豆类作物主要包括菜豆、豇豆、荷兰豆。豆类蔬菜生长吸收的氮、钾较多,磷较少,但缺磷时,植株及根瘤菌的生长不良,会导致开花结荚减少、荚内籽粒少,产量降低。豆类蔬菜根瘤菌的活动与硼、钼等微量元素有关,当缺乏这些元素时,就会影响植株的正常代谢。施肥技术要点如下:育苗肥豆类蔬菜多采用育苗移栽的方法。育苗所用的营养土要选择2~3年内没有种过豆类的菜园土,用4份菜园土与4份腐熟的马粪和2份腐熟的鸡 Bean crops mainly include beans, cowpea, Holland beans. Beans and vegetables to absorb more nitrogen and potassium, phosphorus less, but lack of phosphorus, poor growth of plants and rhizobia, will lead to reduced flowering pod, fewer pods within the grain, yield decreased. Legume vegetable rhizobia activities and boron, molybdenum and other trace elements, when the lack of these elements, it will affect the normal metabolism of plants. The main points of fertilization technology are as follows: nursery and lentils vegetables and more use of seedlings transplanting methods. Nursery nutrition soil used to choose 2 to 3 years did not planted beans garden soil, with 4 vegetable garden soil and 4 parts of maturity of horse manure and 2 parts of the maturity of the chicken