Irrigation experimental study of 6 years had been carried out for 30 varieties of interplantation crop combination patterns in 15 sites and stations in Shanxi province by using field plot test.

• 在山西省15个试验站点,采用田间小区试验方法,对30种间作套种组合种植模式进行了历时6年的灌溉试验研究。