CAJ | 학술논문

以大和长芋为试材，研究氮、磷、钾配方施肥对山药产量的影响，结果表明：适量施用氮肥、磷肥、钾肥可以提高山药的产量，但是过量施用会导致产量下降；山药产量与氮肥、磷肥、钾肥的施肥量之间存在着显著的回归关系，根据肥料效应方程得出，666．7m2山药最高产量为3125．76 kg，其对应的N、P2 O5、K2 O施用量分别为65．92、32．62、65．82 kg，最佳经济产量为3093．25 kg，其对应的N、P2 O5、K2 O施用量分别为56．11、26．34、44．12 kg。
이대화장우위시재，연구담、린、갑배방시비대산약산량적영향，결과표명：괄량시용담비、린비、갑비가이제고산약적산량，단시과량시용회도치산량하강；산약산량여담비、린비、갑비적시비량지간존재착현저적회귀관계，근거비료효응방정득출，666．7m2산약최고산량위3125．76 kg，기대응적N、P2 O5、K2 O시용량분별위65．92、32．62、65．82 kg，최가경제산량위3093．25 kg，기대응적N、P2 O5、K2 O시용량분별위56．11、26．34、44．12 kg。
Using Japanese yam as test material , the effects of N , P and K formula fertilization on yield of yam were studied .The results showed that proper application of nitrogen , phosphorous and potassium fertilizer could increase the yield of yam , while excessive application would result in the yield decline .There was sig-nificant regressive relation between the yield of yam and the application amount of nitrogen , phosphorous and potassium fertilizer.According to the fertilizer effect equation , the maximum yield of yam per 666.7m2 was 3 125.76 kg and corresponding application amount of N , P2 O5 , K2 O was 65.92, 32.62, 65.82 kg respec-tively;the optimal economic yield of yam per 666.7m2 was 3 093.25 kg and corresponding application amount of N, P2O5, K2O was 56.11, 26.34, 44.12 kg respectively.