The Impact of Modified Starch-coating-urea on Nitrogen Release Characteristics and Biological Effect

doi:10.7668/hbnxb.2011.05.038

Abstract

Abstract: Water dissolution rate method,soil column leaching method and pot experiment were used to study the nitrogen release and biological effect of Urea which coated by modified starch.The results showed that:during the water dissolution rate method and soil column leaching method,the nitrogen release of FCU had many differences with the RCU-J and RCU-C,but the nitrogen release of RCU-J and RCU-C was similar,and compared with in water,the nitrogen release rate of FCU in soil reduced significantly,and the releasing curve changed greatly.During the corn pot experiment at the seedling stage,under the condition of excessive and normal water,FCU promoted the dry matter weight and nitrogen uptake compared with Urea.Under the condition of drought stress,the reduction of the two indexes of FCU were relatively moderate compared with RCU.According to the correlation analysis of the results measured by soil column leaching method and pot experiment of FCU,the two methods had significant correlation,the soil column leaching method can be used to evaluate FCU,and it was better to reflect the actual slow-release characteristics by using the two methods together.

Key words: Modified starch-coating-urea, Nitrogen release characteristics, Biological effect

CLC Number:

S145.6

WU Huan-huan, DOU Fei, WANG Li-ying, CHEN Li-li, ZHAI Cai-xia, LI Ruo-nan, ZHANG Yan-cai, HUO Xi-liang. The Impact of Modified Starch-coating-urea on Nitrogen Release Characteristics and Biological Effect[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(5): 199-204. doi: 10.7668/hbnxb.2011.05.038.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.7668/hbnxb.2011.05.038

http://www.hbnxb.net/EN/Y2011/V26/I5/199

References

[1] 陈强.缓释肥料的研究进展[J].宝鸡文理学院学报:自然科学版,2000,20(3):189-193.
[2] 吴欢欢,李若楠,张彦才,等.我国缓／控释肥料发展现状、趋势及对策[J].华北农学报,2009,24(S2):263-267.
[3] 邹应斌,贺帆,黄见良,等.包膜复合肥对水稻生长及营养特性的影响[J].植物营养与肥料学报,2005,11(1):57-63.
[4] 王红飞,王正辉.缓／控释肥料的新进展及特性评价[J].广东化工,2005(8):86-90.
[5] 赵琳琳,熊汉国.包膜化肥的特点及应用概况[J].湖北农业科学,2006,45(2):188-190.
[6] 杨同文,尹飞,杨志丹,等.包膜肥料研究现状与进展[J].河南农业大学学报,2003,37(2):141-144.
[7] Flannery R L,Busscher W J.Use of synthetic polymer in potting soils to improve water holding capacity[J].Commun Soil Sci Plant Ana,1982,13:103-1l1.
[8] 杜昌文,周健民,王火焰.聚合物包膜肥料研究进展[J].长江流域资源与环境,2005,14(6):725-730.
[9] Fujisawa E,Kobayashi A,Han Y T.A Mechanism of nutrient release from resin-coated fertilizers and its estimation by kinetic methods Ⅳ.Relation between release of nitrogen from resin-coated urea and water vapor pressure in saturated salt solutions[J].Jap J Soil Sci Plant Nutr,2003,69:555-560.
[10] Blouin M,Rindt W,Moore O.Sulfur coated fertilizers from controlled release:pilot plant production[J].Agric Food Chem,1971,19:801-808.
[11] 杜建军,廖宗文,毛小云,等.包膜缓／控释肥养分释放特性评价方法的研究[J].磷肥与复肥,2003,18(2):11-13,40.
[12] 鲍士旦.土壤农化分析[M].3版.北京:中国农业出版社,2000:56-109,263-271.
[13] 张玉凤,曹一平,陈凯,等.高聚物包膜尿素的氮素释放特性及其评价方法[J].中国农业大学学报,2003,8(5):83-87.
[14] 杜建军,廖宗文,毛小云,等.控／缓释肥在不同介质中的氮素释放特性及其肥效评价[J].植物营养与肥料学报2003,9(2):165-169.
[15] 侯翠红.控制释放肥料养分释放特性的研究[J].磷肥与复肥,1998,13(4):6-8.
[16] 王向峰,刘树庆,宁国辉.缓控释肥料的氮素利用率及控制效率研究[J].华北农学报,2006,21(增刊):38-41.
[17] 徐玉鹏,赵忠祥,张夫道,等.缓／控释肥料的研究进展[J].华北农学报,2007,22(增刊):190-194.

Please choose a citation manager

Content to export