论文部分内容阅读
1花前追肥梨树在开花前14～21d追肥,对开花坐果都有好处,用肥量占全年总肥量的10%～20%。花前期追肥可提高花芽质量,并满足开花所消耗的营养,提高坐果率。可于花前15d施入以复合肥加尿素为主的速效肥,因为梨树开花授粉、受精、坐果都要求氮很多,一般成年树0.5～1.0kg/株,树势弱的树可加尿素1～2kg/株,施肥量应占全年的10%～20%。
1 Pear topdressing Pear before 14 ~ 21d flowering top dressing, fruit flowering is beneficial to the total amount of fertilizer accounted for 10% to 20% of the total. Pre-flower topdressing can improve the quality of flower buds, and to meet the flowering of nutrients consumed to improve the rate of fruit set. 15d before flowering can be applied to compound fertilizer plus urea-based quick-effect fertilizer, pear flowering pollination, fertilization, fruit setting requires a lot of nitrogen, the general adult tree 0.5 ~ 1.0kg / plant trees weak trees can be added urea 1 ~ 2kg / plant, the amount of fertilizer should account for 10% to 20% of the whole year.