This study investigated the effects of different intercropping and interplanting patterns of green manure on soil fertility in Guizhou, China. The results showed that maize yield in improved soil fertility areas under 1:1 application ratio between organic and inorganic fertilizer averagely increased by 23.05% (102.5 kg/667m 2) compared with the conventional application pattern. The yields of the potato-green manure-maize pattern, rape-green manure-maize pattern and wheat-green manure-maize pattern increased by 51.2-66.0 kg/667m 2, 146.1 kg/667 m 2 and 146.7 kg/667 m 2, respectively compared with the conventional application pattern. The soil organic matter, total nitrogen, alkaline hydrolysis nitrogen, active P and active K content in improved soil fertility areas averagely increased by 0.23%, 0.033%, 23.23 mg/kg, 1.5 mg/kg and 17.75 mg/kg respectively and the soil fertility was increased to varying degrees. The high maize yield depends on its strong and high plants and better economic characters.
