追氮方式对寒地玉米干物质积累、转运及氮肥利用率的影响

来源 :中国土壤学会成立70周年暨“土壤科学的传承与发展”学术研讨会 | 被引量 : 0次 | 上传用户：ununszeto

【摘要】

：

　　为了探讨寒地玉米最佳追氮方式，通过大田试验，在追氮总量115 kg·hm-2 不变条件下，测定玉米主要生育时期根、茎、叶干物质量；氮肥偏生产力、农学效率及氮肥利用率，分析不同追

【作者】

：

朱宝国张春峰贾会彬王囡囡孟庆英

【机构】

：

黑龙江省农业科学院佳木斯分院,黑龙江佳木斯 154007

【出处】

：

中国土壤学会成立70周年暨“土壤科学的传承与发展”学术研讨会

【发表日期】

：

2015年期

【关键词】

：

追氮方式寒地玉米干物质积累转运氮肥利用率追肥基肥

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论文部分内容阅读

　　为了探讨寒地玉米最佳追氮方式，通过大田试验，在追氮总量115 kg·hm-2 不变条件下，测定玉米主要生育时期根、茎、叶干物质量；氮肥偏生产力、农学效率及氮肥利用率，分析不同追氮方式[不施肥(CK)；不施氮肥(PK)；基肥+追肥浅追一次(NPK+SD1)；基肥+追肥深追一次(NPK+DD1)；基肥+追肥深追二次(NPK+DD2)]对寒地玉米干物质积累、转运及氮肥不同利用率的影响。

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追氮方式对寒地玉米干物质积累、转运及氮肥利用率的影响

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