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垵田玉米是密云县山区传统的旱作栽培方式,具有改良土壤、抗旱保墒、施肥集中、密度合理的优点,增产效果明显.垵田玉米植株性状一个突出的特点是进入雨季后,中、上部叶片宽大,叶色浓绿,穗部性状良好.据1984年观察,与平播相比,垵田玉米中、上部叶片叶绿素含量提高,叶肉细胞环数有增加的趋势.为了进一步细致调查,探索垵田玉米增产的生理机制,1985年在新城
Maotian corn is a traditional dry cultivation method in mountain area of Miyun County, which has the advantages of improved soil, drought-resistant soil moisture, fertilization concentration and reasonable density, and obvious stimulation effect. One prominent feature of Matian maize plant trait is that after entering the rainy season, Leaf width dark green leaf panicle traits.According to the 1984 observation, compared with the sowing, the corn leaf chlorophyll content increased, the mesophyll cell ring number tends to increase.In order to further investigate carefully to explore垵 Tian maize physiological mechanism of increase in 1985 in Metro