (avg. = 16.24 tillers hill-1). From this research indicated that optimized seed hill-1in rice cultivated system.

scholarly journals Yield of Boro rice under system of rice intensification with different water regimes and manural status

2015 ◽  
Vol 17 (2) ◽  
pp. 1-8
Author(s):  
MJ Rahman ◽  
PK Biswas ◽  
AKM R Amin ◽  
A Zahan
Keyword(s):  
Grain Yield ◽  
Harvest Index ◽  
Water Regime ◽  
Chemical Fertilizer ◽  
System Of Rice Intensification ◽  
Water Regimes ◽  
Waterlogged Condition ◽  
Saturated Condition ◽  
Rice Intensification ◽  
Boro Rice

A field experiment was carried out at the Agronomy Field, Sher-e-Bangla Agricultural University, Dhaka from December, 2011 to May, 2012 to study the yield of Boro rice under system of rice intensification (SRI) with different water regimes and manural status. The experiment consisted of two factors as three water regime viz., waterlogged condition (W1), saturated condition (W2) and alternate wet and dry condition (W3) in the main plots, and six manure and fertilizer combinations viz., cowdung 100% (F1), compost 100% (F2), chemical fertilizer 100% (F3), 50% chemical fertilizer + 25% compost + 25% cowdung (F4), 50% chemical fertilizer + 50% cowdung (F5) and 50% chemical fertilizer + 50% compost (F6) in the sub-plots. Water regime had significant effect on yield and yield components except number of effective tillers m-2, filled grains panicle-1, weight of 1000-grain and harvest index. The highest grain yield (5.74 t ha-1) was obtained from the waterlogged condition that was statistically similar with saturated condition (5.69), whereas  alternate wet and dry (AWD) gave the lowest grain yield (4.36 t ha-1). Manural status also significantly influenced yield attributes except 1000-grains weight. The combination of chemical fertilizer, cowdung and compost showed the best performance compared to other manural status. The highest grain yield (5.81 t ha-1) was obtained from chemical fertilizer 50% + cowdung 25% + compost 25% and the lowest grain yield (4.71 t ha-1) was obtained from compost 100%. The highest number of effective tillers hill-1 (33.71) was obtained from compost 100%. Chemical fertilizer 50% + cowdung 25% + compost 25% showed the highest harvest index (46.78%). In case of interaction effect of water regime and manural status the highest grain yield was observed in chemical fertilizer 50% + cowdung 25% + compost 25% of saturated condition (6.80 t ha-1).Bangladesh Agron. J. 2014, 17(2): 1-8

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