１９９３年黑龙江省引进大豆窄行密植栽培技术，并于１９９６年列为省重点课题，并归入国家重中之重课题，通过２年多试验，无论是垄作窄行密植栽培还是平作窄行密植栽培，限制大豆产量的主要因素是品种。黑龙江省农垦总局红兴隆分局科研所于１９９８年２月通过黑龙江省农... Heilongjiang Province in 1993 to introduce narrow row of soybeans planting technology, and in 1996 as a provincial key issues, and included in the country’s most important topics, through more than two years of trials, whether it is narrow row of ridge planting close planting or flat for narrow row close planting Cultivation, the main factor limiting soybean production is variety. Heilongjiang Provincial Land Reclamation Bureau Hongxinglong Branch Scientific Research Institute in February 1998 through Heilongjiang Province agricultural ...