CAJ | 학술논문

采用NPK三因素多水平的不完全设计,通过连续多年的小区定位试验,在12个不同NPK用量的配方中筛选出适合东北地区大豆-玉米轮作条件下的玉米适宜肥料用量.由于每小区包含有连续多年的肥料效应,理论上可提供更多的养分信息,生产实践上更为实用.初步研究结果表明:玉米适宜施氮量为162.1 kg/hm2.施磷不同用量之间,增产效果无明显差别.由于磷素的土壤积累,磷肥增产作用已经明显低于20世纪80年代,玉米对施磷的需求量降低,但氮素对磷素有显著的协助作用,施氮能显著促进玉米对磷素的吸收.建议当前玉米生产施磷量20kg/hm2～60.9kg/hm2.图5,表2,参13.
채용NPK삼인소다수평적불완전설계,통과련속다년적소구정위시험,재12개불동NPK용량적배방중사선출괄합동북지구대두-옥미륜작조건하적옥미괄의비료용량.유우매소구포함유련속다년적비료효응,이론상가제공경다적양분신식,생산실천상경위실용.초보연구결과표명:옥미괄의시담량위162.1 kg/hm2.시린불동용량지간,증산효과무명현차별.유우린소적토양적루,린비증산작용이경명현저우20세기80년대,옥미대시린적수구량강저,단담소대린소유현저적협조작용,시담능현저촉진옥미대린소적흡수.건의당전옥미생산시린량20kg/hm2～60.9kg/hm2.도5,표2,삼13.
This study adopts the imperfection trial design with NPK three factors and more levels.The examinations selected apt NPK dosages through a longtime continuous field test which was based on twelve levels in soybean-maize rotation district.It was more practicable that more nourishment information can be offered on theory because a longtime continuous fertilizer was effective in each examination district. The pilot study result showed that the appropriate amount of nitrogen application for maize was 162. 1kg/hm2.It was not distinct different among the dif-ferent phosphoric treatment groups. Because of the accumulation of soil phosphorus, the increased production by phosphate fertilizer was signifi-cantly lower than that of the 1980s. Phosphoric fertilizer requirement in Maize was decreased. Nitrogen had assistance role in promoting the phos-phoric absorption. The recommended amount of the phosphoric fertilizer application was 20 kg/hm2-60.9kg/hm2.