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      2. 不同化肥農藥減施組合對水稻主要病蟲害發生及產量的影響
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        作者單位:

        1.湖北省農業科學院植保土肥研究所;2.湖北省襄陽市南漳縣農業局;3.湖北省襄陽市南漳縣農業農村局

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        基金項目:

        國家重點研發計劃;湖北省技術創新專項重大項目


        Effects of different reduction combinations of fertilizer and pesticide on occurrence and yield of main pests and diseases in rice
        Author:
        Affiliation:

        1.The bureau of Agriculture of Nanzhang city, Hubei province;2.Insect Pests and Weeds Control, Institute for plant protection & soil fertilizer, Hubei academy of agricultural sciences;3.The bureau of Agriculture of Nanzhang city, Hubei province;4.Institute for plant protection &5.soil fertilizer, Hubei academy of agricultural sciences

        Fund Project:

        The National Key Research and Development Program of China;13/5000 Hubei province technology innovation special major project

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          摘要:

          為探索化肥農藥減施融合使用技術,設計肥料和農藥兩因素三水平試驗,比較研究不同化肥農藥減施組合對水稻主要病蟲害發生及產量的影響。結果表明:減肥有減輕病蟲發生程度的趨勢,減藥有加重病蟲發生程度的趨勢;減肥可顯著影響水稻紋枯病、第四代稻飛虱、稻縱卷葉螟發生程度,減藥可顯著影響水稻紋枯病、第三和四代稻飛虱、稻縱卷葉螟發生程度,但兩者均對稻瘟病、稻曲病、二化螟發生程度無顯著影響。減肥30%時實測減產10.29%,對產量影響顯著;減肥低于20%時,綠色助劑替代處理和生物農藥替代處理實測產量比對照處理增產0.38%和2.49%,生物農藥替代和綠色助劑替代均可作為化學農藥減量的技術措施。

          Abstract:

          In order to explore the application technology of fertilizer and pesticide reduction, a two-factor and three-level experiment was designed to compare the effects of different fertilizer and pesticide reduction combinations on the occurrence and yield of major diseases and pests in rice. The results revealed that the reduction of fertilizer tended to reduce the incidence of disease and insects, whereas the reduction of pesticides gave rise to a tendency to increase the incidence of disease and insects. The occurrence of rice sheath blight, fourth generation rice planthopper, and rice leaf borer could be significantly affected by the reduction of fertilizer. By contrast, the occurrence of rice sheath blight, third - and fourth-generation rice planthopper, and rice leaf borer were significantly affected by the pesticide reduction. However, They both had no significant effect on the occurrence of rice blast, rice false smut, and rice borer. When the fertilizer reduction is approximately 30%, there is a significant effect on yield, leading to the harvest yield reduction of 10.29%. When the reduction of fertilizer is less than 20%, compared with the control treatment, the harvest yield of green additive alternative treatment and biological pesticide alternative treatment increased 0.38% and 2.49%, respectively. Biological pesticide and green additive alternative treatment can be used as technical measures for reducing the number of chemical pesticides.

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        • 收稿日期:2020-06-08
        • 最后修改日期:2020-06-20
        • 錄用日期:2020-09-16
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