| Cite this article: | 李建查,潘志贤,李坤,等.干热河谷不同滴灌模式对鲜食大豆生物量分配、产量及水分利用效率的影响[J].灌溉排水学报,0,():-. |
| LI Jiancha,PAN Zhixian,LI Kun,et al.干热河谷不同滴灌模式对鲜食大豆生物量分配、产量及水分利用效率的影响[J].灌溉排水学报,0,():-. |
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| DOI： |
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| Effects of Drip Irrigation Modes on Biomass Allocation, Yield and Water Use Efficiency of Fresh Soybean in a Dry Hot Valley |
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LI Jiancha1,2,3,2, PAN Zhixian1, LI Kun1, FANG Haidong1, SHI Liangtao1, ZHANG Lei3, WANG Yandan1, HE Guangxiong1, SUN Yi1, HE Runlian1, Duan Qicai3, YUE Xuewen1
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1.Institute of Tropical Eco⁃agricultural Sciences,Yunnan Academy of Agricultural Sciences;2.China;3.Yunnan Institute of Water Resource and Hydropower Research
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| Abstract: |
| To optimize the fresh soybean drip irrigation modes, field experiments was carried out to study the effects of three drip irrigation modes: full drip irrigation without film covering (T1), full drip irrigation under film (T2) and drip irrigation controlling soil moisture (T3) on the biomass, distribution, yield and water use efficiency of fresh soybean (G1005) . The results showed that: (1) Different drip irrigation modes have a significant effect on the biomass of fresh soybean and its distribution ratio. Compared with T2, T1 treatment has significantly reduced the biomass and distribution ratio of fresh soybean pods. T3 treatment significantly increased fresh soybean pod biomass and its distribution ratio. (2) Different irrigation treatments affect the allometric scaling relationship exponent of fresh soybean biomass. Compared with T2, T3 treatment of pods -stems, pods-leaves has the same allometric scaling relationship exponent , and the allometric scaling relationship exponent of pods-roots has increased. The degree of growth of pod biomass increased; T1 treatment of pods-roots, pods-stems, pods-leaf allometric scaling relationship exponent increased, pod biomass growth degree is higher than nutrient organ biomass growth; T3 treatment of leaf-stem, leaf-root, stem and root growth index close to 1, changes the growth track of roots, stems and leaves, and promotes the balanced distribution of biomass between fresh soybean nutrients. (3) Different irrigation treatments have an impact on the yield of fresh soybean. Compared with T2, T1 treatment significantly reduced the yield of fresh soybean pods and the irrigation water utilization efficiency. The yield of T3 treatment pods did not change significantly, but the irrigation water utilization efficiency improved significantly. It shows that the T3 treatment increases the biomass distribution of pods by increasing biomass and balancing the biomass distribution among vegetative organs, thereby increasing the yield of pods and increasing the efficiency of irrigation water use. |
| Key words: dry hot valley;fresh soybean; irrigation mode;biomass allocation;water use efficiency |
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