稀土在饲料作物生产中应用的研究

The Studies on Application of Rare Eeath(RE) in Forage Production

本文利用硝酸稀土的不同浓度对河南省常见6种饲料作物进行了应用试验研究。结果表明:豆科饲料作物的最佳有效浓度为500mg/m3,禾本科饲料作物的最佳有效浓度为400～500mg/m3,在此范围下稀土能够极大地提高饲料作物的光能利用率和显著地促进饲料生产。稀土的施用方法以浸种和多次叶面喷洒效果为好。

This paper selected RE nitrate under treatments of different concentrations as experimental materials and studied the applied feasibility to forage production. The studies showed that optimum applied range of RE is 500 mg/m^3 for leguminous forage plants and 400~500 mg/m^3 for gramineous forage plants which can promote photosynthesis and forage production greatly by seed soaking or continuous leaf spraying.