CAJ | 학술논문

通过田间小区试验的方法研究了磷肥不同施用方式下，土壤速效磷含量变化、超高产春玉米磷素吸收规律以及产量的变化。结果表明，土壤速效磷含量随施磷量的增加呈增加的趋势，苗期不同处理间差异显著，至蜡熟期差异逐渐减小。施用磷肥提高了春玉米植株对磷素的吸收量，在磷肥总量相同的条件下，不同基肥、追肥比例春玉米磷素吸收量有所不同。春玉米产量与磷肥施用量呈典型抛物线关系，一定范围内随施磷量增加春玉米产量呈增加的趋势，过量施用磷肥导致减产。
통과전간소구시험적방법연구료린비불동시용방식하，토양속효린함량변화、초고산춘옥미린소흡수규률이급산량적변화。결과표명，토양속효린함량수시린량적증가정증가적추세，묘기불동처리간차이현저，지사숙기차이축점감소。시용린비제고료춘옥미식주대린소적흡수량，재린비총량상동적조건하，불동기비、추비비례춘옥미린소흡수량유소불동。춘옥미산량여린비시용량정전형포물선관계，일정범위내수시린량증가춘옥미산량정증가적추세，과량시용린비도치감산。
Field experiment was carried out to study the effects of different phosphorus applications on soil available phosphorus and phosphorus absorption of spring maize .The results showed that the content of soil available phosphorus increased with the application of phosphorus , and each treatment was signifi-cantly different in seedling , and it tended to be the same when mature .The phosphorus absorption in plant increased with the application of phosphorus , and the phosphorus absorption was different with dif-ferent ratio between basal fertilizer and top application .The production increased with the application of phosphorus within a certain limit and decreased beyond some extent .