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为探明超高产大豆的干物质积累和需水规律。田间研究了975(W1),1 575(W2),2 175(W3),2 775(W4)m3·hm-2共4种滴水量处理对中熟大豆品系10-4叶面积指数分布、干物质积累分配和产量的影响。结果表明:随着滴水量的增加,明显提高开花至成熟期间0~100 cm土层的含水量;增大主茎6~15节叶面积、群体中上部叶面积指数和群体光合势;显著增加总干物质积累量,W4和W3处理总干物质积累量分别较W1增加了44.8%和34.7%;增加植株6~16节位荚数、腔数和粒数,显著增加产量,W4和W3处理产量分别为6 404.7和6 082.6 kg·hm-2,分别较W1增产27.6%和21.2%。新疆伊宁地区大豆获得6 000.0 kg·hm-2产量,其生育期间田间适宜总滴水量为2 175~2 775 m3·hm-2,最大叶面积指数5.15~5.46,总干物质积累量13 500.0~14 514.0 kg·hm-2,经济系数为0.39。
To find out the law of dry matter accumulation and water requirement of super-high yield soybean. Field experiments were conducted to study the leaf area index distribution of medium-sized soybean lines 10-4 with 4 drip irrigation treatments of 975 (W1), 1575 (W2), 2 175 (W3) and 2775 (W4) m3 · hm- The impact of material accumulation and distribution and output. The results showed that with the increase of drip irrigation, the water content of 0-100 cm soil layers from flowering to maturity was obviously increased, the leaf area of main branches from 6 to 15, the upper leaf area index and photosynthetic potential of population increased significantly The total dry matter accumulation, total dry matter accumulation of W4 and W3 increased by 44.8% and 34.7% respectively compared with W1; the number of pods, cavity number and grain number of 6-16 nodes were increased, the yield of W4 and W3 was significantly increased The yields were 6 404.7 and 6 082.6 kg · hm-2, respectively, which increased by 27.6% and 21.2% respectively compared with W1. Xinjiang Yining soybean yield 6 000.0 kg · hm-2, the optimum amount of drip irrigation in the field during the growing period of 2 175 ~ 2775 m3 · hm-2, the maximum leaf area index 5.15 ~ 5.46, the total dry matter accumulation of 13 500.0 ~ 14 514.0 kg · hm-2, the economic coefficient is 0.39.