生草果园土壤水分的变化

Changes of Soil Moisture in Grass Orchard

果园生草是现代苹果生产中普遍提倡的技术措施之一,也是目前最有争议的技术。为了掌握生草果园土壤水分的变化规律,我们通过不同时间对生草果园土壤不同土层水分含量进行测试,发现生草果园地表湿润是以消耗深层土壤水分为代价的。苹果树为深根性作物,深层土壤水分的减少势必影响树体正常生长结果。在降水量少、没有浇水条件的果园不适宜进行生草栽培,应以清耕栽培为主,以集中水分供给,保证树体健壮生长,促进产量提高,提升苹果生产效益。

Orchard grass growing is one of the technical measures widely advocated in modern apple production,and it is also the most controversial technology at present. In order to master the change law of soil water in grass orchard,we tested the water content of different soil layers in grass orchard at different times,and found that the surface moisture of grass orchard is at the cost of consuming deep soil water. Apple trees are deep-rooted crops. The reduction of deep-seated soil moisture is bound to affect the normal growth and fruit of trees. It is not suitable to carry out grass cultivation in orchards with less precipitation and no watering conditions. It should focus on clean cultivation and concentrate water supply to ensure the robust growth of trees,promote the increase of yield and improve the benefit of apple production.