木薯花生间作的品种筛选及高效栽培模式

Preliminary Study on High Benefit Cultivation Model and Variety Screening of Cassava Peanut Intercropping

通过开展间作花生品种筛选、行距配置及播期覆膜试验，测定不同间作模式下花生农艺性状和产量，分析木薯、花生间作的综合效益，研究木薯／花生间作的高产高效栽培模式。结果表明，在6个参试花生品种中．桂花771最适合与木薯间作种植，其产量比当地对照种桂花17增加了18．7％，其次是桂花22和桂花836;在间作模式筛选试验中，中窄行距下（0．9-1．1m）1行木薯间作2行花生的产量效益明显高于宽行距（1．3m）下1行木薯间作3行花生。覆盖地膜间作花生的经济效益高于不覆盖地膜处理，木薯与花生相隔15d间作种植的产量效益高于同时种植木薯和花生处理。总体而言．选用桂花771作为与木薯间作的花生品种．采用1行木著间作2行花生的行距配置．且花生比木著提前15d并覆盖地膜种植的产量效益最好．

In order to research the high yield and high benefit cultivation of cassava/ peanut intercropping, agronomic traits, yield and comprehensive benefit of different intercropping model were determined in the peanut variety screening, row spacing and sowing stage experiment. The results showed that, Guihua771 was the most suitable for intercropping with cassava in six tested peanut varieties, the yield of Guihua771 increased by 18.7% than the control varieties GuihualT, as followed were Guihua22 and Guihua836. In the cultivation model screening experiment, the yield benefit of one row cassava intercropping with two row peanut in the narrow or moderate row spacing of cassava （0.9-1.1 m） was significantly higher than that of one row cassava intercropping with three row peanut in the wide row spacing （1.3 m） of cassava. Intercropping benefit with plas- tic film mulching was higher than that of no film mulching, and the yield benefit of sowing peanut and cassava at the inter- val of 15 day was higher than sowing cassava and peanut in the same day. Overall, the high benefit cultivation model of cassava/peanut intercropping should select Guihua771 as peanut variety intercropping with cassava, and use the row spacing of one row cassava intercropping with two row of peanut. The sowing date of peanut was 15 d earlier than that of cassava with mulching film planting.