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农作物单位面积产量与田间生育期间群体结构直接有关。研究大豆栽培技术,要先弄清楚大豆产量与群体结构关系。1982～83年通过全省主产区大豆生产调查及大豆种植密度试验,初步明确了在我省一般地区自然条件下及技术水平的大豆产量及其合理的群体结构,现根据两年试验结果,论述我省大豆群体结构问题。 一、试验经过及方法 试验在贵阳滥泥沟我院进行(位于北纬26°04′、东经106°07′,海拔1140米,常年均温15.6℃年降水量1200mm左右,无霜期289天左右)。1982年在55号耕地进行“大豆种植密度试验”,用徐豆2号品种,实际密度从13
The yield per unit area of crops is directly related to the group structure during field growth. Soybean cultivation techniques, we must first figure out the relationship between soybean production and population structure. From 1982 to 1983 through the main producing areas of the province soybean production survey and soybean planting density test, initially identified in the general area of our province natural conditions and technical level of soybean production and reasonable population structure, according to two years of test results, Discusses the soybean population structure problem in our province. First, the test and method tests were carried out in our hospital in Laoliuou, Guiyang (located at latitude 26o 04 ’, longitude 106o 07’, elevation 1140m, annual average temperature 15.6 ℃, annual precipitation 1200mm, frost-free period 289 days). In 1982 on the 55th cultivated land “soybean planting density test”, with Xu bean 2 varieties, the actual density from 13