CAJ | 학술논문

在潮土上进行了5年的定位试验,研究了不同施肥制度对土壤肥力和玉米产量的影响.结果表明:长期均衡施肥(NPK、M、NPKM),可以显著提高土壤全氮、全磷、速效氮、有效磷等肥力指标以及玉米产量,尤以M处理增幅最大,与本底值相比,土壤全氮、全磷、速效氮和有效磷含量分别增加了15.00%,24.81%,18.97%和21.43%;而不均衡施肥(N、NK、NP)导致相应的营养元素的含量降低.分析表明,在潮土上施氮肥和磷肥对提高玉米产量具有重要的作用.
재조토상진행료5년적정위시험,연구료불동시비제도대토양비력화옥미산량적영향.결과표명:장기균형시비(NPK、M、NPKM),가이현저제고토양전담、전린、속효담、유효린등비력지표이급옥미산량,우이M처리증폭최대,여본저치상비,토양전담、전린、속효담화유효린함량분별증가료15.00%,24.81%,18.97%화21.43%;이불균형시비(N、NK、NP)도치상응적영양원소적함량강저.분석표명,재조토상시담비화린비대제고옥미산량구유중요적작용.
A study on soil fertility and maize yield with different fertilization systems were carried out in fluvo aquic soil in Tianjin. The results indicted that maize yield of NPK, M and NPKM treatments were greater than other treatments. The contents of total N and total P, alkali-hydrolyzed nitrogen and available P increased in NPK, M and NPKM treatments. Especially in the M treatment, the contents of total N and total P, alkali-hydrolyzed nitrogen and available P increasedby 15.00%, 24.81%, 18.97% and 21.43%, respectively. On the contrary, total N and P were exhausted in the treatments without N or P fertilizer. Similar trends were observed in the case of alkali-hydrolyzed nitrogen and available P in the treatments without N and P fertilizers. The N and P fertilizers had significant yield-increasing effects on maize in fluvo-aquic soil.