贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2015年
1期
117-119
,共3页
大白菜%氮肥施用%产量%氮肥利用
大白菜%氮肥施用%產量%氮肥利用
대백채%담비시용%산량%담비이용
Chinese cabbage%nitrogen fertilizer application%yield%nitrogen utilization
为优化大白菜生产氮肥适宜用量，提高产量和效益，开展了露地秋季大白菜氮肥总量控制试验，探讨不同施氮量对大白菜经济性状、产量和氮肥利用的影响。结果表明，不同施氮量对大白菜经济性状、产量和氮肥利用效率影响明显，合理的氮肥用量可改善大白菜经济性状，提高产量水平和氮肥利用效率；施氮量为12 kg／667m2时，大白菜单株重、单株净重与净菜率和株高、菜球直径等经济性状最好，产量最高，单产达3268．7 kg／667m2，氮肥利用率为34．4％，氮肥农学效率为37．3 kg／kg 。
為優化大白菜生產氮肥適宜用量，提高產量和效益，開展瞭露地鞦季大白菜氮肥總量控製試驗，探討不同施氮量對大白菜經濟性狀、產量和氮肥利用的影響。結果錶明，不同施氮量對大白菜經濟性狀、產量和氮肥利用效率影響明顯，閤理的氮肥用量可改善大白菜經濟性狀，提高產量水平和氮肥利用效率；施氮量為12 kg／667m2時，大白菜單株重、單株淨重與淨菜率和株高、菜毬直徑等經濟性狀最好，產量最高，單產達3268．7 kg／667m2，氮肥利用率為34．4％，氮肥農學效率為37．3 kg／kg 。
위우화대백채생산담비괄의용량，제고산량화효익，개전료로지추계대백채담비총량공제시험，탐토불동시담량대대백채경제성상、산량화담비이용적영향。결과표명，불동시담량대대백채경제성상、산량화담비이용효솔영향명현，합리적담비용량가개선대백채경제성상，제고산량수평화담비이용효솔；시담량위12 kg／667m2시，대백채단주중、단주정중여정채솔화주고、채구직경등경제성상최호，산량최고，단산체3268．7 kg／667m2，담비이용솔위34．4％，담비농학효솔위37．3 kg／kg 。
To optimize nitrogen fertilizer application amount and enhance yield and benefit of Chinese cabbage,a control test of total nitrogen amount was conducted on Autumn Chinese cabbage in open field. Results:Different nitrogen application amount had significant influence on economic traits,yield and nitrogen utilization rate of Chinese cabbage,which could be improved with rational nitrogen application amount.When nitrogen application amount was 12 kg/667m2 , economic traits, including per plant weight,net weight per plant,net head rate,plant height and diameter,reached the best,the yield, nitrogen utilization rate and nitrogen agronomic efficiency reached 3 268.7 kg/667m2 , 34.4% and 37.3 kg/kg respectively.
