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果园生草制就是有计划地在果园种植多年生豆科植物、禾本科植物或牧草,并定期刈割,覆盖地面,使其自然分解腐烂,起到改土增肥作用。果园生草是保护土壤资源、保持生态平衡的一种土壤管理制度,除具有改良土壤、增加果园生物量等优点外,还具有如下作用。 1、利用土壤过剩的水分和养分。果园土壤中过剩的水分和营养被草吸收而自然减少,有利于果树枝条成熟,并能减轻果实苦痘病和水心病的发生。 2、可以改善果园土壤水分和小气候。据资料介绍,0～20厘米土层水分含量生草区比清耕区高8%
Orchard grass is planted in the orchard planted perennial legumes, grasses or pastures, and regularly cutting, covering the ground, to decompose and decompose naturally, to soil improvement and fertilizer. Grass planting in orchard is a soil management system that protects soil resources and maintain ecological balance. It has the following functions besides improving soil and increasing orchard biomass. 1, the use of excess soil moisture and nutrients. Excess water in the orchard soil and nutrition is naturally absorbed by the grass to reduce, is conducive to fruit tree branches mature, and can reduce fruit bitter pox disease and water heart disease. 2, can improve orchard soil moisture and microclimate. According to information, 0 ~ 20 cm soil moisture content of grass area than the clear farming area 8%