杨恒山, 薛新伟, 张瑞富, 李金琴, 王宇飞, 邰继承, 刘晶. 灌溉方式对西辽河平原玉米产量及水分利用效率的影响[J]. 农业工程学报, 2019, 35(21): 69-77. DOI: 10.11975/j.issn.1002-6819.2019.21.009
    引用本文: 杨恒山, 薛新伟, 张瑞富, 李金琴, 王宇飞, 邰继承, 刘晶. 灌溉方式对西辽河平原玉米产量及水分利用效率的影响[J]. 农业工程学报, 2019, 35(21): 69-77. DOI: 10.11975/j.issn.1002-6819.2019.21.009
    Yang Hengshan, Xue Xinwei, Zhang Ruifu, Li Jinqin, Wang Yufei, Tai Jicheng, Liu Jing. Effects of irrigation methods on yield and water use efficiency of maize in the West Liaohe Plain[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2019, 35(21): 69-77. DOI: 10.11975/j.issn.1002-6819.2019.21.009
    Citation: Yang Hengshan, Xue Xinwei, Zhang Ruifu, Li Jinqin, Wang Yufei, Tai Jicheng, Liu Jing. Effects of irrigation methods on yield and water use efficiency of maize in the West Liaohe Plain[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2019, 35(21): 69-77. DOI: 10.11975/j.issn.1002-6819.2019.21.009

    灌溉方式对西辽河平原玉米产量及水分利用效率的影响

    Effects of irrigation methods on yield and water use efficiency of maize in the West Liaohe Plain

    • 摘要: 为研究西辽河平原3种主要灌溉方式(浅埋滴灌、膜下滴灌和传统畦灌)对玉米产量和灌溉水利用率的影响,进而为生产上推广适宜节水灌溉方式提供理论依据,2017—2018连续2 a实施大田对比试验,测定了玉米干物质积累量、产量及组成等指标。结果表明,在吐丝后10~40 d,干物质积累总量以膜下滴灌和浅埋滴灌最大,传统畦灌最小,9月26日以浅埋滴灌最高,膜下滴灌最低,但二者均与传统畦灌之间的差异均不显著;干物质转运率及干物质转运量对籽粒的贡献率均表现为浅埋滴灌>传统畦灌>膜下滴灌,其中干物质转运率浅埋滴灌分别较膜下滴灌和传统畦灌高16.7%和5.6%,干物质转运量对籽粒的贡献率浅埋滴灌分别较膜下滴灌和传统畦灌高12.8%和3.5%;籽粒干质量强势粒和弱势粒在吐丝后30 d之内处理间差异较小,吐丝30 d后随着生育期推移处理间差异逐渐增大;平均灌浆速率强势粒以膜下滴灌最高,传统畦灌最低,弱势粒则以浅埋滴灌最高,膜下滴灌最低,而活跃生长期强势粒和弱势粒均表现为浅埋滴灌>传统畦灌>膜下滴灌;玉米籽粒产量2017年浅埋滴灌显著高于膜下滴灌(P<0.05),但与传统畦灌之间差异不显著,2018年表现为浅埋滴灌>传统畦灌>膜下滴灌(P<0.05);灌溉水利用效率不同处理间2 a变化规律一致,浅埋滴灌和膜下滴灌均显著高于传统畦灌(P<0.05)。浅埋滴灌不仅具有节水、增产作用,而且由于地表无膜有效地避免了残膜污染,是西辽河平原灌区玉米高产高效栽培适宜的灌溉方式。

       

      Abstract: Abstract: Lack of water resources restricts the modern development of Chinese agriculture and the income increase of Chinese farmers sustainably. Maize is one of the crops that need amounts of water in its whole development and growth stage. In this study, effects of different irrigation methods on yield and water use efficiency of maize in the region of West Liaohe plain were investigated. The treatments included shallow buried drip irrigation (SBDI), traditional border irrigation (TBI) and mulched drip irrigation (MDI). Dry matter accumulation and yield were measured. Transportation of dry matter and water use efficiency of maize were calculated. Two-year field contrast tests were carried out. The area of plot with 3 replicates was 864 m2 (7.2 m by120 m) respectively. The experimental cultivar was Nonghua 101 with planting density 75 000 plants /hm2. Application rate of the fertilizer was N 35 kg/hm2, P2O5 90 kg/hm2, K2O 45 kg/hm2. Additional N fertilizer of 240 kg/hm2 was applied in the jointing stage, big trumpet opening stage and silking stage according to the ratio of 3:6:1, respectively, following irrigation events. The results showed that the total amount of dry matter accumulation was the highest under condition of MDI and SBDI during 10 to 40 days after the silking stage, but both were not significantly different from TBI (P>0.05). The contribution rate of translocation rate and amount of dry matter to grain were both highest in the SBDI, followed by TBI and MDI, and the contribution rate of dry matter translocation rate to grain of SBDI was 16.7% and 5.6% higher than that of MDI and TBI respectively, and the contribution rate of amount of dry matter to grain of SBDI was 12.8% and 3.5% higher than that of MDI and TBI respectively. The differences of the dry weight of superior kennel and inferior kennel were not obvious among treatments within 30 days after silking stage, but were gradually increased after 30 days of silking. The mean grain filling rate of the superior kennel was the highest under the condition of MDI and the lowest under the condition of TBI, while inferior kennel was the highest under the condition of SBDI and the lowest under the condition of MDI. The mean grain filling rate of the superior kennel and inferior kennel were the highest in the SBDI, followed by TBI and MDI in the active growth period. The yield of SBDI was significantly higher than that of MDI, but there wasn’t significant difference with TBI in 2017. In 2018, the grain yield of SBDI was 6.1%-13.9% and 1.4%-6.2% higher than that of MDI and TBI, respectively. The change of the irrigation water use efficiency in 2017 was consistent with that in 2018, and the irrigation water use efficiency of the SBDI and MDI were both significantly (P<0.05) higher than that of TBI. In conclusion, the SBDI not only has significant advantages in saving water and promoting yield but also effectively avoids the residual film pollution due to the surface without plastic mulching, which is in favor of the SBDI to be a suitable irrigation method for high-yield and high-efficiency cultivation of maize in the irrigation region of West Liaohe plain.

       

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