论文部分内容阅读
果园传统的清耕管理方式劳动强度大,土壤保水、保肥能力低,肥料投入高,而且造成冬春季节土壤裸露,易发生风沙扬尘。果园自然生草覆盖技术能够增加土壤有机质含量,改善土壤理化性质;减少土壤水分蒸发,提高果园蓄水保墒及抗旱能力;有利于天敌繁育,减少农药用量;提高大桃品质;省工、省力,降低成本,提高效益;具有良好的景观效应,减少环境污染,抑制大气扬尘。通过对北京平谷区桃园自然生草覆盖技术的调查,结果表明:果园自然生草覆盖后能够增加土壤有机质含量,增加幅度为10.40%～38.10%;能够提高大桃产量与品质,单果质量提高2.80%～5.40%,可溶性固形物增加6.80%～18.80%。
Orchard traditional Qing tillage management of labor-intensive, soil water, low fertilizer and fertilizer, fertilizer into high, but also in winter and spring soil bare, prone to wind and dust. Orchard natural grass coverage technology can increase soil organic matter content, improve soil physical and chemical properties; reduce soil water evaporation, improve orchard water storage and drought resistance; is conducive to natural enemy breeding, reduce the amount of pesticides; improve peach quality; labor-saving, labor-saving and reduce Cost, improve efficiency; has good landscape effect, reduce environmental pollution and inhibit atmospheric dust. Through the investigation of the natural grass coverage technology in Taoyuan, Pinggu District, Beijing, the results showed that the organic matter content of the orchard can be increased by 10.40% ~ 38.10% after being covered by natural grass orchard, the yield and quality of big peach can be increased, the quality of single fruit increased by 2.80% ~ 5.40%, soluble solids increased 6.80% ~ 18.80%.