论文部分内容阅读
一、矿质营养元素类 1.尿素 果树花前、盛花期、盛花后3周各喷一次0.2％—0.3％的尿素溶液,对提高坐果率具有良好的效果。 2.稀土 稀土用于提高坐果率,应在花前和盛花期喷布,浓度为500ppm。注意不要和碱性化肥、农药混用。 3.硼肥 果树在花蕾膨大期、盛花期和盛花后3周各喷一次0.2％—0.3％的硼砂或0.1％～0.2％的硼酸,可提高坐果率15％—40％。可与尿素混喷。 4.硫酸锌 果树花前和花期喷布0.1％的硫酸锌溶液(最好与0.1％硼酸混喷),可显著提高坐果率。
First, the mineral nutrient elements 1. Urea fruit trees before flowering, flowering, full bloom 3 weeks after spraying 0.2% -0.3% urea solution, to improve the rate of fruit set has a good effect. Rare earth rare earth used to improve the rate of fruit setting should be sprayed in the flowering and flowering before and at a concentration of 500ppm. Be careful not to mix with alkaline fertilizers and pesticides. 3. Boron fertilizer fruit trees in the bud infancy, full bloom and full bloom after 3 weeks spray 0.2% -0.3% borax or 0.1% to 0.2% boric acid can improve fruit setting rate of 15% -40%. Can be mixed with urea spray. 4. Zinc sulfate fruit trees and flowering before flowering 0.1% zinc sulfate solution (preferably mixed with 0.1% boric acid spray), can significantly improve the rate of fruit set.