论文部分内容阅读
玉米花粒期(即抽雄至成熟),茎叶停止生长,进入以籽粒发育为中心的生殖生长期,此期管理的主要措施是:1.及时浇水。玉米花粒期植株需水量较大,缺水则受精不良,叶片早衰,光合作用和养分运输能力下降,败育粒增加,粒重下降,尤以开花后20天内影响最大。故玉米在花粒期遇旱,应及时浇大水,保持田间持水量在80%左右;乳熟至蜡熟期保
Popcorn period (tasseled to maturity), stems and leaves to stop growing, to enter the seed development as the center of the reproductive growth period, the main management measures during this period are: 1. Timely watering. In the poplar period, the water demand of corn plants is larger, water deficit is poorly fertilized, premature leaf failure, photosynthesis and nutrient transport ability are decreased, aborted grains are increased and grain weight is decreased, especially in 20 days after flowering. Therefore, when the drought in the flowering of corn, water should be poured in time to maintain field capacity of about 80% of water; milk ripe to wax mature