[1]ZHANG Yongqiang,ZHANG Na,LI Yajie,et al.Effect of Drip Irrigation Amount on Water Consumption Characteristics and Dry Matter Accumulation and Transformation of Summer Soybean in North Xinjiang[J].Research of Soil and Water Conservation,2016,23(02):111-116.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 02
Page number:
111-116
Column:
Public date:
2016-04-28
- Title:
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Effect of Drip Irrigation Amount on Water Consumption Characteristics and Dry Matter Accumulation and Transformation of Summer Soybean in North Xinjiang
- Author(s):
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ZHANG Yongqiang, ZHANG Na, LI Yajie, PENG Jianglong, SU Lili, XU Wenxiu
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College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, China
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- Keywords:
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drip irrigation quantities; summer soybean; water consumption characteristics; dry matter accumulation and transformation
- CLC:
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S565.1
- DOI:
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- Abstract:
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The field experiment was conducted by setting four drip irrigation treatments including 3 000 m3/hm2(W1),3 600 m3/hm2 (W2),4 200 m3/hm2 (W3) and 4 800 m3/hm2(W4) to study the effects of different drip irrigation on water consumption characteristics, dry matter accumulation and transformation of summer soybean following randomized block design. The results showed that with the increase of drip irrigation quantities, the water content in 0—60 cm soil laye increased greatly at each growth stage of summer soybean, and the differences of soil moisture in 0—40 cm soil layer was more obviously, but little difference was observed in 40—60 cm soil layer. However, stored soil water consumption decreased while the total water consumption increased. The dry matter accumulation showed the S-shaped curve; treatment W3 had the best of the continued days of dry matter rapid accumulation(△t), the maximum increase rate of dry matter(Vm) and the total dry matter accumulation. Results from correlation and regression analysis methods indicated that there were positive correlations between yield and dry matter translocation before and after anthesis, especially the dry matter translocation after anthesis had the significant contribution to yield, in addition, all of the dry matter translocation after anthesis, its ration and contribution to grains decreased in the order: W3 > W4 > W2 > W1. The treatment W3 had the highest yield of 3 741.23 kg/hm2, which was 30.42%,13.98% and 8.44% higher than the other treatmensts, respectively, reaching the significant difference level (p < 0.05). Water use efficiency decreasd in the order: W3 > W4 > W2 > W1, the irrigation water use efficiency had no significant difference between treatment W1, W2 and W3, but all of them were higher than treatment W4.