脲铵氮肥用作小麦追肥的肥效研究  

Effect of urea-ammonium chloride top dressing on wheat

作　　者：顾志权 秦军 范培贤 

机构地区：[1]张家港市土肥站,江苏张家港215600 [2]张家港市大新镇农业服务中心,江苏张家港215636 [3]张家港市塘桥镇农业服务中心,江苏张家港215611

出　　处：《中国土壤与肥料》2009年第2期60-63,66,共5页Soil and Fertilizer Sciences in China

摘　　要：脲铵氮肥是新近研制的复合氮肥。研究表明,脲铵氮肥用于小麦全期追肥在碱性潮土上的肥效显著好于氯化铵、尿素和碳酸氢铵,N当季吸收率达77.19%,N的当季吸收量和吸收率比氯化铵分别增24.9 kg/hm2和13.26个百分点。比尿素分别增加43.05 kg/hm2、22.98个百分点。比碳酸氢铵分别增加80.7 kg/hm2、43.02个百分点。酸性水稻土上的N吸收量和吸收率比氯化铵分别减少14.25 kg/hm2、7.58个百分点。比尿素分别增加6.15kg/hm2、3.32个百分点。比碳酸氢铵分别增加31.8 kg/hm2、16.98个百分点。在碱性潮土上的小麦平均产量8134.2 kg/hm2,极显著地高于碳酸氢铵和尿素。与单施粉状氯化铵相比虽有增产,但增产差数未达显著。在酸性水稻土上小麦产量虽比尿素、碳酸氢铵增产,但增产差数也不显著。Urea-ammonium chloride is a new kind of nitrogen fertilizer. In this study it was used as a top dressing and compared with ammonium chloride, urea, and ammonium bicarbonate. The results shewed that the absorption rate of urea-ammonium chloride was 77. 19%, and in current crop seasons on alkaline Fluvo-aquic soils it was 13.26, 22. 98, and 43. 02 percentage point significantly higher than ammonium chloride, urea, and ammonium bicarbonate, respectively. The absorption amount was 24. 9 kg · hm^-2, 43.05 kg · hm^-2, and 80. 7 kg · hm^-2 significantly higher than the latter three, respectively. Wheat yield was 8134. 2 kg · hm^-2 and significantly higher than urea and ammonium bicarbonate, respectively, but not significantly higher than powder ammonium chloride. In acidic paddy soils the absorption rate of urea - ammonium chloride was 3. 32 and 16. 98 percentage point higher than urea and ammonium bicarbonate, respectively, but 7. 58 percentage point less than ammonium chloride. Absorption of urea - ammonium chloride was 6. 15 kg · hm^-2 and 31.8 kg · hm^-2 higher than urea and ammonium bicarbonate, respectively, but 14. 25 kg · hm^-2 less than ammonium chloride. Wheat yield was higher than urea and ammonium bicarbonate, but the difference was not significant.

关 键 词：脲铵氮肥 小麦追肥 肥效 

分 类 号：S512.1[农业科学—作物学]