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- W2380492091 abstract "To examine the influence of mechanized conservation tillage(BHGZ)on soil physicochemical properties of dryland,a set of experiments compared with traditional cultivated model(CGGZ)were carried out for four years at the typical Karst region of Dafang County.The Results indicated that,with except of soil bulk density,soil porosity,capillary water capacity,organic matter,total nitrogen,alkali-hydrolyzable nitrogen,total phosphorus,available phosphorus,total potassium and available potassium within 0-20 cm soil were higher than that within 20-40 cm and these properties increased with increasing time.Within 0-20 cm soil depth,the soil organic matter,total nitrogen,total phosphorus,available phosphorus,total potassium and available potassium under the mechanization conservation tillage were 6.97%,9.13%,4.16%,9.16%,2.10% and 3.09% higher than that under traditional cultivated model respectively,while the content of alkali-hydrolyzable nitrogen was slightly lower about 4.46%.In the soil layers as high as 20-40 cm,the organic matter content,total nitrogen,total phosphorus,available phosphorus,total potassium and available potassium after four year successive mechanization conservation tillage increased by 12.58%,12.70%,7.71%,13.00%,2.90%and 6.60% respectively,while the content of alkali-hydrolyzable nitrogen reduced by 4.96%." @default.
- W2380492091 created "2016-06-24" @default.
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- W2380492091 date "2014-01-01" @default.
- W2380492091 modified "2023-09-27" @default.
- W2380492091 title "Effect of Mechanized Conservation Tillage on Soil Physicochemical Properties of Dryland in Karst Mountainous Area" @default.
- W2380492091 hasPublicationYear "2014" @default.
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