河南农业科学2017，Vol.46Issue(7)：49-56,8.DOI:10.15933/j.cnki.1004-3268.2017.07.009
柠条堆肥和改良剂对黄瓜连作土壤理化性质、酶活性和微生物数量的影响
Effects of Caragana Compost and Modifier on Soil Physicochemical Property, Enzyme Activities and Microbial Quantity under Continuous Cropping of Cucumber
摘要
Abstract
In order to solve the problem of continuous cropping obstacle and high degree of alkalization of protected soil in Ningxia,the soil of continuous cropping cucumber for 10 a was taken as the study object,the effects of the application of chicken manure (CK),chicken manure + organic acid modifier (T1),Caragana compost containing nitrogen equivalent to chicken manure compost (T2),Caragana compost containing nitrogen equivalent to 75 ％ of chicken manure (T3),Caragana compost containing nitrogen equivalent to 50％ of chicken manure (T4),Caragana compost containing nitrogen equivalent to chicken manure compost + organic acid modifier (T5),Caragana compost containing nitrogen equivalent to 75％ chicken manure compost + organic acid modifier (T6),Caragana compost containing nitrogen equivalent to 50％ chicken manure compost + organic acid modifier (T7) on the soil physicochemical property,enzyme activity and microbial quantity.The results showed that on the whole,the application of organic acid modifier could reduce soil pH value,and increase soil EC and total N,available N and available K contents,enzyme activities and microbial quantity.At transplant recovering stage,the soil pH value of T1,T5 and T6 treatments decreased significantly compared with CK;the soil EC of T1 and T7 treatments were significantly higher than that of CK;T6 treatment had the highest soil total N content,which increased by 106.61％ compared with CK,followed by T5 treatment;T6 treatment had the highest content of available N,which increased by 42.78％ compared with C K,followed by T7 treatment;T7 treatment had the highest content of available K in soil,and increased by 103.54％ compared with CK,followed by T1 and T6 treatments;the soil urease activity of T6 treatment was significantly higher than that of CK;the activities of sucrase and phosphatase of T6 and T7 treatments were higher than those of CK;the catalase activity of T7 and T1 treatments were significantly higher than that of CK;T5 treatment had the highest bacteria number,followed by T7 treatment,which were significantly higher than that of CK;the number of actinomycetes of T7 treatment was the highest,followed by T2 and T6 treatments,which were significantly higher than that of CK;the number of soil fungi of T1 treatment was the highest,followed by T7 and T6 treatments,which were significantly higher than that of CK.In full fruit period,T6 treatment had the lowest soil pH value,followed by T7 treatment,which were significantly lower than that of CK;T6 treatment had the highest soil EC value,followed by T1 and T7 treatments,which were significantly higher than that of CK;T6 treatment had the highest content of available K in soil,followed by T7 treatment,which were significantly higher than that of CK;soil urease activities of T1 and T7 treatments were the highest,followed by T6 treatment,which were significantly higher than that of CK;soil invertase activity of T7 treatment was higher,and phosphatase activities of T6 and T7 treatments were the highest,which were significantly higher than those of CK;the actinomycetes number of T6 treatment was the highest,followed by T7 treatment,which were significantly higher than that of the other treatments;T6 treatment had the highest amount of soil fungi,T5 treatment had the highest number of soil bacteria,followed by T6,T7 treatment,which were significantly higher than those of CK.At harvest period,T5 treatment had the highest soil total nitrogen content,followed by T7 treatment,which were significantly higher than that of CK;the available nitrogen content of T7 and T3 treatments were higher than that of CK;soil invertase activity of T1 treatment was the highest,followed by T7 treatment,which were significantly higher than that of CK;soil urease and catalase activities of T6 and T7 treatments were not significantly different from those of CK;T7 treatment had the highest number of soil bacteria,followed by T6 treatment,which were significantly higher than that of CK;the fungi number of T6 treatment was the highest,followed by T7 treatment,which were significantly higher than that of CK;actinomycetes number of T5 and T7 treatments were higher,followed by T6 treatment,which were significantly higher than that of CK.In summary,T6 and T7 treatments with Caragana compost and organic acid modifier could effectively regulate soil physicochemical property,increase soil nutrient content,enzyme activity and microbial quantity,comprehensively taking into account of the cost,the best treatment was T7.关键词
黄瓜/连作土壤/有机酸性改良剂/堆肥/土壤质量Key words
cucumber/continuous cropping soil/organic acid modifier/compost/soil quality分类
农业科技引用本文复制引用
刘馨,许帆,祁娟霞,张亚萍,张雪艳..柠条堆肥和改良剂对黄瓜连作土壤理化性质、酶活性和微生物数量的影响[J].河南农业科学,2017,46(7):49-56,8.基金项目
国家自然科学基金项目(31460531) （31460531）
国家科技支撑计划项目(2014BAD05B02) （2014BAD05B02）
自治区国内引才312计划 （）
