云南省反刍家畜饲养基地岩石—土壤—饲料系统中矿质元素含量的相关性研究

The Research of Relationship of Mineral Concentration in Rock, Soil and Forages in Ruminant Feeding Base of Yunnan Province

为了更好地评价云南省区域性反刍家畜饲料矿物质元素营养状况,并按照调盈补缺的原则科学合理地制作反刍家畜矿物质元素添加剂。对云南省反刍家畜主要饲养基地的岩石、土壤和饲料中的各矿物质元素进行分析测定,同时将岩石—土壤—饲料系统中各元素含量在空间不同方向上进行了相关统计。结果发现:在水平方向上,从岩石、土壤到饲料,钴、硒、铁和锰4种元素之间一直呈较强的正相关,表现了该系统的统一。垂直方向岩石与土壤之间的钴、钾、镁和锰的相关系数均大于0 3(n=149),其余各元素的相关系数也都为正值;土壤—饲料之间,综合各主要饲料,土壤和饲料中的铁、钴、镁、硒和铜元素间的相关性最好,而岩石和饲料间各矿物质元素相关性较差,对区域性饲料矿物质元素营养价值的评价没有太大的指导意义。

For formulating the ruminant mineral premix according to the rule of adjusting the redundant and adding the absent, we determined the minerals concentration of rock, soil and forages in main feeding base of Yunnan province for better understanding and evaluating the ruminant mineral status in different district of Yunnan province, whereas calculating the correlation coefficient in different spatial aspect from rock, soil to forages. The results showed as follow: the correlation coefficient among the Co, Se, Fe and Mn always is more positively higher than others in rock, soil and forages in horizontal aspect. The correlation coefficient of Co, Se, Fe and Mn is more than 0.3 from rock to soil (n=149) in vertical aspect, whereas the others is positive. From soil to forages, the relationship of Co, Fe, Mg, Se and Cu is higher than others elements. However, the correlation coefficient from rock to forages is so low that it is no use for supervising animal production.