论文部分内容阅读
1、肥水管理。对确定要高接换头的园片,应按其栽植密度、树龄大小确定施肥量,基肥一般选择有机肥,每667m~2施有机肥4000千克,在采收后、落叶前尽早施入,并及时灌水。封冻前若墒情不足,一定要灌足冬水,如果未进行秋施基肥,应在春季土壤解冻后、发芽前尽早补施基肥,并在肥料中加过磷酸钙200千克/667m~2,尿素30千克/667m~2,并及时灌水。对高接树应追施化肥2-3次,前期以氮肥为主,配合磷、钾肥,后期以磷钾肥为主,配合氮肥。施肥比例一般N:P:K为1:0.5:1。 2、高接枝管理。要及时解绑并立
1, fertilizer and water management. To determine the height of the replacement of the park should be according to their planting density, age, size to determine the amount of fertilizer, the basic choice of organic fertilizer base, organic fertilizer per 667m ~ 2 4000 kg, after harvesting, And timely irrigation. If the lack of moisture before freezing, must fill enough winter water, if not autumn base fertilizer, should thaw in the spring soil, germination as soon as possible before the application of basal fertilizer, fertilizer and add superphosphate 200 kg / 667m ~ 2, urea 30 kg / 667m ~ 2, and timely irrigation. Tree should be topdressing fertilizer 2-3 times, pre-nitrogen-based, with phosphorus and potassium, phosphorus and potassium late-based, with nitrogen fertilizer. Fertilization ratio in general N: P: K is 1: 0.5: 1. 2, high grafting management. To promptly unbundled