旺长麦田不同控旺措施的增产效应郑现敏李传珠刘文海李春苗（郸城县农林科学研究所，郸城４７７１５０）近年来，由于冬季降雨偏少，气温偏高，常导致早中茬小麦冬前旺长，遇早春低温便出现严重的冻害，不同程度地影响小麦的正常生长，降低产量及品质，已成为当前小麦生产... In recent years, due to the winter rainfall is too small, the high temperature, often lead to early wheat before winter stubble Wangwang Long, early spring low temperature will appear serious frost damage, to varying degrees, affect the normal growth of wheat, reduce yield and quality, has become the current wheat production ...