摘要
[目的]研究连续施肥对塿土生化强度的影响。[方法]在小麦-玉米轮作区进行有机肥改土长期定位试验。设置7个不同的施肥处理：无肥、化肥、低秸＋化肥（休闲）、低秸＋化肥、中秸＋化肥、高秸＋化肥和厩肥＋化肥,研究不同施肥处理对土壤的培肥效应。[结果]长期施肥条件下,土壤的呼吸作用强度、氨化作用强度、硝化作用强度、纤维素分解强度均明显提高,其中氨化作用强度提高了41.67%-404.17%,硝化作用强度提高了56.78%-388.39%,纤维素分解强度提高了25.52%-98.64%。与单施化肥相比,秸秆＋化肥、厩肥＋化肥对土壤的培肥效果较好。[结论]连续施肥可增加土壤养分含量及供应强度,提高土壤肥力。
[Objective] The study aimed to research the effect of continuous fertilization on biochemistry intensity of lou soil.[Method] In rotation areas of wheat and corn,long-term location test of organic fertilizer improving soil was taken and 7 different fertilization treatments such as without fertilizer,chemical fertilizer,low rate straw＋ chemical fertilizer（fallow）,low rate straw＋ chemical fertilizer,medium rate straw＋ chemical fertilizer,high rate straw ＋ chemical fertilizer and animal manure ＋ chemical fertilizer were set up to study the of different fertilization treatments on improving soil fertility.[Result] Under the condition of long-term fertilization,the intensity of respiration,ammonification,nitrification and cellulose decomposition of soil were all increased obviously,among which,the intensity of ammonification was increased by 41.67%404.17%,that of nitrification by 56.78%-388.39% and that of cellulose decomposition by 25.52%-98.64%.Compared with singal application of chemical fertilizer,the improving effect of soil fertility with straw ＋ chemical fertilizer and animal manure ＋ chemical fertilizer were better.[Conclusion] The soil nutrient content and supply intensity could be enhanced and the soil fertility could be increased by continuous fertilization.
出处
《安徽农业科学》
CAS
北大核心
2008年第27期11859-11860,11889,共3页
Journal of Anhui Agricultural Sciences
关键词
连续施肥
土壤生化强度
塿土
Continuous fertilization
Biochemistry intensity of soil
Lou soil
作者简介
高瑞（1978-），女，山东菏泽人，讲师，从事土壤生物学研究。
