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1选择土地选择土壤肥力中等偏上,土层深厚疏松,能保证灌溉的壤土或沙壤土。前茬以小麦、玉米、打瓜、绿肥为好,忌连作,为预防病害的发生,实行4年以上轮作。2耕地和施足基肥耕地前均匀撒施腐熟的农家肥2 000~3 000kg/亩或商品有机肥3 000~4 000kg/亩,磷酸二铵30kg/亩,尿素5kg/亩,用轮式大马力深翻30cm入土。用旋耕机将地旋整两遍,达到“平、松、齐、碎、净、墒”的标准。
1 Select the land Select medium-fertile soil fertility, deep and loose soil, to ensure irrigation of loam or sandy loam. Crops to wheat, corn, melon, green manure as well, avoid continuous cropping, to prevent the occurrence of disease, the implementation of more than 4 rotation. 2 Cultivated land and Shizujian before the uniform application of decomposed manure 2 000 ~ 3 000kg / mu or commercial organic fertilizer 3000 ~ 4 000kg / mu, 30kg / mu of diammonium phosphate, urea 5kg / mu, with wheeled large Horsepower deep 30cm into the soil. With rotary tillage machine to spin twice, to “flat, loose, homogeneous, broken, net, moisture” standard.