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| 水稻病虫危害损失和防治效益评估研究初报 | |
| 引用本文： | 徐海莲,曾宜杰,徐善忠,韦赵海,杨美秀,肖筱成,周晓华.水稻病虫危害损失和防治效益评估研究初报[J].植物保护,2010,36(4):148-151. |
| 作者姓名： | 徐海莲 曾宜杰 徐善忠 韦赵海 杨美秀 肖筱成 周晓华 |
| 作者单位： | 1. 江西省吉安市植保植检局,343000 2. 江西省泰和县植保植检站,343700 3. 江西省玉山县植保植检站,334700 |
| 摘 要： | 2005-2008年笔者在早稻、晚稻生长期间进行防治与不防治对比试验。分析试验数据得出:全程不防治平均减产51.26%,常规防治平均增产113.14%,常规防治平均收益4498.58元/hm2,比全程不防治增86.12%,平均投入产出比1:5.18。拟合出单虫或单病在定局时的发生量(或发生率)与其危害损失之间的线性回归模型:稻飞虱每丛虫量(X)与损失率(Y)之间关系式为Y=8.7654+0.0881X;稻纵卷叶螟卷叶率(X)与损失率(Y)之间关系式为Y=1.9341+0.2851X;二化螟发生率(X)与损失率(Y)之间关系式为Y=1.4182+1.0407X;稻瘟病白穗率(X)与损失率(Y)之间关系式为Y=0.3765+0.9004X;纹枯病病株率(X)与损失率(Y)之间关系式为Y=-2.4469+0.2829X,相关分析均达极显著水平。 |
| 关 键 词： | 水稻病虫 防治与不防治对比试验 危害损失 防治效益 评估 |
A preliminary report on the study of losses and control benefit evaluation of rice pests |
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| Xu Hailian,Zeng Yijie,Xu Shanzhong,Wei Zhaohai,Yang Meixiu,Xiao Xiaocheng,Zhou Xiaohua.A preliminary report on the study of losses and control benefit evaluation of rice pests[J].Plant Protection,2010,36(4):148-151. | |
| Authors: | Xu Hailian Zeng Yijie Xu Shanzhong Wei Zhaohai Yang Meixiu Xiao Xiaocheng Zhou Xiaohua |
| Institution: | 1. Plant Protection and Quarantine Bureau of Ji’an City of Jiangxi Province, Ji’an 343000, China;2. Plant Protection and Quarantine Station of Taihe County of Jiangxi Province, Taihe 343700, China;3. Plant Protection and Quarantine Station of Yushan County of Jiangxi Province, Yushan 334700, China |
| Abstract: | Experiments were carried out in a field divided into pest control and the control plots to study losses and control benefit evaluation of rice pests during early rice and late rice seasons in 2005-2008. The results showed that rice production was decreased by 51.26% by pests without control and increased by 113.14% on average by pest control. The income from pest control was 4 498.58 yuan per hm 2 on average, increased by 86.12% compared with the control, and the ratio of input and output from pest control was 1∶5.18. Linear regression models fitting the relationship between percentage of rice production loss (Y) and pest occurrence (X) of various pests were as followed: Y=8.765 4+0.088 1X for the rice planthopper; Y=1.934 1+0.285 1X for the rice leaffolder; Y=1.418 2+1.040 7X for the rice stemborer; Y=0.376 5+0.900 4X for the rice blast; Y=-2.446 9+0.282 9X for the rice sheath blight. All of these models were at the level of statistically significant difference. |
| Keywords: | rice pests experiment of pest control and the control loss caused by pest damage control benefit evaluation |
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