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紫云英收割期与早稻直播期联因试验结果表明,在本地紫云英田直播中熱早籼的最适播期为4月13日,此时收割的紫云英鲜草含氮率较高,是作饲料与肥料的最佳收割期。此期直播早稻表现生育进程稳定,营养生长充足,物质积累丰富,群体结构协调,叶面积指数适中,光能利用率高,两年的成穗率、结实率及实际产量均比其他播期稳定提高。
The results showed that the optimum sowing date of live early indica rice in direct seeding was the April 13, when the nitrogen content of the fresh feed of Astragalus sinicus was higher , Is the best harvest for feed and fertilizer. The direct-seeded early rice showed stable fertility, abundant vegetative growth, abundant material accumulation, coordinated population structure, moderate leaf area index, and high light energy utilization rate. Both the rate of spike formation, seed setting rate and actual yield of the early rice were stable compared with other seasons improve.