新型长效尿素对小麦、谷子氮素利用状况的影响  

Effect of New Long-effect Urea on Nitrogenous Fertilizer Absorbed by Wheat and Millet

作　　者：秦俊梅[1] 裴雪霞[1] 班桂琴[1] 陆欣[1] 

机构地区：[1]山西农业大学资源与环境学院,山西太谷030801

出　　处：《山西农业大学学报（自然科学版）》2005年第2期115-118,共4页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：山西省科委九五攻关课题 (951010)

摘　　要：为了了解施用新型长效尿素时, 小麦、谷子氮素的利用状况, 通过对冬小麦、春谷子的盆栽试验, 研究了在石灰性土壤中, 以腐植酸类物质为抑制剂加工而成的长效尿素四号, 对小麦、谷子的氮素利用状况的影响以及最佳配比。表明, 拔节期前是禾本科作物控释氮素的关键时期; 在本试验条件下, 就尿素氮的利用转化状况而言, 小麦施用长效尿素四号优于谷子。在3种不同配比中, 对各项指标加以综合评价, 又以配比1为最佳。为进一步研制麦谷类专用型长效尿素加工工艺提供理论依据。In order to know about the utilization condition of nitrogen in wheat and rice when fertilize the new long-effect urea that process by humic acid material being used as depressor, the paper study the influence and the best proportion in lime soil that fertilize the new long-effect urea No.4 to wheat and rice, The result indicate that Jointed period is the key period that gramineous crop release the nitrogen. In the condition of the experiment, the effect of the long effect urea No.4 to the wheat is better than millet as for the transformation and utilization condition of nitrogen in urea. In three kinds of different proportion, we take into the synthetical evaluation to the various index, the result indicate that No.1 is the best proportion. The paper provide the theory basis for deeply researching the processing technology of long-effect urea to wheat and rice in special-purpose.

关 键 词：长效尿素 小麦 谷子 氮素利用 

分 类 号：S143.14[农业科学—肥料学]