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首页> 外文期刊>Pakistan journal of botany >IMPACT OF NO-TILL AND CONVENTIONAL TILLAGE PRACTICES ON SOIL CHEMICAL PROPERTIES
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IMPACT OF NO-TILL AND CONVENTIONAL TILLAGE PRACTICES ON SOIL CHEMICAL PROPERTIES

机译：无耕作和常规耕作实践对土壤化学性质的影响

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摘要

There is a global concern about progressive increase in the emission of greenhouse gases especially atmosphere CO2. Anincreasing awareness about environmental pollution by CO2 emission has led to recognition of the need to enhance soil Csequestration through sustainable agricultural management practices. Conservation management systems such as no-till (NT)with appropriate crop rotation have been reported to increase soil organic C content by creating less disturbed environment. Thepresent study was conducted on Vanmeter farm of The Ohio State University South Centers at Piketon Ohio, USA to estimatethe effect of different tillage practices with different cropping system on soil chemical properties. Tillage treatments werecomprised of conventional tillage (CT) and No-till (NT).These treatments were applied under continuous corn (CC), cornsoybean(CS) and corn–soybean-wheat-cowpea (CSW) cropping system following randomized complete block design. No-tilltreatment showed significant increase in total C (30%), active C (10%), and passive salt extractable (18%) and microwaveextractable C (8%) and total nitrogen (15%) compared to conventional tillage practices. Total nitrogen increased significantly23 % in NT over time. Maximum effect of no-till was observed under corn-soybean-wheat-cowpea crop rotation. Thesefindings illustrated that no-till practice could be useful for improving soil chemical properties.
机译：全球对逐步增加的温室气体尤其是氛围的普遍担忧。有关CO2排放的环境污染的一种意识导致通过可持续的农业管理措施来承认加强土壤陪审团的必要性。据报道，保护管理系统，如没有适当的作物旋转，以通过产生更令人不安的环境来增加土壤有机C含量。在美国Piketon俄亥俄州俄亥俄州南部中心的凡尔米特农场进行了实验研究，以估计不同耕作实践与不同种植系统对土壤化学性质的影响。常规耕作（CT）和No-Till（NT）的耕作治疗。在随机完整块设计之后，在连续玉米（CC），玉米酰基（CS）和玉米 - 大豆 - 小麦 - 豇豆（CSW）种植系统下施用该治疗方法。与常规耕作实践相比，No-Tilltreatmment显示出总C（30％），活性C（10％）和被动盐可提取的（18％）和微过滤的C（8％）和总氮气（15％）的显着增加。随着时间的推移，总氮在NT中增加了23％。在玉米大豆小麦 - 豇豆作物旋转下观察到无直接效果。这些挑解说明了没有直到实践对改善土壤化学性质有用。

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