1983 puts forward a new concept of "three-factor value" representing meteorological population. This represents a new concept of meteorology as a whole, which makes it easier to study the relationship between climate and crop yield and to master meteorology intuitively. This paper was published in Beijing Agricultural Sciences No.65438+1No.0983, entitled "Comprehensive Effects of Rainfall, Sunshine and Temperature on Crop Yield-Preliminary Analysis of the Concept of Three Factors". In the early 1980 s, the technology of controlling ineffective flower of peanut with ethephon was studied. The results showed that after spraying 2000ppm ethephon (calculated as effective components) 20-25 days after the first flowering of peanuts, the flower amount could be reduced by about 75% compared with that without spraying at the same time. There are no obvious side effects. However, there is a certain phenomenon of "greed for youth" after drug use. This paper was published in the first issue of Peanut Science and Technology (1983), entitled "Preliminary report on the experiment of controlling peanut late flowering with ethephon".