Straw and Green Manure Return Can Improve Soil Fertility and Rice Yield in Long-Term Cultivation Paddy Fields with High Initial Organic Matter Content.

Comprehensive Analysis of Rice Yield and Its Components, Growth Index, and Topsoil Properties The further linear regression analysis on a logarithmic scale showed that effective panicles ( Figure 5 a) had a highly significant positive effect on the yield ( p < 0.001) and the seed setting rate ( Figure 5 c) had a significant positive effect on the yield ( p < 0.05), while the filled grain number per panicle and 1000-grain weight ( Figure 5 b,d) had no significant effects on the yield ( p > 0.05).

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