磷肥施用量对不同肥力土壤大蒜产量的影响

Effect of Phosphate Fertilizer Application Amount on Yield of Garlic with Different Fertility Levels

以头薹兼用型大蒜为试验材料,采用完全随机区组设计,设置不同土壤肥力(高、中、低)大蒜田、不同磷肥用量处理,以不施磷肥为对照(CK),研究了磷肥对不同肥力土壤大蒜产量的影响。结果表明:适量增施磷肥可显著提高大蒜产量。高产田施肥量为氮(N)375.0 kg/hm2、磷(P2O5)180.0kg/hm2、钾(K2O)300.0 kg/hm2,大蒜最佳经济产量为23 173.3 kg/hm2;中产田施肥量为氮(N)315.0 kg/hm2、磷(P2O5)138.0 kg/hm2、钾(K2O)240.0 kg/hm2,大蒜最佳经济产量为18 323.1 kg/hm2;低产田施肥量为氮(N)255.0 kg/hm2、磷(P2O5)111.0 kg/hm2、钾(K2O)180.0kg/hm2,大蒜最佳经济产量为13 060.7 kg/hm2。

The effect of application amounts of phosphate fertilizer on yield of garlic-sprout typed garlic with different fertility levels（ high,medium,low） was studied by completely random design. The results showed that the moderate application amount of phosphate fertilizer could significantly increase garlic yield. The optimal application amounts of fertilizer for high yield field,medium yield filed and low yield filed were respectively nitrogen （ N） of 375. 0 kg / ha, phosphorus （ P2 O5 ） of 180. 0 kg / ha, potassium （K2 O） of 300. 0 kg / ha;nitrogen（N） of 315. 0 kg / ha,phosphorus（P2 O5 ） of 138. 0 kg / ha,potassium （K2 O） of 240. 0 kg / ha;nitrogen（N） of 255. 0 kg / ha,phosphorus（P2 O5 ） of 111. 0 kg / ha,potassium （K2 O） of 180. 0 kg / ha,the corresponding best economic outputs were 23 173. 3 kg / ha,18 323. 1 kg / ha and 13 060. 7 kg / ha,respectively.