| 摘要: |
| 针对小麦等密植作物不同生育期株高和冠层覆盖度对微喷带灌溉均匀度产生影响的问题，采用试验方法，根据小麦生长规律设计不同的株高和种植密度，研究植株遮挡对于微喷带灌溉均匀度的影响。结果表明:1)使用微喷带进行田间灌溉时，其灌溉均匀度的影响因素包括微喷带水力性能影响和作物生长状况影响2部分；2)微喷带的水力性能是保证小麦微喷带灌溉均匀度的基础；3)作物生长状况对微喷带灌溉均匀度影响显著，在田间灌溉中可根据作物生长阶段的密度及覆盖度，调整微喷带的运行压力，提高灌溉均匀度。 |
| 关键词: 小麦 微喷带 均匀度 冠层覆盖度 |
| DOI：10.11841/j.issn.1007-4333.2021.02.02 |
| 分类号: |
| 基金项目:“十三五”国家重点研发计划项目(2016YFC0400203)；公益性行业(农业)科研专项(201503125)；陕西省自然科学基金项目(2020 JM-166) |
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| Effect of wheat shade on the uniformity of micro-sprinkling irrigation |
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WANG Wenjuan,WANG Wene,HU Xiaotao
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Key Laboratory of Agricultural Soil and Water Engineering in Arid Areas of Ministry of Education, Northwest A & F University, Yangling 712100, China
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| Abstract: |
| Aiming at the influence of plant height and canopy coverage on the irrigation uniformity of micro-sprinkling hoses at different growth stages of high density planting wheat, the influence of plant shelter on the irrigation uniformity of micro-sprinkling hoses is studied by using different plant height and planting density designed according to the growth law of wheat. The results show that: 1)The influencing factors of irrigation uniformity include the hydraulic performance of the Micro-sprinkling hoses and crop growth condition with micro-sprinkling hoses. 2)The hydraulic performance of micro-sprinkling hoses ensures the micro-sprinkling hoses irrigation uniformity. 3)Crop growth has a significant influence on the uniformity of micro-sprinkling hoses irrigation. In actual application, the operating pressure of micro-sprinkling hoses can be adjusted to improve the uniformity of irrigation according to the density and coverage of crop growth. |
| Key words: wheat micro-sprinkling hose uniformity canopy coverage |
