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苜蓿是改良土壤的良好作物,又是飼养牲畜最有价值的一种飼料。在全国各地都有分布,尤其是西北和华北更多。苜蓿究竟是怎样一种作物?种苜蓿到底有什么好处?为了發展农業生产,应該怎样利用这个作物?現在我們就来給大家談談这些問題。苜蓿是豆科的草本植物,有多年生和一年生的不同种类。目前,我国以及其他国家栽种的主要是多年生的紫花苜蓿。这种紫花苜蓿能长到二、三尺到四、五尺高,
Earthworms are good crops for soil improvement and they are the most valuable feed for livestock. It is distributed throughout the country, especially in the northwest and north China. What kind of crops are these plants? What are the benefits of planting plants? How can we use this crop in order to develop agricultural production? Now let’s talk about these issues. Cockroaches are herbaceous plants of the legume family and have different species, both perennial and annual. At present, the perennial alfalfa is mainly planted in China and other countries. This kind of alfalfa can grow to two, three feet to four or five feet high.