Abstract:

The effects of sugarcane intercropping with soybean on soil nutrients have been studied as the scientific basis to establish Guangxi sugarcane favorable intercropping model. Soil organic matte, N, P and K contents were determined under different soybean cultivars (early, mid and late maturing), sowing dates and planting density. Results showed that intercropping of sugarcane with soybean enhanced the soil nutrient under the same fertilizer and management condition. Soil nutrient tend to decline after sowing sugarcane, but the declines were less under intercropping than under sugarcane single culture. Three factors (variety, sowing date and planting density) analysis showed that intercropping mid maturing soybean variety in one line and in mid February helped improving soil nutrient and balancing the soil fertility.