System of rice intensification (SRI) together with appropriate nutrient management holds promise in increasing rice productivity with micronutrient enriched grains. Trials were conducted to investigate the performance of SRI vis-à-vis conventional management practices (CMP), both with either integrated nutrient management (INM) or organic sources of nutrients. Grain yields were consistently higher under SRI (34.6%) than with CMP under the same nutrient management system. At the same time, yields under INM were higher than for those with organic fertilization. There were significant differences among treatment combinations also; both SRI–INM and SRI–organic out-yielded CMP–INM and CMP–organic, respectively, by 43.8 and 24.8%. Further, SRI with organic sources produced 18.6% higher grain yield than CMP with INM, which showed a way to achieve higher output of rice grain grown organically. Significant improvements were observed with SRI in root growth, xylem exudation rate, LAI, canopy light interception, SPAD chlorophyll level, photosynthesis rate, and grain-filling rate. The improvements in physiological functioning evidently contributed to better grain formation and yield under SRI management. Both the rice grains and straw obtained with SRI methods contained more N, P, K, Fe, Mn, Cu, and Zn than grains and straw produced with CMP. SRI methods not only raised rice productivity, but also enhanced nutrient uptake due to greater root growth and activity, and improved the nutritional content and quality of produced grain.

中文翻译：

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作物和养分管理对水稻生长和产量，养分吸收和含量的影响

水稻强化系统（SRI）与适当的养分管理相结合，有望在富含微量营养素的谷物上提高水稻的生产率。试验进行了调查SRI的性能可见- à -可见常规管理实践（CMP），既可以采用综合营养管理（INM），也可以采用有机养分来源。在相同的养分管理系统下，SRI下的谷物产量始终高于CMP（34.6％）。同时，INM的产量高于有机肥。治疗组合之间也存在显着差异。SRI–INM和SRI–organic的产量分别比CMP–INM和CMP–organic高出43.8和24.8％。此外，使用有机源的SRI的谷物单产比使用INM的CMP高18.6％，这表明可以实现有机种植的水稻籽粒更高的产量。SRI在根系生长，木质部渗出率，LAI，冠层光截留率，SPAD叶绿素水平，光合作用率和籽粒填充率方面均有显着改善。在SRI管理下，生理功能的改善显然有助于改善谷物的形成和产量。通过SRI方法获得的米粒和稻草均比CMP生产的米粒和稻草包含更多的N，P，K，Fe，Mn，Cu和Zn。SRI方法不仅提高了稻米的生产率，而且由于更大的根部生长和活性而提高了养分吸收，并改善了谷物的营养含量和质量。