| abstract |
The invention relates to a method for improving crop yield and/or quality. Within the growth period of crops, applicable diluted mixture consisting of pesticide preparations with dosage being 50-100 percent of conventional dosage and synergistic additives is applied for at least one time. The ratio of the pesticide preparations to the synergistic additives is 1-200g or ml to 1.5-300g or ml. The synergistic additives are diluted to 150-30,000 times in the applicable diluted mixture. The synergistic additives consist of Tween surfactant and N-R-2-pyrrolidinone, wherein the substituent group R of the N-R-2-pyrrolidinone is H or C1-C12 alkyl. According to a great number of tests, the method provided by the invention has the advantages that the yield of crops can be greatly improved, the yield of rice, wheat, strawberries, oranges, fresh tea leaves and pears can be respectively improved by 1.2-17.5 percent, 1.5-20.5 percent, 51 percent, 48 percent, 52 percent and 54.5 percent, the quality of the agricultural products is improved, the pesticide residue can be reduced and the environmental quality is improved. |