Effects of Intercropping Groundnut and Green-Manure Legumes to Corn on the Yields of Corn and Productivity and Chemical Properties of Soil

摘要

As an effort to fine green-manure production methods that did not need complete devotion of land during the cropping season, a field experiment with three successive annual cropping was conducted in Thailand to examine effects of repetitive intercropping groundnut and green-manure legumes to corn for Two successive years on the yields of the intercropped corn and soil productivity and chemical properties. Groundnut and green-manure legumes, which included creeping thornless mimosa, rice bean, sword bean, Pigeon pea and lab , were intercropped to corn plants which were grown with double-row spacing, and Allowed to continue growing after harvesting and cutting down the stubble of the intercropped corn and Were then chopped and plowed into the soil at about one month before the following annual cropping(9- 10 months after planting).