| 西北旱区膜下滴灌条件下种植模式对制种玉米生长影响 |
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| 引用本文： | 秦京涛,吕谋超.西北旱区膜下滴灌条件下种植模式对制种玉米生长影响[J].中国农学通报,2018,34(25):7-13. |
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| 作者姓名： | 秦京涛 吕谋超 |
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| 作者单位： | 中国农业科学院农田灌溉研究所/农业农村部节水灌溉工程重点实验室;中国农业大学中国农业水问题研究中心 |
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| 基金项目： | 中国农业科学院基本科研业务费专项(Y2017XM08)。 |
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| 摘 要： | 为探究膜下滴灌条件下西北旱区制种玉米高产节水最佳种植模式,通过田间小区试验,设置了9种宽窄行种植模式处理。窄行间距为30 cm(N30)和40 cm(N40),宽行间距分别为60 cm(W60)、70 cm(W70)、80 cm(W80)、90 cm(W90)和100 cm(W100),其中对于N40处理,没有设置宽行间距为100 cm的处理,株距统一为15 cm。结果表明,窄行间距相同时,随着宽行间距增大,株高呈减小趋势,茎粗及叶面积指数呈增大趋势;相同种植密度下,窄行行间距为30 cm时,其植株茎粗小、株高高;各处理生育期累计耗水量ET范围约为525.10~545.18 mm;从群体总体产量水平来看,在相同种植密度情况下,N30处理的总体产量水平高于N40处理。从稳定高产角度考虑,推荐当地膜下滴灌制种玉米种植模式窄行和宽行种植间距分别为30 cm和70 cm。
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| 关 键 词： | 制种玉米 种植模式 种植密度 耗水量 生长指标 产量 |
| 收稿时间： | 2018/4/2 0:00:00 |
| 修稿时间： | 2018/6/23 0:00:00 |
Cropping Patterns with Drip Irrigation Under Mulch in Northwest Arid Region of China: Effects on Seed Corn Growth |
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| Abstract: | The paper aims to study the optimal cropping pattern for water saving and high-yield cultivation of seed corn with drip irrigation under mulch in northwest arid region of China. We arranged 9 narrow and wide row spacing treatments, the narrow row spacing contained the treatments of 30 cm (N30) and 40 cm (N40); the wide row spacing contained 60 cm (W60), 70 cm (W70), 80 cm (W80), 90 cm (W90) and 100 cm (W100); thereinto, the plant spacing of N40 treatment with no wide row spacing 100 cm was 15 cm. The results showed that: when the narrow row spacing was the same, with the increase of wide row spacing, the plant height had a decreasing trend, while, the stem diameter and the leaf area index (LAI) increased gradually; under the same planting density, the stem diameter was small and the plant height was high when the narrow line spacing was 30 cm; the accumulative water consumption ET range of each treatment during growth period was about 525.10-545.18 mm; from the perspective of the total yield level, N30 treatment was higher than N40 treatment in the same planting density. From the perspective of stable and high yield, it is recommended that the local
seed corn planting pattern with drip irrigation under mulch could be narrow planting spacing of 30 cm and wide-row planting spacing of 70 cm. |
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| Keywords: | seed corn cropping pattern planting density evapotranspiration growth yield |
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