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| 硝化抑制剂型包膜复合肥的氮素释放特征及其对大白菜生长的影响 | |
| 引用本文： | 侯俊,董元杰,李光宗,范振义,刘双.硝化抑制剂型包膜复合肥的氮素释放特征及其对大白菜生长的影响[J].水土保持学报,2011,25(6):250-253,259. |
| 作者姓名： | 侯俊 董元杰 李光宗 范振义 刘双 |
| 作者单位： | 1. 山东农业大学资源与环境学院,土肥资源高效利用国家工程实验室,国家缓控释肥工程技术研究中心,作物生物学国家重点实验室,山东泰安,271018 2. 山东农业大学资源与环境学院,土肥资源高效利用国家工程实验室,国家缓控释肥工程技术研究中心,作物生物学国家重点实验室,山东泰安,271018;山东金正大生态工程股份有限公司,山东,临汰,276700 3. 山东省济阳县农业局,山东,济阳,251400 |
| 基金项目： | 国家“十二五”科技支撑计划(2011BAD11B01,2011BAD11B02); 国家“948”重点项目(2011-G30); 国家自然科学基金(30871593) |
| 摘 要： | 以粉煤灰为主要包膜材料,同时添加硝化抑制剂双氰胺(DCD),对普通复合肥进行包膜,制备了DCD含量分别为0%,1%.2%和4%的4种包膜缓释复合肥,并进行土壤培养试验和田间试验,研究包膜缓释肥的氮素释放特征及其对大白菜生长的影响.结果表明:(1)硝化抑制剂与粉煤灰包膜结合能有效地保持氮素养分较长时间处于NH4+-N形态,减少了因转化为N3--N形态而造成的养分淋溶损失.4种自制包膜肥的缓释效果为:4%DCD>2%DCD>1%DCD>0%DCD.(2)在施肥水平相同的情况下,与普通复合肥相比,4种自制包膜复合肥均能提高大白菜中后期叶绿素含量、净光合速率(Pn)、蒸腾速率(E),但与树脂包膜肥相比差异不显著,表现为:1%DCD≈2%DCD>0%DCD>4%DCD.与普通复合肥相比,除DCD含量为4%的包膜肥减产减收外,其他3种自制包膜肥使生物产量提高14.0%～17.2%,经济效益提高14.5%～17.5%,与树脂包膜肥相比差异不显著;所有包膜复合肥与普通复合肥相比,能提高含糖量、糖酸比及维生素C含量和降低硝酸盐及有机酸含量,且与施用树脂膜复合肥的效果相当. |
| 关 键 词： | 包膜复合肥 释放特征 抑制剂 粉煤灰 大白菜 |
N-release Characteristics of Coated Compound Fertilizers Added by Nitrification Inhibitor and Their Effects on Chinese Cabbage |
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| HOU Jun,DONG Yuan-jie,LI Guang-zong,FAN Zhen-yi,LIU Shuang.N-release Characteristics of Coated Compound Fertilizers Added by Nitrification Inhibitor and Their Effects on Chinese Cabbage[J].Journal of Soil and Water Conservation,2011,25(6):250-253,259. | |
| Authors: | HOU Jun DONG Yuan-jie LI Guang-zong FAN Zhen-yi LIU Shuang |
| Institution: | HOU Jun1,DONG Yuan-jie1,3,LI Guang-zong2,FAN Zhen-yi1,LIU Shuang1(1.College of Resources and Environment,Shandong Agricultural University,Chinese National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources,Chinese National Engineering Research Center for Slow/Controlled Release Fertilizers,State Key Laboratory of Crop Biology,Taian,Shandong 271018,2.Shandong Province Jiyang County Bureau of Agriculture,Jiyang,Shandong 251400,3.Shandong Kingenta Ecological Engineering Co.,Ltd... |
| Abstract: | Four homemade compound fertilizers with nitrification inhibitor dicyandiamide(DCD) being ratio 0%,1%,2% and 4%,separately were prepared out of common compound fertilizer by coating them with fly ash as major material.Soil incubation experiment and field experiment were used to study N-release characteristics of the fertilizers and their effects on Chinese cabbage.Results showed that:(1)Using four kinds of fertilizers could keep N as NH+4-N for a long time,consequently,reduce the risk of nitrate N losses.The... |
| Keywords: | coated compound fertilizer release characteristics inhibitor fly ash Chinese cabbage |
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