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以高产大豆品种杂交豆1号和吉育88为试验材料,采用有机无机肥结合、大量元素与微量元素结合,底肥、口肥、追肥和叶面喷肥相结合的超高产栽培模式,研究吉林中部超高产大豆的生育特征和营养特性。结果表明:吉林中部超高产大豆产量可以达到4 650 kg·hm-2以上,最大叶面积指数大于5.4;全生育期氮、磷、钾最大积累量分别不低于315.7,40.7,169.9 kg·hm-2;干物质积累量最大值10 115.5~11 599.2 kg·hm-2,干物质日积累最大值134.2~141.9 kg·hm-2·d-1,开花后吸肥量增大,吸肥强度增大,可见,提高大豆生育中后期氮、磷、钾的供应强度是大豆超高产的必要条件。
Taking the high-yielding soybean variety hybrid beans No.1 and Jiyu 88 as experimental materials, the super-high-yielding cultivation mode combining organic and inorganic fertilizers, combining a large number of elements and trace elements, combining the bottom fertilizer, the mouth fat fertilizer, the topdressing fertilizer and the foliar spray fertilizer was studied, The Growth Characteristics and Nutritional Characteristics of Super Middle East Soybean in Central China. The results showed that the yield of super high yielding soybean in central Jilin could reach above 4650 kg · hm-2 and the maximum leaf area index was above 5.4. The maximum accumulation of nitrogen, phosphorus and potassium during the whole growth period was not less than 315.7, 40.7 and 169.9 kg · hm -2; the maximum value of dry matter accumulation was 10 115.5 ~ 11 599.2 kg · hm-2, the maximum value of dry matter accumulation was 134.2 ~ 141.9 kg · hm-2 · d-1, the amount of fat absorption increased after flowering, Increase, we can see that to improve the supply of nitrogen, phosphorus and potassium in the late growing stage of soybean is a necessary condition for the super high yield of soybean.