Ismail, E., Abd El-Hady, A. (2018). Influence of Different Soil Applied Levels of (NPK) and Compost on Growth, Yield, Fruit Quality and Leaf Nutrient Content, of "Anna" Apple Cultivar Trees. Journal of Plant Production, 9(5), 485-493. doi: 10.21608/jpp.2018.35819
E. A. Ismail; A. M. A. Abd El-Hady. "Influence of Different Soil Applied Levels of (NPK) and Compost on Growth, Yield, Fruit Quality and Leaf Nutrient Content, of "Anna" Apple Cultivar Trees". Journal of Plant Production, 9, 5, 2018, 485-493. doi: 10.21608/jpp.2018.35819
Ismail, E., Abd El-Hady, A. (2018). 'Influence of Different Soil Applied Levels of (NPK) and Compost on Growth, Yield, Fruit Quality and Leaf Nutrient Content, of "Anna" Apple Cultivar Trees', Journal of Plant Production, 9(5), pp. 485-493. doi: 10.21608/jpp.2018.35819
Ismail, E., Abd El-Hady, A. Influence of Different Soil Applied Levels of (NPK) and Compost on Growth, Yield, Fruit Quality and Leaf Nutrient Content, of "Anna" Apple Cultivar Trees. Journal of Plant Production, 2018; 9(5): 485-493. doi: 10.21608/jpp.2018.35819
Influence of Different Soil Applied Levels of (NPK) and Compost on Growth, Yield, Fruit Quality and Leaf Nutrient Content, of "Anna" Apple Cultivar Trees
2Soil, Water and Environment. Research Institute Agric. Res. Center, Giza, Egypt
Abstract
The current study was undertaken to evaluate the effects of various soil applied rates of (NPK) and compost compound either alone or in combination on some vegetative growth measurements, fruiting aspects, fruit quality and leaf nutritional status of "Anna" apple cultivar trees budded on MM106 rootstock grown at El-Kanater Experimental farm belonging to Horticultural Research Station during the two successive seasons of 2011 and 2012. Data obtained clearly indicated that, most of the (NPK) and (compost) levels either alone or in combination treatments exhibited a positive effect and a significant increment in all studied vegetative growth parameters i.e., shoot length, number of leaves per shoot and leaf surface area. Moreover, fruiting parameters (yield as kg/tree and ton per fed.) were statistically increased with increasing the levels of the most studied treatments in the two seasons of experimental study. Also, data revealed obviously that, fruit characteristics including both fruit physical properties i.e., (fruit weight, volume, firmness, length and diameter) and fruit chemical characteristics such as TSS %, total acidity % and TSS/acid ratio were significantly improved when treated trees with various treatments especially with the highest soil applied levels of NPK or/and compost when compared to the lowest level. Furthermore, leaf nutritional status of some studied nutrients i.e., nitrogen, phosphorus and potassium were generally improved and increased as a result of the different investigated treatments under this investigation from the standpoint of statistic during both seasons of study. Generally, it could be concluded that, most of (NPK) and (compost) soil applied treatments either alone or in combination resulted in a positive and a significant effect on all investigated vegetative growth, fruiting aspects and both fruit quality (properties) and leaf nutrient content of "Anna" apple trees in most cases. Furthermore, the highest level of combination treatment of (N4P4K4 + compost at 2000 ml3) was the most effective treatment for increasing growth, yield, leaf nutrient contents and improving the most fruit properties.
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