Role of mineral nutrition on controlling Meloidogyne incognita infecting okra plant under greenhouse conditions [electronic resource].

Includes reference.

The impact of three mineral fertilizers and magnetic iron at three levels (5, 10, 15 g/plant) on Meloidogyne incognita infecting okra plant in comparsion with furadan were studied under greenhouse conditions (29 ± 3°c). Results indicated that all tested materials significantly ameliorated okra plant growth criteria and reduced tested nematode parameters as well. Zinc sulphate, magnesium sulphate and magnetic iron at the level of 15 g/ plant achieved better results than did other levels with values of 20.1, 44.3 and 46.6%; 21.8, 50.9 and 32.6%; and 39.0, 34.2 and 32.1% for plant length , total plant fresh weight and shoot dry weight, respectively, followed by that of 1Og/ plant, and then the level of 5 g/ plant - except that of ferrous sulphate. A positive correlation between reduction percentage of nematode population in soil and increasing tested materials levels was evident. The level of 15g/ plant ranked first in diminishing number of nematode in soil with values of 83.9, 80.6, 82.9 and 79.4% respectively for zinc sulphate, magnesium sulphate, ferrous sulphate and magnetic iron, respectively.

Summary in Arabic.

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