Two fields of rice growth with normal methods and 3-S. The phenotypical differences are evident, much as seen with SRI.
Development of SRI for Rice Production in China Slides from a powerpoint presentation made to a workshop on SRI, held at the World Rice Research Conference, Tsukuba, Japan, November 7, 2004
Dr. Zhu Defeng
China National Rice Research Institute
Basic principles of SRI and functions Water saving, root growth, and fertilizer use efficiency Irrigation management Soil fertility Organic/chemical fertilizer Tiller growth, large panicle Sparse planting Tiller growth Younger seedlings Function Basic principle
Contributions of SRI Sustainable soil fertility Organic/chemical fertilizer Water saving Irrigation management Labor saving Sparse planting with younger seedlings Contribution Practice
Comparison of yield in SRI and check (Jiayou 99 variety), 2003 9.3 11.1 Yield (t/hm 2 ) 100.0 25.1 92.6 191 209.6 CK 119.4 25.3 91.2 222.8 215.7 SRI Relative yield(%) Grain weight (g /1000) Fertility (%) Grains (No./ panicle Panicle (No./m 2 ) TR