yield regulation
2.Regulation of Mixture of DPC and DTA-6 on Insect-resistant Transgenic Cotton Yield,Quality and its Seed Characteristics
3.The Merger Control Regulation of EC is an achievement that member states yield to parts of sovereignty in order to defense monopoly and economic concentration in European Common Market.
4.By studying to fertilize in deep and omnibearing lamination to soybean during l993~1994, the results showed that applying fertilizer in the lamination under ridges according to the regulation of fertilizer needed and the root distribution of soybean should be advantageous to the growth and development of root and plant, increase dry matter accumulation, adjust the factors determining soybean yield and increase yield significantly.
5.Taking the wheat production in Henan Province as an example,the occurrence regulation,quantitative impact degree and risk probability of three main agrometeorological disasters,that is the drought& flood in seeding period,late freezing disaster,dry-hot-wind & immature death of wheat,which influenced severely the wheat yield,were analyzed by constructing risk degree functions and using EOF & probability analysis according to the risk analysis theory of agrometeorological disasters.
