Evaluation of the Contribution Rate of Plant Protection on Control of Rice Crop Pestsin 2022
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摘要: 水稻是我国主要粮食作物,科学有效防控水稻病虫害是保产增收、减损增效的关键措施.为客观反映病虫害防控的成效和贡献率,全国农业技术推广服务中心组织黑龙江、江苏、江西、湖南、广西、四川6省(区)植保体系认真开展了水稻重大病虫害防控植保贡献率评价工作.通过统一设置严格科学防治区、统防统治区、农户自防区和完全不防治对照区,采用多点试验测产的方法,经科学评估,2022年全国水稻病虫害(不包括草害和鼠害)防控植保贡献率为19.46%.据此测算,共挽回水稻产量损失4 141.90万t.统计结果表明,严格科学防治和统防统治情况下,防控植保贡献率分别比农户自防高8.97%和4.35%.Abstract: Rice is one of the major grain crops in China. It is the key measure for prevention and controlling rice diseases and pests to ensure the rice yield and increase farmers' income, reduce the yield losses and increase production efficiency. National Agricultural Technology Extension and Service Center (NATESC) organized the evaluation of the contribution rate of plant protection for rice crop in six provinces (autonomous region), including Heilongjiang, Jiangsu, Jiangxi, Hunan, Guangxi and Sichuan. The contribution rate of plant protection for controlling the insect pests and diseases of the rice crop was 19.46% assessed by the method of multi-point test with four treatments, strict prevention and control area, unified control area, farmers' self-prevention area, and non-control area in 2022. According to the assessment, plant protection retrieved a loss of 4,141.90 million tons of rice. The results of statistical analysis show that the rates of strict prevention and control area treatment, unified control area treatment were 8.97% and 4.35% higher than that of farmers' self-prevention area treatment, respectively.
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Key words:
- rice crop /
- plant protection contribution rate /
- evaluation .
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