摘要
以连作3年辣椒的土壤为研究对象,通过增施有机堆肥,测定辣椒连作土壤pH、电导率、有机质、有机碳、全碳、养分含量和酶活性的变化特点,探讨有机堆肥用量对连作辣椒土壤化学性状的改良效果。结果表明:有机堆肥1.5×10^(4)kg/hm^(2)与复合肥7.5×10~2 kg/hm^(2)混合施入辣椒连作土壤后,土壤pH较对照提高了0.89(P<0.05),土壤有机质较对照土壤提高了5.25 g/kg(P<0.05),矿质营养元素氮、磷、钾、钙、镁、硅含量均显著增加(P<0.05),脲酶、蛋白酶、酸性磷酸酶、氧化氢酶的活性均显著增加(P<0.05)。综上,增施有机堆肥改善了土壤化学性状,提高了土壤肥力和土壤酶活性,能够有效改良辣椒连作土壤。
Taking the soil of continuous cultivation of chili peppers for 3 years as the research object,the changes in pH,electrical conductivity,organic matter,organic carbon,total carbon,nutrient content,and enzyme activity of the soil were measured by increasing a mixture of organic fertilizer and composite fertilizer to study the chemical properties of continuous cultivation chili peppers.The results showed that after applying 1.5×10^(4)kg/hm^(2)of organic compost and 7.5×10^(2) kg/hm^(2)of composite fertilizer to chili pepper continuous cropping soil,the soil pH increased by 0.89,and the soil organic matter increased by 5.25 g/kg,compared to the control soil(P<0.05).The content of nutrient elements nitrogen,phosphorus,potassium,calcium,magnesium,and silicon significantly increased(P<0.05),and the activities of urease,protease,acid phosphatase,and catalase were significantly increased(P<0.05).In conclusion,there was a positive correlation between the improvement effect of soil chemical traits and the amount of organic compost,increasing the application of organic compost improved soil chemical properties,enhanced soil fertility,and increased soil enzyme activity,which could effectively improve the continuous cropping soil of chili peppers.
作者
宋世霞
刘瑞
徐福才
刘巍
刘丹
刘鹏
艾辛
SONG Shi-xia;LIU Rui;XU Fu-cai;LIU Wei;LIU Dan;LIU Peng;AI Xin(College of Horticulture,Hunan Agricultural University/Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding,Ministry of Education/Key Laboratory for Vegetable Biology of Hunan Province,Changsha Hunan 410128;Rucheng County Rural Agriculture Bureau,Luyang Hunan 424199;Hunan Aosheng Agricultural Development Limited Liability Company,Changsha Hunan 410600)
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2024年第10期9-15,共7页
Soil and Fertilizer Sciences in China
基金
郴州国家可持续发展议程创新示范区建设专项(2019sfq30)。
关键词
有机堆肥
连作土壤
酶活性
organic fertilizer
continuous cropping soil
enzyme activity
