Research on productivity of the sugarcane/soybean intercropping pattern

In this study, field experiments were conducted to elucidate the population of weeds, soil nutrient, crop yield and land equivalent ratio(LER) under sugarcane monoculture, soybean monoculture and sugarcane/soybean intercropping patterns. Results showed that the amount of weeds was 16.5 to 25.0 plant per m2 under sugarcane/soybean intercropping pattern while 40.0 to 45.0 plant per m2under sugarcane monoculture, reduced significantly under sugarcane/soybean intercropping pattern. Furthermore, the values of the tatol N, tatol P, available K and available P increased by 0.03g/kg,0.058 g/kg,0.1344 mg/kg and 5.34 mg/kg respectively, shouing that some of the soil nutrients was improved under intercropping pattern. The sugarcane seedling emergence and cane yield had no significant difference between sugarcane monoculture and sugarcane/soybean intercropping pattern. Finally, the LER of the intercropping pattern was high as 1.39-1.63, which meant that intercroping pattern had stronger intercropping advantages.