论文部分内容阅读
在许多土壤贫瘠而且缺乏植物所必需的微量元素的地区,都要进行草地的灌溉并施用高额矿物肥料。虽然往往施用微量元素肥料并没有明显的增产效果,但在农业实践里仍在大量应用。众所周知,对酸性土壤的豆科牧草施用钼肥、在含碳酸盐的钙质土壤里施用硼肥,以及对栽培在排水良好的泥炭沼泽土壤上的禾本科牧草施用铜都有作用。近年来,由于强调饲料生产,对微量元素问题则引起更大的重视。因为在家畜日粮中微量元素的缺乏,导致目前家畜奶和肉品的生产力下降,影响到再生产的效能。在草地集约管理的条件下,为研究草地饲料品质,以及确定个别微量元素肥料对草地饲料价值的基本指标方面的影响,我们从1976-1978年在莫斯科省、波顿里斯克区的《伏罗诺夫》国营农场进行了实验。
Irrigated grasslands and applied high mineral fertilizers are found in many soils that are barren and lack trace elements essential for the plant. Although the application of trace element fertilizers is often not obvious yield increase, it is still widely used in agricultural practice. It is known that the application of molybdenum fertilizer to leguminous pastures in acid soils, the application of boron fertilizers in carbonate-containing calcareous soils, and the application of copper to grasses grown in well-drained peat swamps. In recent years, due to emphasis on feed production, the issue of trace elements has attracted more attention. Because of the lack of trace elements in livestock diets, the current productivity of livestock milk and meat products is declining, affecting the efficiency of reproduction. Under intensive management of grasslands, in order to study the quality of grassland feeds and to determine the impact of individual micronutrient fertilizers on the basic indicators of grassland feed values, we conducted a study from 1976 to 1978 in the Voronoi Nofu "state farm experiment.