Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2010, Vol. 26 ›› Issue (22): 201-205.

Special Issue: 油料作物

• 23 • Previous Articles     Next Articles

The Effect of Fertilizer on Economic Benefits of Oil Sunflower in Hetao Irrigated Area

  

  • Received:2010-06-02 Revised:2010-07-23 Online:2010-11-20 Published:2010-11-20

Abstract:

In order to determine the effect of application of N, P, K of sunflower in low middle yield field in Hetao irrigated area of Inner Mongolia. A 3-factor and 2-degree common rotary design was used to analyze and simulate the effect of application of N, P, K in Hetao irrigated area of Inner Mongolia. The results showed that application of N, P, K could greatly increase yield of oil sunflower in Hetao irrigated area, and it could be expressed by a 3-factor and 2-degree mathematical model. The highest yield was 4331.55 kg/hm2. The optimum proportion of N, P, K economic benefit was 6.91:3.31:1. According to the marginal profit value of fertilizer production, the cost of different fertilization could be obtained, and thus we could choose useless investment and high profit fertilization program.