表1 菌源与纹枯病.doc

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1、表1菌源量与纹枯病菌核量(粒/6.67m2)生育期发病情况拔节期腊熟期病从率/％病株率/%病指病丛率/％病株率/％病指205.17.32.145.021.67.2507.35.61.645.432.113.510016.810.83.759.837.210.420019.4165.362.145.714.8表2密度和施肥与纹枯病的发生密度/cm施肥量N15.5PK5N12PK6.5N8.5PK8N5PK9.5平均19.0×16.78.6310.173.695.066.8923.3×16.74.9712.2819.1111.0911.6930.0×16.79.9711.3512.913.9

2、19.5335.0×20.010.149.728.054.017.98平均8.4310.8810.946.029.07注：N15.5PK5系指亩用纯氮15.5kg和KH2PO45kg。表3旱育秧、抛秧、水育秧水稻纹枯病发生比较表发病程度处理调查日期11/616/620/625/61/75/710/716/721/725/730/7抛 秧A25.022.540.042.575.085.087.590.080.095.090.0B9.014.918.628.938.7545.548.051.4544.851.338.3C2.34.857.010.627.1534.524.1529.2524.

3、9524.8521.7旱育秧A42.562.552.562.587.5100.092.582.597.592.597.5B9.513.624.730.655.3561.6540.852.738.643.931.5C2.56.38.914.739.4532.7520.623.015.420.1512.7水育秧A12.530.015.022.540.047.542.560.055.062.582.5B3.64.34.89.127.935.1522.3522.4522.820.122.35C1.151.11.63.1517.222.8510.49.59.38.78.85