CAJ | 학술논문

为了准确掌握淡灰钙土种植玉米对磷肥的需求量，2009年在宁夏西夏区进行了磷肥单因子5水平玉米田间肥效试验。结果表明：施用磷肥对玉米有显著的增产作用，增产幅度达7.7%～20.5%；根据回归方程得出，P2O5施用量为99.3 kg/hm2时，玉米产量最高，为9630.6 kg/hm2。结合当地生产实际，初步确定了在西夏区淡灰钙土上种植玉米的P2O5的施用量为45～90 kg/hm2。
위료준학장악담회개토충식옥미대린비적수구량，2009년재저하서하구진행료린비단인자5수평옥미전간비효시험。결과표명：시용린비대옥미유현저적증산작용，증산폭도체7.7%～20.5%；근거회귀방정득출，P2O5시용량위99.3 kg/hm2시，옥미산량최고，위9630.6 kg/hm2。결합당지생산실제，초보학정료재서하구담회개토상충식옥미적P2O5적시용량위45～90 kg/hm2。
In order to precisely know the demand for phosphate fertilizer of the maize grown on the light sierozem, a test was made on the field effects of application of single factor phosphate at 5 levels for maize in Xixia district in Ningxia. The results showed that application of phosphate fertilizer at various rates all had significant effects on the yield increase of the maize and the yield increase reached 7.7% to 20.5%. Based on the regression equation, when the phosphate fertilizer was applied at the rate of 99.3 kg/hm2 the yield of the maize was the highest, namely 9 630.6 kg/hm2. Considering the local production practice, it is determined firstly that the application rate of the phosphate fertilizer to the maize on the light sierozem in Xixia district should be 45~90 kg/hm2.