培土对紫花苜蓿(Medicago sativa L.)抗寒性、抗旱性及产草量的影响

The Effect of Replenishing Soil on Frost Resistance, Drought Resistance and Yield Production of Alfalfa (Medicago sativa L.).

黑龙江省西部草原地区播种的紫花苜蓿，常遭受季节性冻害和旱害，严重影响了畜牧业生产及草原建设。为此，我们在大庆地区（隶属于松嫩草地）进行了紫花苜蓿（ＭｅｄｉｃａｇｏｓａｔｉｖａＬ．）种植地的秋后培土实验。结果表明，入冬前培土是一种非常经济有效的方法，可显著提高紫花苜蓿的抗寒性和抗旱性，从而保证牧草产量的稳定和提高。

The planted alfalfa (Medicago sativa L.) in western grasslands of Heilongjang province, often suffer seasonal desastrous frost and drought. There fore, we have carried out the experiment of replenshing soil for alfala in daqing areas in late autumn. The results show that it is an economical and efficient way to replenish soil for alfalfa before winter. Replenishing soil for alfalfa can strengthen its forst resistance and drought resistance and raise its yield production.