农业生产实践证明，在花生生长的中后期，适时进行“四防”，即防徒长、防早衰、防病虫、防烂果，可有效地增加花生的荚果数和千果重，从而达到保收促增产的目的。一、防徒长对水肥条件较好，生长旺盛的花生田尤其是株高达４０～５０ｃｍ的花生田，可在花生盛花后期至终花 Agricultural practice has proved that peanut growth in the late, timely, “four defenses,” that is, anti-Treasury, anti premature senility, pest control, prevent rotten fruit, peanut pods can effectively increase the number and weight of thousands of fruit, so as to achieve Paul The purpose of income increase. First, the anti-disciplinary long on the water and fertilizer conditions are good, strong growth of peanuts Tian  especially strains up to 40 ~ 50cm peanut fields  , peanut flowering in the late to the final flower