Experimental results and criticism in the study of plough plow to loosen dirt and fertilizer plants, fresh pineapple plantations. In the research and Development Center for agricultural inputs, Khon Kaen, on the ground that satuek series LP on soil dirt contamination sand ruan. 35-45 cm (the Plow pan) begins to grow pineapple, rengdok May 14, 2010 May 6, 2011 to June 30, when harvested October 21, 2011 to report on the results of the experiment were as follows:
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