Yong Tai-Wen, Yang Wen-Yu, Xiang Da-Bing, Chen Xiao-Rong
College of Agronomy, Sichuan Agricultural University/Ministry of Agriculture Key Laboratory of Crop Physiology, Ecology and Cultivation in Southwest, Wenjiang 611130, Sichuan, China.
Ying Yong Sheng Tai Xue Bao. 2012 Jan;23(1):125-32.
A multi-year field experiment was conducted to study the variation features of rhizosphere environment and crop root growth under the cropping modes of wheat-soybean (A1), wheat-sweet potato (A2), maize (A3), wheat/maize/soybean (A4), and wheat/maize/sweet potato (A). Among the five modes, A4 increased the plant biomass, root activity, and root dry mass of wheat, maize, and soybean at their flowering and maturing stages, and the quantity of rhizosphere soil bacteria, fungi, and actinomycetes. The biomass and quantity of rhizosphere soil microbes were relay strip intercropping > single cropping, soybean > sweet potato, and fringe row > center row. It was suggested that wheat/maize/soybean relay trip intercropping could improve rhizosphere environment, promote the crops root growth and increase their aboveground biomass, and accordingly, realize yield-increasing.
开展了一项多年田间试验，以研究小麦 - 大豆（A1）、小麦 - 甘薯（A2）、玉米（A3）、小麦/玉米/大豆（A4）和小麦/玉米/甘薯（A）种植模式下根际环境和作物根系生长的变化特征。在这五种模式中，A4在小麦、玉米和大豆的开花期和成熟期增加了植株生物量、根系活力和根干质量，以及根际土壤细菌、真菌和放线菌的数量。根际土壤微生物的生物量和数量表现为套作 > 单作，大豆 > 甘薯，边行 > 中行。表明小麦/玉米/大豆套作能改善根际环境，促进作物根系生长，增加地上生物量，从而实现增产。
