| 引用本文: | 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,():-. |
|
| |
|
|
| 本文已被：浏览 3062次 下载 0次 |
|
|
|
| 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 |
|
李建查,潘志贤,李坤,等
|
|
1.云南省农业科学院热区生态农业研究所;2.云南省水利水电科学研究院
|
|
| 摘要: |
| 为了优化干热河谷鲜食大豆滴灌模式,以鲜食大豆(G1005)为试验材料,采用大田试验研究不覆膜充分滴灌 (T1)、膜下充分滴灌(T2)和膜下控墒滴灌(T3)3种滴灌模式对鲜食大豆生物量及分配、产量和水分利用效率的影响。结果表明：(1)不同滴灌模式对鲜食大豆生物量及其分配比例产生显著影响,与T2相比,T1处理显著降低了鲜食大豆荚果生物量及其分配比例,T3处理显著增加鲜食大豆荚果生物量及其分配比例。(2)不同灌溉处理对鲜食大豆各部分生物量异速生长指数产生影响,与T2相比,T1处理荚果-根、荚果-茎、荚果-叶异速生长指数均增大,荚果生物量增长程度大于营养器官生物量增长量；T3处理叶-茎、叶-根、茎-根异速生长指数接近1,改变了根、茎和叶生长轨迹,促进鲜食大豆营养器官间生物量均衡分配。(3)不同灌溉处理对鲜食大豆产量产生影响,与T2相比,T1处理显著降低了鲜食大豆豆荚产量和灌溉水利用效率,T3处理豆荚产量变化不明显,但灌溉水利用效率明显提高。这表明,T3处理通过增加生物量,平衡营养器官间生物量分配,增加荚果生物量分配,进而提高荚果产量,提高灌溉水利用效率。 |
| 关键词: 干热河谷;鲜食大豆;灌溉方式;生物量分配;水分利用效率 |
| DOI： |
| 分类号:Q945.79 |
| 基金项目:云南省应用基础研究计划项目(2017FD207) |
|
| Effects of Drip Irrigation Modes on Biomass Allocation, Yield and Water Use Efficiency of Fresh Soybean in a Dry Hot Valley |
|
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
|
|
1.Institute of Tropical Eco⁃agricultural Sciences,Yunnan Academy of Agricultural Sciences;2.China;3.Yunnan Institute of Water Resource and Hydropower Research
|
| 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 |
|
|
|
|
