很多专家和科技人员的研究结果表明:在目前杂交水稻制种中高产水平下,进一步提高制种产量的最佳途径是在稳定适宜穗数的前提下主攻异交结实率。而杂交水稻的异交结实率除受父母本的花期相遇、开花习性、父母本生长发育协调发展状况等因素的影响外,植株体的营养状况也是主要原因之一。目前旨在提高植物体的营养水平和生物活性,不少科研单位相继推出了各种类型的激素类、微肥类的农用生物化学制剂,其中有的已在农业生产上得到广泛应用。为了探讨这些生化制剂对水稻制种的增产效果,我们特意进行了比较试验。 Many experts and scientists have shown that the best way to further increase the yield of hybrid rice under current high-yielding hybrid rice seed production is to focus on the rate of out-crossing and seed-setting under the premise of stabilizing the appropriate spike number. Except for the parents of the flowering encounter, flowering habits, parental development and coordination of parental development and other factors, the nutritional status of the plant body is one of the main reasons for the outcrossing rate of hybrid rice. Currently aims to improve plant nutrition and biological activity, many research institutes have introduced various types of hormones, micro-fertilizer agricultural biochemical agents, some of which have been widely used in agricultural production. In order to explore the effects of these biochemical agents on rice seed production, we deliberately conducted comparative experiments.