[1]宿庆瑞,曹卫东,迟凤琴,等.苜蓿和草木樨腐解及养分释放规律的研究`[J].黑龙江农业科学,2010,(08):71-74.
　SU Qing-rui,CAO Wei-dong,CHI Feng-qin,et al.Study on the Decomposition and Nutrient-Releasing Regulation of Alfalfa and Sweet Clover[J].HEILONGJIANG AGRICULTURAL SCIENCES,2010,(08):71-74.
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苜蓿和草木樨腐解及养分释放规律的研究`

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2010年08 页码: 71-74 栏目: 出版日期: 2010-08-10
Title:
Study on the Decomposition and Nutrient-Releasing Regulation of Alfalfa and Sweet Clover
文章编号:
1002-2767(2010)08-0071-04
作者:
宿庆瑞1; 曹卫东2; 迟凤琴1; 于凤芝1; 王晓军1; 张久明1; 匡恩俊1; 张媛媛3
1.黑龙江省农业科学院 土壤肥料与环境资源研究所/黑龙江省土壤环境与植物营养重点实验室，黑龙江 哈尔滨 150086；
2.中国农业科学院 农业资源与农业区划研究所/农业部作物营养与施肥重点开放实验室，北京 100081；
3.东北农业大学，黑龙江 哈尔滨 150030
Author(s):
SU Qing-rui1; CAO Wei-dong2; CHI Feng-qin1; YU Feng-zhi1;  WANG Xiao-jun1; ZHANG Jiu-ming1; KUANG En-jun1; ZHANG Yuan-yuan3
1.Soil Fertilizer and Environmental Resources Institute of Heilongjiang Academy of Agricultural Science/Key Laboratory of Soil Environment and Plant Nutrition of Heilongjiang Province，Harbin，Heilongjiang 150086;
2.Key Laboratory of Crop Nutrition and Fertilization of Agriculture Ministry/Agricultural Resources and Regional Planning Institute of Chinese Academy of Agricultural Sciences,Beijing 100081;
3.Northeast Agricultural University,Harbin,Heilongjiang 150030
关键词:
苜蓿; 草木樨; 腐解; 养分释放
Keywords:
alfalfa; sweet clover;  decomposition;  nutrient-releasing
分类号:
S142
文献标志码:
A
摘要:
秋季将苜蓿、草木樨地上部茎叶(鲜样)剪碎，装入200目尼龙网袋中，水平埋置于土中10 cm深处，第二年春季开始至秋季分12次取样测定其干物质、碳、氮、磷、钾的残留量，得出干物质分解率、碳的矿化率及养分释放率。结果表明：苜蓿干物质的年分解率为75.4%，高于草木樨5.1个百分点；苜蓿碳的年矿化率为73.8%，高于草木樨4.4个百分点；苜蓿氮的年释放率为74.4%，高于草木樨18.6个百分点；苜蓿磷的年释放率为74.7%，高于草木樨23.3个百分点；苜蓿钾的年释放率为96.8%，低于草木樨0.1个百分点；2008年10月~2009年4月苜蓿、草木樨干物质的分解率分别占全年分解率的54.2%和46.4%，钾的释放率分别占全年的94.5%和92.8%。
Abstract:
Stems and leaves of alfalfa and sweet clovers(fresh samples) were cut into pieces and were put into 200 mesh nylon net bag, then were embedded into the underground at 10 cm deep horizontally in autumn.The next year sampling from spring to fall a total of 12 times to analyse their dry matter, residues of Carbon, Nitrogen, Phosphorus and Potassium, and obtained the decomposition rate of dry matter, the mineralization rate of Carbon and nutrient-releasing rate. The results showed that the annual decomposition rate of alfalfas dry matter was 75.4%, 5.1 percentage point higher than that of the sweet clovers; the annual Carbon mineralization rate of alfalfa was 73.8%, 4.4 percentage point higher than that of the sweet clover’s; the annual Nitrogen-releasing rate of alfalfa was 74.4%, 18.6 percentage point higher than that of the sweet clovers; the annual Phosphorus-releasing rate of alfalfa was 74.7%, 23.3 percentage point higher than that of the sweet clovers; the annual Potassium-releasing rate of alfalfa was 96.8%, 0.1 percentage point lower slightly than that of the sweet clovers;the decomposition rates of alfalfa and sweet clovers dry matter from october in 2008 to april in 2009 were accounted for the annual decomposition rates 54.2% and 46.4%,respectively; and the Potassium-releasing rates of alfalfa and sweet clover from october in 2008 to april in 2009 were accounted for the annual decomposition rates 94.5% and 92.8%,respectively.

参考文献/References:

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备注/Memo

基金项目：农业部公益性行业科研专项资助项目(200803029-07)

第一作者简介：宿庆瑞(1962-)，男，黑龙江省哈尔滨市人，学士，副研究员，从事土壤培肥与改良研究。E-mail:suqingrui2004@yahoo.com.cn。

更新日期/Last Update: 2014-11-06