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Application of symmetric Ploughs for Tillage on Wetland Paddy Fields

Journal of Agricultural Science and Technology(A) 2020年第4期10卷 228-235页

作者： Mas Ade Moetangad Kramadibrata Wahyu Kristian Sugandi Asep Yusuf Dwi Rustam Kendarto Lab of Agricultural Machinery and Equipment Dept of Agriculture and Biosystem Engineeringthe Faculty of Agro-Industrial Technology the University of PadjadjaranBandung 40600Indonesia 2.Lab of Soil and Water EngineeringDept of Agriculture and Biosystem Engineeringthe Faculty of Agro-Industrial Technologythe University of PadjadjaranBandung 40600Indonesia

Impertinent uses of moldboard plows for tillage on wetland paddy soils,as far more than a century,caused damage to its important hardpan layer of 20-30 cm soil depth that led to some extent,the decrease of rice production than it should have *** current study has been carried out to repair that damage to regain the“lost”of paddy yields by using the designed flat-symmetric plow that has a lift angle of 29°-30°.It is towed by a hand tractor of 12 horsepower(HP)at a travel speed of 1.11 m/s and a working depth of 10 cm in three blocks of a wetland paddy field in Bandung Sub-district of West-Java,*** results observed from the formed plow sole of 10-15 cm depth underneath after 3rd-time operations of the plow on the same track,indicated that there was a relatively small decrease of moisture content(MC)around 0.182%,as well as increases of cone index(CI)and bulk density(BD)around 0.172%and 0.171%,*** plow was able to maintain,generate and stimulate the formation of hardpan right underneath the plow *** was due to the improvement of hardpan physical-mechanical properties and would be more significant after frequent tillage using that ***,there is a chance to develop a tillage method in the development of an ideal wetland paddy cultivation system throughout Indonesian wetland paddy fields.

关键词： symmetric-flat plow hardpan ideal wetland paddy cultivation.

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