EL-RARE, K. (1999). EFFECT OF DIFFERENT RATES OF (N, P, K) FERTILIZERS ON BEMISIA TABACI (GENN.) INFESTATION ON TOMATO AND ITS EFFECT ON THE YIELD. Egyptian Journal of Agricultural Research, 77(3), 1067-1073. doi: 10.21608/ejar.1999.336972
KHAYRAT K. EL-RARE. "EFFECT OF DIFFERENT RATES OF (N, P, K) FERTILIZERS ON BEMISIA TABACI (GENN.) INFESTATION ON TOMATO AND ITS EFFECT ON THE YIELD". Egyptian Journal of Agricultural Research, 77, 3, 1999, 1067-1073. doi: 10.21608/ejar.1999.336972
EL-RARE, K. (1999). 'EFFECT OF DIFFERENT RATES OF (N, P, K) FERTILIZERS ON BEMISIA TABACI (GENN.) INFESTATION ON TOMATO AND ITS EFFECT ON THE YIELD', Egyptian Journal of Agricultural Research, 77(3), pp. 1067-1073. doi: 10.21608/ejar.1999.336972
EL-RARE, K. EFFECT OF DIFFERENT RATES OF (N, P, K) FERTILIZERS ON BEMISIA TABACI (GENN.) INFESTATION ON TOMATO AND ITS EFFECT ON THE YIELD. Egyptian Journal of Agricultural Research, 1999; 77(3): 1067-1073. doi: 10.21608/ejar.1999.336972
EFFECT OF DIFFERENT RATES OF (N, P, K) FERTILIZERS ON BEMISIA TABACI (GENN.) INFESTATION ON TOMATO AND ITS EFFECT ON THE YIELD
Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
Abstract
The relation between the major plant nutrients, NPK and their combinations on tomato infestation with B.tabaci (Genn.), was studied in Imbaba district, Giza Governorate during 1995-1996. An obvious increase of this pest accompanied by decreasing in tomato yield was observed on the plants treated with high levels of N. (ammonium sulphate, 21% N). On the other hand, the study proved that the moderate level of N (1 50 unit) corresponding with potassium sulfate [Potasium sulfate, 60 units/K20)] and superphosphate (60 unit/P202) - in mixtures-gave low population of B.tabaci and higher level in yield.
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