Comparison of Fertilizer Effect of Different Fertilizer Applications on Summer Maize in Guanzhong Area

Using main normal and special maize cultivars as experimental materials,the effects of applying normal fertilizer,formula fertilizer,and new BB fertilizer on the productions and related plant traits of summer maize in Shaanxi province were analyzed.Increasing application of K fertilizer,and applying new BB fertilizer could improve kernel weight and plant productivity of maize,then significantly increase grain yield.The formula fertilizer and the new BB fertilizer had more obvious advantages in increasing the yield of maize than the normal fertilizer,and increased by 7.4% and 12.8% respectively.Under the same application level of fertilizer,the yield of normal and special maize cultivars respectively increased by 15.0% and 4.1% respectively.These results showed that the application of compound fertilizer with K and new BB fertilizer was important for further increasing the yield of maize in Guanzhong area of Shaanxi Province,and under the same application level of fertilizer,the normal maize cultivar had more obvious increase in yield than the special maize cultivar.