自然生草对梨园土壤理化性质及果实品质的影响

Effects of natural grass on soil physical and chemical properties and fruit quality in pear orchard

探究自然生草对库尔勒香梨园土壤理化性质及果实品质的影响,对比分析自然生草区与清耕区土壤理化指标、枝条和叶片矿质元素含量以及果实品质指标等的变化差异,为改善库尔勒香梨果实品质提供科学依据。结果表明:自然生草栽培可改善库尔勒香梨园土壤理化性质,提高土壤含水量和有机质、碱解氮、速效磷、速效钾、全氮、全钾、全磷含量,降低土壤pH值和土壤电导率;可提高枝条和叶片的全氮、全磷、全钾含量;可改善库尔勒香梨果实品质,单果重、可溶性固形物含量、维生素C含量、糖酸比均显著提高。综合比较发现,自然生草可改变土壤理化性质,提高枝条、叶片养分含量,提升库尔勒香梨综合品质,更有利于树体的生长。

Explore the effects of natural grass on soil physical and chemical properties and fruit quality of‘Korla fragrant pear’.In this study,by comparing and analyzing the differences in soil physical and chemical indicators,mineral element content in branches and leaves,and fruit quality indicators between natural grass growing area and clear tillage area,providing scientific basis for improving the fruit quality of‘Korla fragrant pear’.The results showed that natural grass cultivation could improve the physical and chemical properties of soil in‘Korla fragrant pear’orchard,increase the soil water content,organic matter,available nitrogen,available phosphorus,available potassium,total nitrogen,total potassium and total phosphorus content,and reduce soil pH value and soil conductivity;could increase the total nitrogen,total phosphorus,and total potassium content of branches and leaves;could improve the fruit quality of‘Korla fragrant pear’,significantly increasing single fruit weight,soluble solid content,vitamin C content,and sugar acid ratio.Comprehensive comparison showed that natural grass could change the physical and chemical properties of soil,increase the nutrient content of branches and leaves,and improve the comprehensive quality of Korla fragrant pear,which was more conducive to the growth of‘Korla fragrant pear’.