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宽窄行种植模式对大豆生长发育和产量的影响

Effects of Wide and Narrow Planting Patterns on Growth and Yield of Soybean

  • 摘要: 为揭示种植模式对嫩江地区大豆生长动态及产量的影响,探讨较适合该地区的田间种植模式,以黑河43大豆为试验材料,在密度相同的条件下设置7种不同种植模式,研究其对大豆不同生育时期叶面积指数(LAI)、干物质积累分配等指标及产量的影响。结果表明:种植模式对土壤含水量存在显著影响,大垄种植全生育期的土壤平均含水量高于常规垄作以及平播。在生育期内大豆叶面积指数、干物质积累量先增加后降低。垄作产量高于平作产量,行间距相同时,增加垄宽会增加大豆产量;垄宽相同时,采取宽窄行配置能增加大豆产量。灰色关联分析表明单株粒数对大豆产量影响最大。垄上四行宽窄行模式下单株荚数、单株粒数、单株粒重最大,最终籽粒产量达到3 678.15 kg·hm-2,较同为大垄栽培的大垄种小垄管、垄上四行等行距、垄上三行等行距模式分别高3.01%、5.95%和13.20%,比当前农场的种植方式65 cm常规垄播模式高7.97%。综上,本试验条件下,垄上四行宽窄行种植模式为较适合嫩江地区的田间配置方案。

     

    Abstract: In order to explore the effects of cultivation patterns on growth tendency and yield of soybean in Nenjiang, discover the best field planting patterns for the region, Heinong 43 was used as material, seven different cultivation patterns were established, and we analyzed the changing trends of leaf area index(LAI), dry matter accumulation and distribution in different growing stages and the yield. The results showed that planting patterns had significant effects on soil moisture content, the average soil moisture content of large ridge planting in the whole growth period was higher than that of conventional ridge planting and flat sowing. In the growing stages, LAI and dry matter accumulation of soybean increased firstly and then decreased. The yield of ridge tillage was higher than flat planting. With the same row spacing, increasing ridge width will increased soybean yield. And with the same ridge width, the wide-narrow row treatment could increase the soybean yield. The grey correlation analysis showed, the seeds number per plant had the greatest impact on soybean yield.Under the treament four rows of wide-narrow on the 130 cm ridge, pods number per plant, seeds number per plant, and seeds weight per plant were the best. The final yield was 3 678.15 kg·ha-1, it was 3.01%, 5.95% and 13.20% higher than large-ridge planting and small-ridge management, four rows of same row spacing on the 130 cm ridge, and three rows of same row spacing on the 110 cm ride, compared with other big ridge pattern. It was 7.97% higher than that of 65 cm conventional ridge tillage. In conclusion, under this experiment condition, four rows of wide-narrow on the 130 cm ridge was the suitable field configuration in Nenjiang.

     

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