论文部分内容阅读
肥床旱育增加了苗床土壤的微生物类群并提高土壤酶活性和土壤养分有效性，培育出壮根、矮化、带蘖秧苗；旱育秧移栽前后均表现出强大的生理生化优势；旱育稀植有利于协调水稻个体和群体生长，使其中期在增加有效穗的基础上，提高成穗率，促进后期高光效群体的形成，并优化群体产量的穗粒结构．试验表明，旱育秧产量主要分布在主茎和 １／０～５／０ 叶节位穗上，而对照分布在主茎和３／０～７／０ 叶节位穗上．
Fertilizer bed drought increased soil microbial flora and improve soil enzyme activity and soil nutrient availability, breeding strong roots, dwarfing, with tillering seedlings; dry seedling transplanting before and after showed strong physiological and biochemical advantages; dry cultivation Sparse planting is conducive to coordinating the growth of rice individuals and groups, so that in the mid-term increase in effective panicles, based on the increase of spike rate to promote the formation of high light efficiency groups later, and optimize the grain yield of grain structure. The results showed that the yield of dry nursery seedling was mainly distributed on the main stem and 1 / 0-5 / 0 leaf panicle spike, while the control was distributed on the main stem and 3 / 0-7 / 0 leaf panicle spike.