大豆科学2011，Vol.30Issue(1)：62-66,5.
亏缺灌溉对大豆根系生长和养分积累及产量的影响
Effect of Deficit Irrigation on Root Development, Nutrient Accumulation and Yield in Soybean
摘要
Abstract
Xindadou 8 was used as tested material to study 4 kinds of soil moistures influences ( lower limit was 80％, 70％, 60％ and 50％ field held) on root system growth, root system vigor and yield of single plant by pot culture method. The resuits showed that along with water deficit, dry weight, root system absorb superficial area, root bleeding , and root vigor displayed notable lessening trend as 80％ ＞ 70％ ＞ 60％ ＞ 50％ ;Moreover, the percentage content and accumulating amounts of N, P2O5, K2O and seed yield around July 20th decreased after deficit irrigation treatment. Furthermore, compared with 80％ moisture treatment, yield per plant of 70％ , 60％ and 50％ moisture treatment reduced to 87.8％, 63.0％ and 49. 9％, respectively. And the water was efficiency of 70％ treatment was maximal. The results indicated that controlled the growth, vigor changes and accumulation of N, P2O5, K2O in soybean root system by moderating deficit irrigation to achieve water-saving and high production of soybean was feasible.关键词
大豆/亏缺灌溉/根系生长/根系养分/产量Key words
Soy bean/ Deficit irrigation/ Root nutrient/ Yield分类
农业科技引用本文复制引用
沈融,章建新,古丽娜,苏广禄,邵长贺..亏缺灌溉对大豆根系生长和养分积累及产量的影响[J].大豆科学,2011,30(1):62-66,5.基金项目
新疆科技厅攻关项目资助(200631104) （200631104）
国家自然科学基金项目资助(30660081,31060179). （30660081,31060179）
