蓄雨型间歇灌溉模式下缓释肥对水稻生长、产量及水分利用的影响
Effects of Slow-release Fertilizer on Growth,Yield and Water Use of Rice Under Rain-storing Intermittent Irrigation
张艺 1何军 2张宝龙 1张才军 3甘学华3
作者信息
- 1. 三峡大学水利与环境学院,湖北 宜昌 443002
- 2. 三峡大学水利与环境学院,湖北 宜昌 443002;三峡大学三峡库区生态环境教育部工程研究中心,湖北宜昌 443002
- 3. 湖北省漳河工程管理局,湖北 荆门 448156
- 折叠
摘要
为探索蓄雨型间歇灌溉模式下缓释肥水稻节水高产效益,在湖北省漳河灌区开展不同水肥处理下水稻生长特性、产量及耗水规律的测桶试验研究.设置传统淹水灌溉(W1)、蓄雨型间歇灌溉(W2)2种灌溉模式,传统肥(N1)、缓释肥(N2)2种肥料类型,共计4个处理,研究不同处理下水稻的生长特性、产量及水分利用.结果表明,蓄雨型间歇灌溉缓释肥对水稻生育前中期的分蘖产生抑制作用,有效控制了无效分蘖,所形成的旱涝胁迫对水稻株高没有产生明显抑制作用,最终产量与相同灌溉模式和相同施肥类型处理均无显著性差异,但缓释肥处理下,蓄雨型间歇灌溉的灌水量较淹水灌溉减少38.39%,灌溉次数减少9次,排水量减少56 mm,降雨利用率提高 13.82%,耗水量减少 23.68%,水分利用效率提高 37.98%,灌溉水利用效率提高73.28%.由此可见,蓄雨型间歇灌溉模式下施用缓释肥在稳定水稻产量的同时,可减少灌排水量及灌溉次数,提高降雨及水分利用率,具有良好的节水保产效果.
Abstract
In order to explore the water-saving and high-yielding benefits of slow-release fertilizers for rice under the rain-storing intermittent irrigation mode,a bucket test experiment was conducted to investigate the growth characteristics,yields and water consumption of rice under different water and fertilizer treatments in the Zhanghe irrigation district of Hubei province.The growth characteristics,yield and water use of rice under different treatments were studied under 2 irrigation modes(traditional flooding irrigation,W1;rain-storing intermittent irrigation,W2)coupled with 2 fertilization types(traditional fertilizer,N1;slow-release fertilizer,N2).The results showed that the combination of rain-storing intermittent irrigation and slow-release fertilizer had an inhibitory effect on tillers in the early and middle stages of rice growth,which effectively controlled ineffective tillers.The drought and flood stress had significant inhibitory effect on the height of rice plants,and the final yield showed no significant difference under the same irrigation mode and fertilizer type.However,under the slow-release fertilizer treatment,rain-storing intermittent irrigation reduced water usage by 38.39%,reduced the number of irrigations by 9 times,reduced drainage by 56 mm,increased rainwater utilization efficiency by 13.82%,reduced water consumption by 23.68%,and increased water use efficiency by 37.98%and irrigation water use efficiency by 73.28%.Above results showed that the combination of rain-storing intermittent irrigation with slow-release fertilizer could stabilize rice yields,reduce irrigation and drainage volume and frequency,improve rainwater and water use efficiency,and have good water saving and yield increase effects.
关键词
蓄雨型间歇灌溉/缓释肥/水稻/生长特性/产量/水分利用效率Key words
rain-storing intermittent irrigation/slow-release fertilizer/rice/growth characteristic/yield/water use efficiency引用本文复制引用
基金项目
国家重点研发计划项目(2018YFC1508302)
湖北省水利重点科研项目(HBSLKY202207)
湖北省水利重点科研项目(HBSLKY202411)
出版年
2024
国家科技期刊平台
NSTL
万方数据