CAJ | 학술논문

【目的】为氮、磷、钾肥在小麦生产中的科学施用提供理论与技术依据。【方法】以扬麦12为供试品种．采用“3414”最优回归设计研究不同施肥方案对小麦经济性状和产量的影响，并通过拟合三元二次和一元二次肥效模型，确定小麦的最佳推荐施肥量。【结果】施氮、磷、钾肥小麦的增产率分别为306．50％、8．49％和4．24％；不施氮、磷、钾肥小麦的相对产量为24．60％、92．17％和95．93％、土壤地力贡献率为21．82％，萧山区土壤氮、磷、钾的丰缺等级分别为极低、中、高。[结论]在该试验条件下，施氮效果最好，磷肥次之，钾肥有一定增产增收效果；结合当地生产实际，确定氯、磷、钾肥最佳经济推荐施用量分别为266．40、73．20、53．70kg／hm2。
【목적】위담、린、갑비재소맥생산중적과학시용제공이론여기술의거。【방법】이양맥12위공시품충．채용“3414”최우회귀설계연구불동시비방안대소맥경제성상화산량적영향，병통과의합삼원이차화일원이차비효모형，학정소맥적최가추천시비량。【결과】시담、린、갑비소맥적증산솔분별위306．50％、8．49％화4．24％；불시담、린、갑비소맥적상대산량위24．60％、92．17％화95．93％、토양지력공헌솔위21．82％，소산구토양담、린、갑적봉결등급분별위겁저、중、고。[결론]재해시험조건하，시담효과최호，린비차지，갑비유일정증산증수효과；결합당지생산실제，학정록、린、갑비최가경제추천시용량분별위266．40、73．20、53．70kg／hm2。
[Objective] The aim was to provide the theoretical and technical basis for seientific applieation of nitrogen, phosphonls and potassium fertilizer on wheat. [Method] The effect of the different fertilization program on economic trait and yield of wheat variety Yangmail2 was experimented with the optimal regression design （＂3414＂） and the reeommended fertilization for wheat was determined. [Result] The yield increase rates of wheat fertilized with nitrogen, phosphorus and potassium were 306.50%, 8.49% and 4.24%. The relative yields of wheat fertilized without nitrogen, phosphorus or potassium were 24.60%, 92.17% and 95.93%. The fertility rate was 21.82%. The levels of abundance or deficiency of nitrogen, phosphorus and potassium in soils were extremely low, middle and high, respectively. [Conclusionl In the experimental condition, the nitrogen fertilization could result in the best efficiency. Then the phosphorus and last the potassium, for a certain effect on wheat yiehl-inereasing. Combined with local production practice, the best economic N, P and K fertilization recommended was 266.40, 73.20 and 53.70 kg/hm2, respectively.