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核桃细菌性黑斑病[Xanthomonas juglandis(Pierce)Dowson]是一种世界性病害,主要危害核桃果实,叶片,嫩梢,芽和雌花序,防治十分困难。本试验在发生细菌性黑斑病危害的核桃林下套种苕子、豌豆、蚕豆或大豆等豆科植物,发挥核桃与绿肥两种植物间种所形成的生物物理屏障作用,发挥绿肥地下有益菌群排斥核桃树病原菌的功能作用,从空间上阻断了病菌繁殖体的传播,改变核桃园生态小气候,同时利用核桃产果具有耗地力和苕子、豌豆、蚕豆、大豆等绿肥具有固氮培肥的特点,将2种作物组合在一起种植,施作3a以上,最终达到防病增产的目的。
Walnut bacterial black spot disease [Xanthomonas juglandis (Pierce) Dowson] is a worldwide disease that is mainly harmful to walnut fruits, leaves, tender shoots, buds and female inflorescences and is very difficult to control. This experiment in the occurrence of bacterial black spot disease walnut intercropping walnut, pea, broad bean or soybean and other legumes play walnut and green manure between the two kinds of plants formed by the role of biological and physical barriers to play green manure underground bacteria The group excludes the functional function of walnut tree pathogens, sterically interrupts the propagation of pathogenic bacteria and changes the ecological microclimate of walnut trees. At the same time, the utilization of walnut fruit has the effects of soil fertility and prickly heat, and the green manure such as peas, broad beans and soybean has nitrogen- The characteristics of the combination of two kinds of crops planted for more than 3a, and ultimately achieve the purpose of disease prevention and increase production.