全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

竹炭包膜尿素氮释放特性的影响因素研究

Keywords: 包膜尿素,竹炭,氮素释放,氮素溶出,氨挥发

Full-Text   Cite this paper   Add to My Lib

Abstract:

利用竹炭和高分子聚合物为包膜材料,制得不同包膜厚度的BCCU1和BCCU2两种竹炭包膜尿素;并以普通尿素作比较,对其养分缓释性能进行研究。结果表明,竹炭包膜尿素在各种土壤中的氮溶出率和氨挥发量均低于普通尿素。竹炭包膜尿素的氮溶出率随肥水比的增大和浸提温度的升高而显著增大,并且浸提温度越高,氮溶出率增加的幅度越大;浸提液中离子浓度越大,竹炭包膜尿素中氮溶出率越小;供试氮肥在沙质红壤土中的养分溶出率远高于其在石灰岩风化土中的溶出率。不同土壤类型对氮肥的氨挥发损失影响较大,供试氮肥在各种土壤中的氨累积挥发量大小顺序均为:沙质红壤土>石灰岩风化土>粘性红壤土;随土壤含水量的增加,普通尿素和竹炭包膜尿素的氨挥发量都递增,但后者氨挥发量受含水量增加的影响较前者小。

References

[1]  Valkanas G N.Controlled release coating from wax and rosin particle fox fertilizer[P].US 5137563-A,1992-08-11.CA 122:132147.
[2]  Hovens I A P,Jongboom R O J,Stuut P I.Composition for the eantrolled release of active substances[P].WO 9930691-A2,1999-06-24.CA 131:49488.
[3]  Zhang H,Kim Y,Dutta P K.Controlled release of paraquat from surface-modified zeolite[J].Microporous and Mesoporous Materials,2006,88(1-3):312-318.
[4]  王德汉,彭俊杰,廖宗文.木质素包膜尿素(LCU)的研制及其肥效试验[J].农业环境科学学报,2003,22(2):185-188.WANG De-ban,PENG Jun-jie,HAO Zong-wen.Preparation of urea coated with lign in (LCU) and its fertilizer efficiency test[J](In Chinese).Journal of A gro-environmental Science,2003,22(2):185-188.
[5]  徐和昌,崔镝,李秀君.脲醛树脂包膜缓释氮肥释放速率的测定[J].石油化工,1994,23(12):816-819.XU He-chang,CUI Di,LI Xiu-jun.Determination of releasing rate of ni trogen fertilizer coated with urea-formaldehyde resin[J](In Chinese).Petrochemical Technology,1994,23(12):816-819.
[6]  中国土壤学会农业化学专业委员会.土壤农业化学常规分析方法[M].北京:科学出版社.1983.Committee of agricultural chemistry of soil science society of china.Conventional analysis methods of soil agricultural chemistry[M](ln Chi-nese).Beijing:Science Press,1983.
[7]  凌莉,李世清,李生秀石灰性土壤氨挥发损失的研究[J].土壤侵蚀与水土保持学报,1999,5(6):119-122.LING Li,LI Shi-qing,LI Sheng-xiu.Study on ammonia volatilization from calcareous soil[J] (In Chinese).Journal of Soil Water Conservation,1999,5(6):119-122.
[8]  GB/T11894-1989.水质总氮的测定:碱性过硫酸钾消解紫外分光光度法[S].北京:中国标准出版社,2001.GB/T11894-1989.Water quality-Determination of total nitrogen-Al-kaline potassium persulfate digestion-UV spectrophotometrie method[S] (In Chinese).Beijing:Standards Press of China,2001.
[9]  Kochba M,Cambash S,Avnimelech Y.Studies on Slow-release fertilizers:I.Effect of temperature,soil moisture and water vapor pres-sure[J].Soil Sci,1990,149:339-343.
[10]  Gambash S,Kochba M,Avnimelech Y.Studies on Slow-release fertilizers:Ⅱ.A method for evaluation of nutrient release rate from slow-releasing fertilizers[J].Soil Sci,1990,150(1):446-450.
[11]  Zhang M,Nyborg M,Ryan J T.Determining permeability of coating of polymer-coated urea[J].Fert Res,1994,38:47-51.
[12]  熊又升.土壤中包膜肥料氮磷释放运移及作物吸收利用[M].武汉;华中农业大学,2001.XIONG You-sheng.Release transportation of N and P from coated fertilizers in soils and absorption utilization by crop[M] (In Chinese).Wuhan:Huazhong Agricultural University,2001.
[13]  Reynolds C M,Wolf D C.Influence of urcase activity and soil properties on ammonia volatilization from urea[J].Soil Sci,1987,143:418-425.
[14]  王秀君,罗胜国.尿素肥料的影响因素及其施用技术[J].土壤学进展,1995,23(1):21-24.WANG Xiu-jun,LUO Sheng-guo.The influence factor of urea fertiliz-ers and its application technique[J] (In Chinese).Progress in Agrology,1995,23(1):21-24.
[15]  同延安,张文孝,韩稳社,等.不同氮肥种类在填土及黄锦土中的转化[J].土壤通报,1994,25(3):107-108.TONG Yan-an,ZHANG Wen-xiao,HAN Wenshe,et al.The trans-forming of different nitrogen fertilizers in loessial soils[J] (In Chinese).Chinese Journal of Soil Science,1994,25(3):107-108.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133