生产实践证明,在花生生长的中后期,适时进行“三防”即防徒长、防早衰、防病虫,可增产20％～30％。1 防徒长 对水肥条件较好,植株生长旺盛的花生田,可在花生大批果针入土时,喷施植物生长调节剂。每亩喷施15％多效唑粉剂30～40克对水40～50千克,或20％的壮丰安每亩30毫升对水40千克。宜在下午喷施,避免重喷、漏喷,喷后8小时之内遇 Production practice has proved that peanut growth in the late, timely “three defenses” that anti-Treasury, anti-premature aging, pest control, increase 20% to 30%. 1 anti-disciplinary water and fertilizer conditions better, strong growth of plant peanut fields, peanuts can be a large number of needle into the soil, the spraying of plant growth regulators. Spray 15 per acre powder maple powder 30 to 40 grams of water 40 to 50 kg, or 20% Zhuang Feng An 30 ml per acre of water 40 kg. Should be sprayed in the afternoon to avoid re-spray, spray leakage, spray within 8 hours of encounter