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对杂交水稻塑盘旱育秧抛栽和塑盘旱育秧手栽两种栽培方式进行了系统比较。结果表明 ,手栽比抛栽增产 8.58%,达显著水平。增产的途径是大穗。增产的原因是 :手栽植株田间分布规律而均匀 ,改善了田间小气候 ,个体发展均衡 ,协调了群体与个体的矛盾 ;手栽植株生理代谢旺盛 ,N、P、K含量高 ,前期具有明显的营养优势 ,吸收的 N、P、K多、吸收比率大 ,后期具有明显的物质分配优势 ,经济系数大。
A systematic comparison was made between the two cultivation methods of hybrid rice paddy dry cultivation seedling throwing and plastic tray dry cultivation seedling planting. The results showed that the yield of hand-planting was 8.58% higher than that of throwing-planting, reaching a significant level. The way to increase production is big spike. The reason for the increase was that: the field distribution of hand-planted plants was uniform, the microclimates in the field were improved, the individual development was balanced, the contradiction between groups and individuals was coordinated, the physiology metabolism of hand-planted plants was high, the contents of N, P and K were high, Nutritional advantages, absorption of N, P, K, the absorption rate, the latter has obvious advantages of material distribution, economic coefficient.