CAJ | 학술논문

以头薹兼用型品种宋城大蒜为供试材料,研究了氮肥施用量对豫东黄潮土区不同肥力土壤大蒜产量的影响。结果表明：在磷、钾肥适宜水平下,高、中、低产田氮肥施用量与蒜头产量均呈二次曲线函数关系。高产田在施磷(P2O5)180.0 kg/hm2、钾(K2O)300.0 kg/hm2的条件下,最佳施氮量354.0 kg/hm2,最佳经济产量为22209.0 kg/hm2；中产田在施磷(P2O5)135.0 kg/hm2、钾(K2O)240.0 kg/hm2的条件下,最佳施氮量288.0 kg/hm2,最佳经济产量为17041.5 kg/hm2；低产田在施磷(P2O5)90.0 kg/hm2、钾(K2O)180.0 kg/hm2的条件下,最佳施氮量264.0 kg/hm2,最佳经济产量为12511.5 kg/hm2。
이두대겸용형품충송성대산위공시재료,연구료담비시용량대예동황조토구불동비력토양대산산량적영향。결과표명：재린、갑비괄의수평하,고、중、저산전담비시용량여산두산량균정이차곡선함수관계。고산전재시린(P2O5)180.0 kg/hm2、갑(K2O)300.0 kg/hm2적조건하,최가시담량354.0 kg/hm2,최가경제산량위22209.0 kg/hm2；중산전재시린(P2O5)135.0 kg/hm2、갑(K2O)240.0 kg/hm2적조건하,최가시담량288.0 kg/hm2,최가경제산량위17041.5 kg/hm2；저산전재시린(P2O5)90.0 kg/hm2、갑(K2O)180.0 kg/hm2적조건하,최가시담량264.0 kg/hm2,최가경제산량위12511.5 kg/hm2。
The effect of nitrogen application amount on garlic yield under different soil fertility levels was studied with Songcheng garlic as material in yellow fluvo-aquic soil region in eastern Henan. The results showed that when the application amount of the phosphorus and potassium fertilizer were suitable,the re-lationship between garlic yield and application amount of nitrogen fertilizer under all the soil fertility levels was fit for quadratic function. The optimal application amounts of fertilizer were phosphorus ( P2 O5 ) of 180. 0 kg/ha,potassium(K2O) of 300. 0 kg/ha,nitrogen(N) of 354. 0 kg/ha for high yield field, phos-phorus(P2O5) of 135. 0 kg/ha,potassium(K2O) of 240. 0 kg/ha,nitrogen(N) of 288. 0 kg/ha for medi-um yield filed,and phosphorus(P2O5) of 90. 0 kg/ha,potassium(K2O) of 180. 0 kg/ha,nitrogen(N) of 264. 0 kg/ha for low yield filed,the corresponding best economic outputs were 22 209. 0 kg/ha,17 041. 5 kg/ha and 12 511. 5 kg/ha,respectively.