Is the system of rice intensification (SRI) pro poor? Labour, class and technological change in West Africa

2021 ◽  
Vol 193 ◽  
pp. 103229
Author(s):  
Sarah Lena Graf ◽  
Carlos Oya
Keyword(s):  
West Africa ◽  
Technological Change ◽  
System Of Rice Intensification ◽  
Rice Intensification

scholarly journals The West Africa Agricultural Productivity Programme (waapp)

Afrika Focus ◽  
2021 ◽  
Vol 34 (1) ◽  
pp. 127-154
Author(s):  
Olushola Samuel Fadairo ◽  
Moussa Sanguiana Keita
Keyword(s):  
West Africa ◽  
Research Design ◽  
Agricultural Productivity ◽  
T Test ◽  
System Of Rice Intensification ◽  
The West ◽  
Sustainable Solutions ◽  
The Past ◽  
Rice Intensification ◽  
Paddy Farmers

Abstract An understanding of how the System of Rice Intensification method of the West Africa Agricultural Productivity Programme (WAAPP) has influenced sustainable solutions to smallholder paddy farmers’ challenges of poor yield and marketing in Kindia Prefecture, Guinea informed this study. Causal research design was used, involving a survey of 126 beneficiaries and 78 non-beneficiaries of waapp. Data were collected mainly on the farmers’ enterprise characteristics: improvement in productivity, sales, and income from paddy. Data were summarised using descriptive, t-test and regression statistics at α0.05. waapp- and non-waapp-participating farmers had >10 years of farming experience. Most waapp farmers (67.5%) achieved higher sales and income from paddy than in the past. The productivity of the waapp farmers was higher and significantly different from that of the non-waapp farmers (t = 3.173; p < 0.05). Farmers’ opinion of market prospects after waapp intervention (β = 0.190) and their age (β = 0.237) significantly influenced their change in productivity. The waapp increased paddy production.

NGHIÊN CỨU ẢNH HƯỞNG CỦA PHÂN HỮU CƠ BOKASHI THAN ĐẾN SINH TRƯỞNG PHÁT TRIỂN VÀ NĂNG SUẤT GIỐNG LÚA H1 TRONG VỤ ĐÔNG XUÂN TẠI THỪA THIÊN HUẾ

2014 ◽  
Vol 91 (3) ◽  
Author(s):  
Trần Minh Quang
Keyword(s):  
System Of Rice Intensification ◽  
Rice Intensification

Mục đích chính của nghiên cứu này là xác định được lượng phân bón Bokashi than thích hợp nhất đối với giống lúa H1 theo phương thức thâm canh lúa cải tiến SRI (System of Rice Intensification) góp phần đưa ra quy trình thâm canh giống lúa H1 ở Thừa Thiên Huế. Kết quả nghiên cứu cho thấy trong điều kiện vụ Đông Xuân ở Thừa Thiên Huế giống lúa H1 sinh trưởng phát triển tốt, mang lại hiệu quả cao nhất khi sử dụng mức 5 tấn phân hữu cơ Bokashi than/ha. Khi bón ở mức này đã tăng khả năng cải thiện tính chất đất ở cả 3 mặt: lý tính, hóa tính và sinh tính.

INFLUENCE OF THE SYSTEM OF RICE INTENSIFICATION ON RICE YIELD AND NITROGEN AND WATER USE EFFICIENCY WITH DIFFERENT N APPLICATION RATES

2009 ◽  
Vol 45 (3) ◽  
pp. 275-286 ◽  
Author(s):  
LIMEI ZHAO ◽  
LIANGHUAN WU ◽  
YONGSHAN LI ◽  
XINGHUA LU ◽  
DEFENG ZHU ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
N Use Efficiency ◽  
System Of Rice Intensification ◽  
N Application ◽  
Application Rates ◽  
Rice Intensification ◽  
Use Efficiency ◽  
N Rates ◽  
N Use

SUMMARYField experiments were conducted in 2005 and 2006 to investigate the impacts of alternative rice cultivation systems on grain yield, water productivity, N uptake and N use efficiency (ANUE, agronomic N use efficiency; PFP, partial factor productivity of applied N). The trials compared the practices used with the system of rice intensification (SRI) and traditional flooding (TF). The effects of different N application rates (0, 80, 160 and 240 kg ha−1) and of N rates interacting with the cultivation system were also evaluated. Resulting grain yields with SRI ranged from 5.6 to 7.3 t ha−1, and from 4.1 to 6.4 t ha−1 under TF management. On average, grain yields under SRI were 21% higher in 2005 and 22% higher in 2006 than with TF. Compared with TF, SRI plots had higher harvest index across four fertilizer N rates in both years. However, there was no significance difference in above-ground biomass between two cultivation systems in either year. ANUE was increased significantly under SRI at 80 kg N ha−1 compared with TF, while at higher N application rates, ANUE with SRI was significantly lower than TF. Compared with TF, PFP under SRI was higher across all four N rates in both years, although the difference at 240 kg N ha−1 was not significant. As N rate increased, the ANUE and PFP under both SRI and TF significantly decreased. Reduction in irrigation water use with SRI was 40% in 2005 and 47% in 2006, and water use efficiency, both total and from irrigation, were significantly increased compared to TF. With both SRI and TF, the highest N application was associated with decreases in grain yield, N use efficiency and water use efficiency. This is an important finding given current debates whether N application rates in China are above the optimum, especially considering consequences for soil and water resources. Cultivation system, N rates and their interactions all produced significant differences in this study. Results confirmed that optimizing fertilizer N application rates under SRI is important to increase yield, N use efficiency and water use efficiency.

scholarly journals UJI BERBAGAI DOSIS PUPUK HERBAFARM GRANUL TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN PADI SAWAH (Oryza sativa L.) DENGAN METODE SRI

2019 ◽  
Vol 15 (2) ◽  
pp. 95-104
Author(s):  
AHMAD EFRIZAL ◽  
CHAIRIL EZWARD ◽  
SEPRIDO SEPRIDO
Keyword(s):  
Oryza Sativa ◽  
Standard Treatment ◽  
Oryza Sativa L ◽  
System Of Rice Intensification ◽  
Random Group ◽  
The Real ◽  
Rice Intensification ◽  
Plot Experiment

This report aims to understand response various herbafarm granule doses of growth and the production of rice (Oryza Sativa L.) fields with the SRI (System Of Rice Intensification). Draft use is a random (group shelves) non factorials namely fertilizer herbafarm granule consisting of 6 standard treatment consisting of 3 test, H0 (Without treatment), H1 (2,43 g/plot), H2 (4,86 g/plot), H3 (7,29 g/plot), H4 (9,72 g/plot), H5 (12,15 g/plot). Each treatment repeat three times, 18 units in order to obtain a plot / experiment, Every a plot there were 9 plants and 7 of them sample plants. The quantity of a crop a whole 162 plant. Then the data obtained by in statistically analysis, further by test different real bnj truthful , 5 percent the first. Based on the research done so it can be concluded that treatment fertilizer herbafarm granule with the SRI give impact on the real parameters, for observation age flowering ( 77.33 hst ) and aged harvest ( 109 .33 hst ) treatment is the best H1 treatment, As for the number of productive saplings (39.90 stem) and heavy of dried grain (87.48 gram) treatment is the best H4 treatment.

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