论文部分内容阅读
一、目的:黄岩柑桔本地早品种的部分壮年树,存在着开花不结果,或着果率非常低的现象。其他栽培品种中如早桔,温州蜜柑等,要想在加强栽培管理的基础上进一步提高产量,亦应积极地从减少落果,增加着果率的措施上着手研究。1954年曾于本地早生理落果期同,喷射2,4—D的20P.P.M溶液,能增加着果率达10—20%,1958年根据柑桔开花后植物体内有机氮磷的消耗,企图从增加生长素种类,加大生长素溶液浓度和根外喷射速效氮磷肥等办法,探求防止或减少柑桔的生理落果。
First, the purpose: Huangyan Citrus local early varieties of part of the prime of life, there is no fruit flowering, or the fruit rate is very low phenomenon. In other cultivars, such as as early as oranges and mandarins of Wenzhou, if we want to further increase the output on the basis of intensified cultivation and management, we should also start with measures to reduce fruit drop and increase the fruit rate. In 1954, at the same time, the rate of fruiting was increased by 10-20% with the spraying of 2,4-D 20P.PM solution. In 1958, according to the consumption of organic nitrogen and phosphorus in plants after the flowering of citrus, From the increase of the types of auxin, increase the concentration of auxin solution and quick-release nitrogen and phosphorus spray and other methods to explore to prevent or reduce the physiological decline of citrus fruit.