欢迎访问《麦类作物学报》编辑部网站

作者	单位
王冰心，于振文，石玉，赵俊晔，王玉秋	(1.山东农业大学农业部作物生理生态与耕作重点实验室, 山东泰安 271018 2.中国农业科学院农业信息研究所, 北京 100081 3.济宁市兖州区气象局, 山东济宁 272100)

摘要点击次数: 883

全文下载次数: 1068

中文摘要:

为探讨测墒补灌下微喷带灌溉在小麦节水灌溉中的应用，在带宽80 mm下设置60 m(T1) 、80 m(T2) 和100 m(T3)3个带长处理，研究了微喷带灌溉下带长对小麦耗水特性和籽粒产量的影响。其中，T1处理沿畦长方向设置0~6 m(A)、14~20 m(B)、34~40 m(C)、54~60 m(D)4个取样区段，T2处理在T1处理的基础上增设74~80 m(E)取样区段，T3处理在T2处理的基础上增设94~100 m(F)取样区段。结果表明， T1处理拔节期和开花期灌水后不同取样区段0~60 cm土层土壤质量含水量均无显著差异；T2处理拔节期灌水后表现为A、B、C、D>E，开花期灌水后表现为A、B、C>D>E；T3处理拔节期和开花期灌水后均表现为A、B、C>D>E>F。小麦拔节至开花期耗水量、耗水强度和耗水模系数均表现为T3>T2>T1，开花至成熟期耗水量、耗水强度和耗水模系数均表现为T1、T2>T3。小麦籽粒产量和水分利用效率均表现为T1、T2>T3，灌溉水利用效率表现为T1>T2>T3。综上来看，在带宽80 mm条件下微喷带灌溉的带长为60 m时小麦产量和水分利用效率最高，而且水分分布均匀，应用效果最优，带长80 m的效果也较好。

英文摘要:

In order to explore the application of micro-sprinkling in soil-moisture monitoring supplemental irrigation and research the different lengths of micro-sprinkling hose on water consumption characteristics and grain yield of winter wheat, three lengths［60 m(T1), 80 m(T2) and 100 m(T3)］ of micro-sprinkling hose with 80 mm width were designed, and 60 m(T1) was set as CK. Along with the direction of field border, four sample areas were set under T1 treatment as 0-6 m(A), 14-20 m(B), 34-40 m(C) and 54-60 m(D), and under T2 treatment one more sample area was set as 74-80 m(E), and under T3 treatment the other one more simple area was set as 94-100 m(F). The results showed that the mass water content of 0-60 cm soil layers had no significant difference in different sample areas under T1 treatment after irrigation at jointing stage and anthesis stage, which showed A, B, C, D>E after irrigation at jointing stage and A, B, C>D>E after irrigation at anthesis stage under T2 treatment, and A, B, C>D>E>F after irrigated at jointing stage and anthesis stage under T3 treatment. Water consumption, water-consumption intensity and water-consumption proportion showed T3>T2>T1 at jointing to anthesis stage, and showed T1, T2>T3 at anthesis to maturity stage. Grain yield and water use efficiency were T1, T2>T3, and irrigation water use efficiency showed T1>T2>T3. Considering the grain yield, water use efficiency and irrigation water use efficiency, T1 was the best treatment and T2 was the suboptimal treatment under this experimental conditions.

查看全文查看/发表评论下载PDF阅读器

关闭