摘要
以黄瓜品种"驰誉A5"、"津优35"为试材,进行日光温室氮肥总量控制试验,研究目标产量为52 500kg/hm^2,磷、钾施用纯量分别为127.5、180.0kg/hm^2条件下的氮肥施用量。结果表明:纯氮用量达169kg/hm^2时黄瓜品种农艺性状、经济产量、肥料投入与收益均最佳。经验证优化得出试验区温室黄瓜最优施肥比例为N∶P_2O_5∶K_2O=11.0∶8.5∶12.0;对于生长量大、生育期较长的品种,秋延后或越冬茬栽培时需增加生长中后期的追肥次数和追肥量。
Taking cucumber varieties‘Chiyu A5＇,‘Jinyou 35＇as test materials,carried out the nitrogen control experiment in solar greenhouse.Under the conditions that the optimization target yield of 52 500kg/hm^2,the fertilizer that the P fertilizer（P_2O_5）and K fertilizer（K_2O）were applied at 127.5kg/hm^2 and 180.0kg/hm^2.The results showed that the pure nitrogen amount up to 169kg/hm^2,cucumber varieties agronomic characters,economic yield,fertilizer input and benefits all the best.After verified and optimized,the results also showed that the best cucumber fertilizer proportion of N∶P_2O_5∶K_2O=11.0∶8.5∶12.0was applied to experimental zone of plastic greenhouse;the cucumber varieties that larger growth and long growth period should increase nitrogen fertilizer topdressing frequency and fertilizer quantity in growth later period under the condition of autumn delay or overwintering cultivation.
出处
《北方园艺》
CAS
北大核心
2016年第7期162-165,共4页
Northern Horticulture
关键词
黄瓜
氮肥施用量
产量
施肥配方
cucumber
application levels of nitrogen fertilizer
yield
fertilization formula
