中国农业大学学报2024，Vol.29Issue(12)：237-253,17.DOI:10.11841/j.issn.1007-4333.2024.12.21
粉垄耕作对土壤养分及酶活性的影响
Effects of Fenlong cultivation on soil nutrients and enzyme activities
摘要
Abstract
In response to the problems such as shallowness of land cultivation layer and compaction of deep soil layers in the arid areas of northern Ningxia,the changes of soil nutrients and enzyme activity during the entire growth period of maize under the use of Fenlong cultivation were investigated.Using traditional Fenlong cultivation(with a tillage depth of about 15 cm)as a control(CK),four treatments were set with a Fenlong depth of 30 cm(FL30),40 cm(FL40),50 cm(FL50),and 60 cm(FL60),respectively.The changes in soil nutrients(alkaline nitrogen,available phosphorus,available potassium,organic matter)and soil enzyme activity(urease,catalase,sucrase,alkaline phosphatase)at different growth stages of maize were monitored under different treatments.The results showed that:The contents of alkaline hydrolyzed nitrogen,available phosphorus,and available potassium in the soil under Fenlong cultivation were significantly higher than those of CK.The rate of decline of each nutrient content was significantly lower than that of CK,especially in the deeper soil(20 to 60 cm),where the average alkaline hydrolyzed nitrogen content increased by 16.94 mg/kg,the average available phosphorus content increased by 12.28 mg/kg,the average available potassium content increased by 10.41 mg/kg,and the average organic matter content increased by 6.34 g/kg;The content of soil catalase under Fenlong cultivation was significantly higher than that under CK,with an average increase of 0.69 mg/kg;The effect of Fenlong cultivation on the activity of urease and sucrase in the 20 to 60 cm soil layer was significantly higher than that of CK,with an average increase of 1.17 mg/(g·d)and 1.27 mg/(g·d),respectively.In conclusion,Fenlong cultivation significantly improved the key physical properties and internal environment of soil.The nutrients in the soil after Fenlong cultivation were higher than those in the original soil,and the key enzyme activities in the deep soil were activated.Based on increasing the thickness of the tillage layer and loosening the soil structure,it provided a good ecological environment for crop growth.This study provides a theoretical basis for the application and promotion of Fenlong cultivation in arid areas and the sustainable development of the soil environment.关键词
粉垄耕作/玉米/土壤养分/土壤酶活性/土壤环境Key words
Fenlong cultivation/corn/soil nutrients/soil enzyme activity/soil environment分类
农业科技引用本文复制引用
杨佳鹤,何进宇,石伟业,杨青青,杨海林,李王成,何进勤,陈彦云..粉垄耕作对土壤养分及酶活性的影响[J].中国农业大学学报,2024,29(12):237-253,17.基金项目
国家重点研发计划项目(2021YFD1900601-02-04) （2021YFD1900601-02-04）
宁夏重点研发计划重大(重点)项目(2019BBF02006-01) （重点）
宁夏高等学校一流学科建设项目(NXYLXK2021A03) （NXYLXK2021A03）
