CAJ | 학술논문

试验在辽宁省葫芦岛市绥中县进行，研究了滴灌条件下不同施肥处理即常规肥料与缓释肥料对马铃薯块茎产量、肥料利用率及土壤养分变化的影响。结果表明，与常规肥料相比，缓释肥处理可以显著提高马铃薯产量及肥料利用效率，可使块茎增产13．5％，肥料利用率提高2．1％～8．4％。缓释肥处理养分释放规律与作物生长趋势比较一致，避免了常规肥料造成的前期养分释放较高、后期供应不足的现象，是一种比较安全的减投增效、有利于农业可持续发展的有效方法。
시험재요녕성호호도시수중현진행，연구료적관조건하불동시비처리즉상규비료여완석비료대마령서괴경산량、비료이용솔급토양양분변화적영향。결과표명，여상규비료상비，완석비처리가이현저제고마령서산량급비료이용효솔，가사괴경증산13．5％，비료이용솔제고2．1％～8．4％。완석비처리양분석방규률여작물생장추세비교일치，피면료상규비료조성적전기양분석방교고、후기공응불족적현상，시일충비교안전적감투증효、유리우농업가지속발전적유효방법。
The field experiment was undertaken in suizhong country,Huludao city,Liaoning province.Theeffect of different fertilizer treatments,namely,farmer conventional fertilization (FP)and controlled releasefertilizer (CRF)on the production of potato and utilization efficiency of fertilizer as well as variations of soil available nutrient contents was investigated.The results showed that CRF could promote production increase ofpotato by a value of 13.5% in contrast to that of FP treatment,and enhance of utilization efficiency of fertilizerby 2.1% ~8.4%.The soil available nutrient was lower in the beginning of potato growth and relative higherin the peak period of potato growth for CRF treatment,which was consistent with the demand tread of potatogrowth for nutrients.Therefore,CRF should be recommend to be a good method of fertilizer application for theproduction increase of potato and for sustainable development of agriculture.