Changes in the chemical composition of cattle dung in grasslands

被引：0
|
作者：
Rodríguez, I [1 ]
Crespo, G [1 ]
Torres, V [1 ]
Fraga, S [1 ]
机构：
[1] Inst Ciencia Anim, San Jose De Las Lajas, La Habana, Cuba
来源：
CUBAN JOURNAL OF AGRICULTURAL SCIENCE | 2001年 / 35卷 / 03期
关键词：
cattle dung; decomposition; chemical changes; nutrient recycling;
D O I：
暂无
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
Changes in N, P, K, Ca and Mg contents of cattle dung were determined on a grassland area throughout a year. A complete decomposition of cattle dung occurred during the dry season (from 150 to 180 days) and the rainy season (from 90 to 120 days), A reduction in these elements was observed with the decomposition of cattle dung in the dry season, however in the rainy season, the trend was variable. A 75% decrease in K concentration during the first 30 days of decomposition was found, The effect of biological activity and chemical composition of cattle dung on the changes produced as well as the influence of climatic factors on decomposition is discussed.
引用
收藏
页码：285 / 290
页数：6
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