This study was carried out during two consecutive seasons 2011 and 2012 in the greenhouse of the Experimental Farm which related to Horticulture Department, Faculty of Agriculture, Moshtohor, Benha University. Two different fruit species transplants were used as plant material for this study.
The two studied fruit species transplants were Thompson seedless grape and papaya "Solo" Cv.. Those transplants were differed in their growth habit, one species (grapes) belong to deciduous fruit species but the other one papaya "Solo Cv." classified as evergreen trees.
"Thompson seedless" grapes was chosen for this investigation because it used as widespread local fruit fresh consumption as well as for exportation as it considered the most favorite deciduous fruit crop all over the world.
While papaya trees characterized by hasting fruiting stage, highly nutritional value besides it is lower price, so more authorized attention has to be devoted to such fruit trees. The present investigation aimed to study:
1- The response of both vegetative growth and nutritional status of both "Thompson seedless" grape and papaya "Solo Cv." transplants to soil mineral fertilization.
2- Determination of eight nutrient elements (N, P, K, Ca, Mg, Fe, Mn and Zn) in leaves (leaf blade, and petiole)] of the two investigated fruit species transplants. Determination of such nutrient elements could be used as an indicator to spot the light on both nutritional and physiological plant status.
The all investigated treatments significantly enhanced the studied parameter as compared to control during both seasons of study. Furthermore, T6 (6.0 g N + 3 g K/transplant) surpassed the other investigated treatments. In this respect, where it achived (42.55%), followed by T10 (9.0 g N + 4.5 g K/transplant) during 2011 and 2012 seasons of study. On the other hand, the reverse was trees with T7 (6.0 g N + 4.5 g K/transplant) where it gave the lowest value (8.52% and 10.57%) in the 1st and 2nd seasons, respectively. |
