Effect of Organic Fertilization Increasing on Growth and Yield of Tomato,and Nitrate-N in Soil Profile

The field experiment was carried out to study the effect of increasing manure(M) application based on the chemical fertilizers(CF) on growth and yield of tomato,and nitrate-N in soil profile.The results showed that compared to sole inorganic fertilizer application,increasing manure could improve tomato growth and development,increased dry matter quality,nitrogen accumulation and fruit quality,and significantly enhanced vitamin C content in fruit of tomato.The fruit yield of tomato was increased by 15.7% as compared to sole inorganic fertilizer application.The nitrate-N content in 0-60 cm soil layers of manure increasing treatment was higher than sole inorganic fertilizer application,whereas the nitrate-N content in 60-200 cm soil layers of manure increasing treatment was lower than sole inorganic fertilizer application.This result indicates that combined application organic fertilizer and inorganic fertilizer could promote tomato growth and development,increased fruit yield and improved quality.