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Position: Home > Articles > PRELIMINARY STUDIES ON THE PHYSIOLOGICAL PARAMETERS AND CULTURAL MEASURES FOR SOYBEAN PLANTS PRODUCING A YIELD OF 450 JIN PER MU Soybean Science 1982 (2) 131-140

大豆亩产450斤的生理参数及栽培措施初探

作  者：
董钻;祁明楣;罗文春;邹仁民;孙卓韬
单  位：
沈阳农学院
摘  要：
本文根据1977—1981年田间试验结果提出了大豆亩产450斤的10项生理参数并简要涉及了几项基本栽培措施。讨论了亩产450斤的大豆群体的叶面积指数动态和最大叶面积指数,平均净光合率、总光合势,生物产量、器官平衡和经济系数、生物产量的日增长量和最大增长量、CO_2同化量、需水量、土壤NPK带出量、光能利用率。大豆亩产450斤是目前黑、吉、辽大豆主产区可以普及的高产指标。要实现这一指标,必须注意种植密度,建立合理的群体结构,施用有机肥、过磷酸钙,还要适量地施用氮肥,在干旱时则要灌水。
译  名：
PRELIMINARY STUDIES ON THE PHYSIOLOGICAL PARAMETERS AND CULTURAL MEASURES FOR SOYBEAN PLANTS PRODUCING A YIELD OF 450 JIN PER MU
作  者：
Dong Zuan Qi Mingmei Lo Wenchun Zou Renmin Sun Zhuotao(Shenyang Agricultural College)
摘  要：
Based on the results of field experiments from 1977 to 1981, ten physiological parameters and cultural measures for soybean plants producing a yield of 450 jin per mu were discussed in the paper. These parameters are as follows: the maximum leaf area index (LAI) at the period of pod setting ranges from 4.23 to 6.70, with the optimum level being at 5-6. The duration when LAI is greater than 4 lasts for 40 days or so. The average net photo-synthetic rate of soybean plants is about 4 grams C02/m2 leaf area.day, which is not significantly correlated with the seed yield. The total photosyn-thetic potential covers a wide range of about 140000 to 220000m2.day. The yield of biological yield should be above 1500 jin per mu, while the harvest index no less than 30%. The average increase in biological yield per day is 11.54 jin, the maximum of which should reach 23.08 jin. The population of soybean plants per mu needs 3750 jin of CO2 in assimilation, absorbs 506 tons of water, 37.31 jin of N, 7.38 jin of P2O3 and 16.74 jin of K2O. The utilization efficiency of light energy should not be less than 0.8% (The utilization coefficient of physiological radiation should not be less than 1.63%). In Heilongjiang, Jilin and Liaoning provinces, a yield of 450 jin per mu can be regarded as a high-yielding level which is universally attainable. The cultural measures which should be taken note of are: determination of proper planting density, establishment of rational population structure, application of organic manure, calcium superphosphate and a small quantity of nitrogen fertilizer as well as irrigation when the soil is dry.

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