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在干旱条件下,配方施肥能让肥料合理搭配,在不利条件下,起到最好的施肥效果。1早施多施基肥西北农林科技大学教授认为,目前大多数果园有机质不到1%,部分果园甚至在0.5%以下,远远达不到丰产园的要求,因此必须增加基肥用量。专家建议,在有机质不足的条件下,对瘠薄地适当追速效氮肥,可以明显地改善叶片的光合性能,从而提高了树体光合产物的积累水平,起到了“以氮增
Under drought conditions, formula fertilizers allow a reasonable mix of fertilizers and, under unfavorable conditions, play the best fertilization effect. 1 Early application of more basic fertilizer Northwest Agriculture and Forestry University professor believes that most of the orchard less than 1% organic matter, some orchards even below 0.5%, far below the requirements of high yield garden, it is necessary to increase the amount of basal fertilizer. Experts suggest that under the condition of insufficient organic matter, appropriate nitrogenous fertilizer can notably improve the photosynthetic performance of the leaves, thus increasing the accumulation level of the photosynthetic products of trees and playing a role of ”