地膜覆盖法是一种投资少、收效快、经济效益明显的一种促成栽培方法。我们于1984-1986年在本院实习果囝作了试验。一、材料和方法试验地为幼年果树行间间作,土壤为砂质壤土,pH7.5—7.8。品种为“保定鸡心”,小区面积90×350cm,重复3次,1 Mulching method is a less investment, fast, economic benefit is obvious to promote a cultivation method. We conducted experiments in our institute in 1984-1986. First, materials and methods Experimental to juvenile fruit tree intercropping, the soil is sandy loam, pH7.5-7.8. Variety of “Baoding Jixin”, the plot area of ​​90 × 350cm, repeat 3 times, 1