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近年来,随着商品鸡养殖产业化发展,鸡粪作为养殖业的副产品,以其高肥效、低成本的优点,大量投入果园,成为果树生产中的一种新兴有机肥料。 但是,因鸡粪施用方法不当,特别在高温季节果园地面撒施的,有相当一部分果园中已出现肥害,严重果园病株率达25％～30％。主要症状为:叶片失绿变黄,顶端叶片、叶尖灼烧状,根颈部皮层呈褐色水渍状腐烂,地下0～10厘米土层细根横断面变褐色失去吸收功能或死亡。
In recent years, with the development of commercial chicken breeding industry, chicken manure as a by-product of aquaculture, with its high efficiency, low cost advantages, a large number of investment into orchards, fruit trees in the production of a new organic fertilizer. However, due to improper application of chicken manure, especially in the hot season orchard ground sprinkle, a considerable part of the orchard has fat fertilizer, severe orchard disease rate of 25% to 30%. The main symptoms are: green leaves turn green, the top leaves, tip burning, root neck cortex brown water stain rot, 0-10 cm underground fine root cross-section brown to lose absorption or death.