在农作物种植和园林果木栽培中,有一些作物是雌雄同株异花,如西瓜、黄瓜、玉米、柿树等;还有些植物是雌雄异株,如木瓜、柿树和菠菜等。为了多收果实种子,增加收成,农技人员通过生产实践,摸索出以下几种调控作物性别的方法。 一、化肥调控 多施氮肥,如碳铵、尿素等,有利于雌花分化。多施钾肥,有利于雄花分化。如对雌雄异株的苎麻多施钾肥(氯化钾或硫酸钾肥),少施氮肥,可多长雄株,雄株 In crop cultivation and garden fruit cultivation, some crops are monoecious flowers, such as watermelon, cucumber, corn, persimmon; others are dioecious, such as papaya, persimmon and spinach. In order to harvest more seeds, increase harvest, agricultural technicians through production practices, to explore the following methods to regulate the gender of crops. First, more fertilizer control Nitrogen fertilizer, such as ammonium bicarbonate, urea, is conducive to female flower differentiation. More potassium fertilizer, is conducive to male flower differentiation. Such as heterosexual ramie more potassium fertilizer (potassium chloride or potassium sulfate fertilizer), less nitrogen fertilizer can be long male, male