Evaluation of the contribution of pest control to three major grain crops in China in 2023
The National Agricultural Technology Center has organized an evaluation research on the contribution rate of plant protection in the three major crops(wheat,rice,and corn)in 2023.The experiments were conducted in 15 provinces through the plant protection extension system.Based on the evaluation experiment in 2022,two control treatments were set up:strict prevention and control treatment,and unified prevention and control treatment,along with farmer's experience-based protection treatment.Multi-point experiments were conducted systematically and with strict measures to measure yields.In 2023,the contribution rate of plant protection for disease,insect,and weed prevention and control in the three major grain crops in China was 30.59％.Specifically,plant protection contributed 27.58％to wheat production,40.58％to rice,and 25.66％to corn.According to this calculation,a total of 37.671 5 million tons of wheat,83.839 5 million tons of rice,and 74.116 9 million tons of corn yield were saved,resulting in a total yield of 193 million tons for the three major grain crops.Weeds were found to cause the most damage to rice,followed by corn and wheat.
grain cropspest prevention and controlcontribution of plant protection
NETL
NSTL
万方数据
