The climate in Anhui Province is a bit special, and it is located in the overlapping area of ​​the north-south climate transitional zone and the marine land climatic zone. Therefore, the disasters in the area are frequent and have a very significant impact on the yield of summer corn. There are many ecological factors affecting the growth and development of summer maize, among which are climatic factors and human factors. To grasp the climatic factors that affect the fluctuation of corn production, seek advantages and avoid disadvantages, and adopt management measures to ensure the high yield and stable production of summer corn. Small meteorological stations have a very important role in the control of the corn field climate. Scan WeChat to learn more about cutting-edge information:
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The grain filling stage after corn silking, that is, two years from August 17 to September 10, was observed for 50 days, and the first ear position was highest at 8:00, 14:00, and 20:00 in each day. Perform fixed observations of the microclimate in the field. Four processes are performed at the same time. Temperature, humidity and wind speed were measured with a small weather station; the amount of effective light was measured using a photo quantum meter (3415F). During the same year, as the row spacing increased, the daily average temperature in the group gradually decreased. The humidity in the groups with different row spacings also differs, the row spacing increases, and the relative humidity within the group decreases. The changes in humidity and temperature are relatively consistent. The reason may be that the 50 cm line spacing is narrow and the ventilation is poor, resulting in reduced ground transpiration and high temperature and humidity. The wind speed increases as the row spacing increases. The wind regulates the moisture and heat in the corn population and affects the temperature and humidity.
Through the environmental monitoring of small weather stations, changes in plant spacing arrangement have a significant impact on maize yield and microclimate in the field. The row spacing configuration has a significant impact on corn yield, with a row spacing of 50 cm yielding the highest yield, with output of 10551.75 kg in 2011 and 2012, respectively. Hm2, 9453.3kg/hm2. The yield of each treatment was: T50>T60>T70>T80. The results of the two-year test were consistent. Corn originates in the tropics and is a high-temperature, high-efficiency crop. It has certain requirements for humidity, temperature, light, and wind speed. The 50 cm culture method has a small row spacing, and the large daily average temperature, relative humidity and small wind speed are The transpiration is reduced, the small transpiration maintains a certain humidity, avoids water deficits during corn milking and grain filling, and the population density at the 50 cm line spacing reduces the loss of light leakage. The solar radiation absorbed by leaves per unit area Large, further increase the utilization of light energy. Comprehensive comparison shows that the 50 cm row spacing of the planting structure is relatively stable and can fully utilize light for photosynthesis and organic matter production. Therefore, the field microclimate at 50 cm spacing is conducive to the growth and development of Longping 206, and the high-yield potential is better played. 
Small Weather Station Analyzes Yield and Climate Factors of Summer Maize