因连年种植,西瓜、黄瓜、西红柿、茄子等作物的土壤病害逐渐积累,最后导致减产或绝收。嫁接即能很好地起到防病、提高产量的作用,是一项增产增收的先进科学的蔬菜栽培技术。嫁接的好处是: 一、提高土地的利用率因连年种植的结果,特别是温室大棚蔬菜连茬种植同种蔬菜,使病害逐渐积累,虫害逐年上升,使蔬菜产量和品质下降。嫁接技术的引进和应用,由于砧木的野生性较强,抗逆性增强,嫁接后使被嫁接蔬菜增强了抗逆性,同块土地种植的年份相对延长,提高了土地的利用率。二、防止病害的发生黄瓜、西瓜枯萎病,茄子黄萎病,西红柿根腐病、青枯病、萎蔫病是这四种蔬菜的致命病害,一旦发病,面临着绝产和换茬。嫁接就能很好地防止病害的发生和同块土地连茬种植。据试验,嫁接后西瓜、黄瓜、西红柿、茄子无病害发生,而未嫁接的 Due to successive years of planting, watermelon, cucumber, tomato, eggplant and other crops gradually accumulated soil diseases, and ultimately lead to reduced production or harvest. Grafting that can play a good disease prevention, improve the role of yield, is a yield increase of advanced science and technology of vegetable cultivation. The benefits of grafting are: First, to improve the utilization rate of land due to the results of successive planting, especially in greenhouse cultivation of vegetables with the same type of vegetables, the disease gradually accumulated pests increased year by year, so that vegetable yield and quality decline. The introduction and application of grafting technology, due to the strong wild nature of stock, increased resistance, grafted vegetables to enhance the resistance after grafting, growing with the block of land relative to the relative increase in land use efficiency. Second, to prevent the occurrence of disease Cucumber, watermelon Fusarium wilt, eggplant Verticillium wilt, tomato root rot, bacterial wilt, wilt disease is a fatal disease of these four kinds of vegetables, once the disease, is facing a total yield and stubble. Grafting will be very good to prevent the occurrence of disease and continuous planting of plots of land. According to the test, watermelon, cucumber, tomato, eggplant disease-free after grafting, but not grafted