| 几种化控药剂对水稻抗倒及产量结构的影响 |
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| 引用本文： | 周骏辉.几种化控药剂对水稻抗倒及产量结构的影响[J].现代农业科技,2019(20). |
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| 作者姓名： | 周骏辉 |
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| 作者单位： | 江苏省农垦农业发展股份有限公司黄海分公司 |
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| 摘 要： | 为解决水稻倒伏问题，给化控药剂在水稻生产中的合理使用提供理论依据。本试验采用小区对比法，通过对烯效唑等四种化控药剂不同浓度的小区试验，研究化控药剂对水稻抗倒效果及产量结构的影响。试验结果表明，水稻拔节前喷施化控药剂15%多效唑WP和5%烯效唑WP能明显缩短水稻植株第二节间长度。15%多效唑WP会降低水稻结实率，造成减产，5%烯效唑WP对水稻的产量影响较稍小。总体看来，拔节前喷施5%烯效唑WP180g/ hm2对水稻株高控制效果较好且对产量影响小,可在生产实践上推广使用。
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| 关 键 词： | 水稻倒伏 15%多效唑WP 5%烯效唑 株高 产量 |
| 收稿时间： | 2019/7/4 0:00:00 |
| 修稿时间： | 2019/7/4 0:00:00 |
Effects of Several Chemical Control Agents on The Lodging Resistance and Yield Structure of Rice |
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| Abstract: | The study aims to solve rice lodging problem and provide theoretical basis of chemical control agent for rational use in rice production. Four chemical control agents such as S-07 have been carried out with different concentrations in the field plot contrast experiments to study the effects of chemical control agents on the lodging resistance and yield structure of rice. The result showed that the length of second internode of rice could be significantly shortened by spraying 15% Paclobutrazol WP and 5% entrazole WP before the jointing stage. 15% Paclobutrazol WP could reduce the seed setting rate and cause the yield reduction while 5% enimolazole has smaller impact on yield reduction. In general, when spraying dosage is 180g/ hm2 before jointing stage, 5% entrazolium WP showed better control effect on rice plant height and slight impact on yield and can be popularized for filed control.. |
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| Keywords: | rice lodging 15% paclobutrazol WP 5% uniconazole WP plant height yield |
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