灌溉排水学报2024，Vol.43Issue(3)：27-32,6.DOI:10.13522/j.cnki.ggps.2023373
土层厚度与灌溉方式对寒地水稻节水生长及产量的影响
Effects of soil thickness and water-saving irrigation method on growth and yield of rice in cold region
摘要
Abstract
[Objective]This paper is to explore the effect of different soil thickness and irrigation methods on rice growth in cold region.[Method]In 2020,a rice water-saving experiment was carried out in Yuan Longping Rice test Base,Keyou Front Banner,Ulanhot City,Xingan League.The experiment consisted of three soil thickness treatments:15-20 cm(H1),20-25 cm(H2)and 25-30 cm(H3),and two irrigation treatments:controlled irrigation(K)and conventional irrigation(CK).In each treatment,we measured the growth and yield of the rice.[Result]The plant height in the K treatment was lower than that in the CK.Compared to CK,the K treatment increased root length,stem diameter,effective panicle number per hole,thousand grain weight and the rice yield.Compared to H1,H2 and H3 increased rice yield by 30.49%-32.91%and 63.74%-76.33%,respectively.Compared to CK,the K treatment reduced total irrigation amount by 55.04%-56.84%,and increased irrigation water productivity by 1.55 to 1.86 times.Compared to H1,H2 and H3 increased the irrigation water productivity by 35.61%to 38.62%and 73.07%to 94.14%,respectively.[Conclusion]Irrespective of the irrigation methods,varying soil thicknesses exerted distinct effects on plant height,root length,stem thickness,effective panicle count per hole,and rice yield.Implementing controlled irrigation alongside a soil thickness of 25-30 cm significantly enhanced rice growth,improved water use efficiency,and boosted rice yield.These findings offer valuable guidelines for rice cultivation in cold regions.关键词
土层厚度/灌溉方式/寒地水稻/控制灌溉/产量Key words
soil layer thickness/irrigation method/rice in cold area/controlled irrigation/yield分类
农业科技引用本文复制引用
卢程悦,曹志富,张万锋,辛海霞,杨树青..土层厚度与灌溉方式对寒地水稻节水生长及产量的影响[J].灌溉排水学报,2024,43(3):27-32,6.基金项目
国家自然科学基金项目(52069023,52179037) （52069023,52179037）
