江西农业学报2024，Vol.36Issue(1)：21-26,6.DOI:10.19386/j.cnki.jxnyxb.2024.01.004
考虑降雨预报的灌溉模式对水稻产量及需水量的影响
Effect of Irrigation Model Considering Rainfall Forecast on Rice Yield and Water Requirement
摘要
Abstract
Early rice and late rice were taken as test materials,the effects of intelligent irrigation and traditional flooding irrigation on rice yield index and crop water requirement were studied under the premise of rainfall forecast.The results showed that the intelligent irrigation mode could save irrigation water by 83.9 t/hm2 and 119.2 t/hm2 for early rice and late rice,and reduce drainage by 193.8 t/hm2 and 35.6 t/hm2.During frequent rainfall,the intelligent irrigation mode could fully meet water requirement of the key period,and during periods of water scarcity,it could appropriately reduce the crop water demand without affecting yield.The intelligent irrigation mode could also increase the theoretical yield of early rice and late rice by 284.52 kg/hm2 and 508.84 kg/hm2,respectively.In conclusion,in the process of rice planting,the intelligent irrigation mode considering rainfall forecasts can improve irrigation efficiency,optimize rice water requirement,reduce water consumption and environmental pollution,and achieve rice yield increase,which has significant environmental and economic benefits.关键词
智能灌溉/降雨利用/节水减排/水稻增产/作物需水量Key words
Intelligent irrigation/Rainfall utilization/Water saving and emission reduction/Rice yield increase/Crop water requirement分类
农业科技引用本文复制引用
张海军,宗星宇,邓海龙,谢亨旺,付桃秀,王子荣..考虑降雨预报的灌溉模式对水稻产量及需水量的影响[J].江西农业学报,2024,36(1):21-26,6.基金项目
江西省水利厅重点项目(202124ZDKT21、202224ZDKT05) （202124ZDKT21、202224ZDKT05）
江西省水利厅科技项目(202224ZDKT05、202324YBKT17、202324YBKT16、202324YBKT15) （202224ZDKT05、202324YBKT17、202324YBKT16、202324YBKT15）
江西省"科技+水利"重大项目(2022KSG01008) （2022KSG01008）
江西省水利厅推广项目(202223TGKT09). （202223TGKT09）
