膜下滴灌条件下土壤质地对花生生长发育及产量形成的影响

摘要

In order to explore the effects of soil texture on peanut growth and yield formation with drip irrigation under plastic film,different soil blocks were selected,and the dry matter accumulation and volume of pods,yield components and main agronomic traits of peanut were investigated with drip irrigation under plastic film after flowering.The results showed that the dry matter accumulation per plant of different soil textures ranked as loam ＞ sandy loam ＞ clay.The sandy loam and loam were more conducive to the growth of pod volume.The loam was conducive to the formation of pod yield and yield components.The clay was beneficial to the growth of peanut vegetative organs and loam was more conducive to reproductive growth.Under the condition of drip irrigation under plastic film,loam was more suitable for pod growth and yield formation of peanut.%为探索膜下滴灌条件下,不同土质对花生生长发育及产量的影响,选取不同土质地块,采用花后膜下滴灌技术,取样调查花生荚果干物质积累、荚果体积、产量构成要素及主要农艺性状.结果表明,不同质地土壤处理单株干物质积累量大小依次表现为壤土＞砂壤土＞粘土;砂壤土和壤土更加有利于荚果体积增长;壤土有利于荚果产量及产量构成要素的形成;粘土有利于花生营养器官的生长,壤土则更加有利于其生殖生长.在起垄覆膜滴灌条件下,壤土对花生荚果发育和产量的形成更加适宜.