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研究了小麦秸秆还田和不同播种量对扬辐粳8号生长发育特性的影响。结果表明:扬辐粳8号耐迟播,是苏中地区理想的直播稻品种;明确用种量以67.5 kg/hm2为宜。秸秆还田优化了直播稻产量结构,提高了水稻产量;增强了直播稻的生理功能,增加结实期物质生产。讨论了高产形成的原因,并提出扬辐粳8号高产直播栽培技术。
The effects of wheat straw returning and sowing rates on the growth and development of Yangfujing 8 were studied. The results showed that Yangfunjing 8 was more suitable for delayed sowing, which was the ideal direct seeding rice variety in central Jiangsu Province. Straw returning to the field has optimized the yield structure of direct seeding rice and increased the yield of rice. It enhanced the physiological function of direct seeding rice and increased the material production in the period of direct seeding. The reasons for the high yield were discussed, and the high-yield direct seeding cultivation technique of Yangfujing 8 was proposed.