杂交稻翻秋带蘖壮秧的增产效果分析

本文结合海南的自然条件和耕作改制的要求以及笔者多年来对杂交水稻翻秋带蘖壮秧试验的体会,分析论证海南省杂交水稻采取带蘖壮秧的必要性和可行性,探索与杂交水稻翻秋高产栽培有关的一些技术措施和规律。研究结果表明:杂交水稻翻秋栽培,带蘖壮秧能协调每亩总穗数、总粒数和结实率三者关系,是提高产量的关键。疏播匀播和足肥早管是培育带蘖壮秧的主要措施。

Effectiveness Analysis of Increasing Production of Hybrid Early Rice Planted by Using Strong Seedlings with Their Tillers in the Season of Late Rice

In the light of the requirement of natural condition,the reform of cropping system in Hainan Is land and our experince to plant hybrid early rice in the season of late rice for several years,the necessi ty and the feasibility of planting hybrid early rice by strong seedling with their tillers in the season of late rice are analysed and proved in Hainan Island.The cultivated technology and law for high produc tion are also researched on planting hybrid early rice in the season of late rice. The research results indicate that when hybrid early rice is plantes in the season of late rice,using strong seedlings with their tillers is a key to inoreasing production,which can coordinate the relation a mong the number of the total ears each mu,the number of the grains each ear and the setting percent- age.Sparse and even seeding are principal measure.