自然界里所有的植物都依一定的自然规律,组合成自然群落。在农田作物栽培中,人们为了充分利用光、热、水、土的潜力,夺得作物高产,常模仿自然群落的结构,对作物采取单、混、轮、套种等形式,配置出各种各样的人工群落。在我国砂土旱作地区,常见花生和其它作物共建的各种田间结构就是例子,在这类群落组合中,花生起着重要作用。花生是一种耐砂、耐旱和较耐瘠薄的豆科植物。枝叶柔软,含有丰富的蛋白质和多种营养成分,为家畜适口性最佳饲料之一;种子是高脂肪、高蛋白的食品和工业原料;根系上共生着大量的根瘤菌,也是农民广泛栽培的固氮养地 All plants in nature are grouped into natural communities according to certain natural laws. In farmland crop cultivation, in order to make full use of the potential of light, heat, water and soil, people obtain the high yield of crops and often imitate the structure of natural communities. They take the forms of single, mixed, round and intercropping of crops, Kind of artificial community. In our sand and soil cultivation area, a variety of field structures, such as common peanut and other crops, are co-constructed. Peanut plays an important role in this kind of community assemblage. Peanut is a sand, drought and barren legumes. Branches and leaves are soft, rich in protein and a variety of nutrients, is one of the best feed for palatability of livestock; seeds are high-fat, high-protein foods and industrial raw materials; rhizobium symbiotic large root system, but also widely cultivated farmers Nitrogen fixation