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大豆生产受多种因素达响，茬口即是影响因素之一。我们在赵光农场对小麦、甜菜茬口上的大豆产量进行了分析研究。1造地选赵光农场十九队6号上区的小麦茬20shin’，甜菜茬已ohm’，均为秋起垄。春季当土壤化冻scm深时，用镇压器压一遍，以利士田保墒。2种予处理大豆品种选北87-9
Soybean production by a variety of factors, stubble is one of the influencing factors. We at Zhao farm on the wheat, beet stubble on the soybean production were analyzed. A selection of land-making Zhao Guang farm nineteen teams on the 6th district of wheat stubble 20shin ’beet has ohm’, are autumn ridge. Spring soil thaw scm deep, pressure with the pressure again, to benefit Tian field moisture. Two kinds of pre-treatment of soybean varieties selected 87-9 North