Response of tomato plant to foliar application of calcium and potassium nitrate integrated with different phosphorus rates under sandy soil conditions.
Year: 2018
Type: article
Abstract: Tomato is strategic export vegetable crop in Egypt and the world. So, two field experiments were conducted to study the effect of three phosphors rates (0, 14 and 28 kg P fed-1); five foliar treatments (0, 0.3 and 0.6% of Ca and 0.5% and 1% of K) and their interactions on tomato growth and yield. The used experimental design was a split block design with three replicates. Plant height, leaf area, fresh and dry weight (g) of leaves, fruit yield (Mg fed-1), fruit diameter, N, P, K and Ca content (%) in leaves and uptake in fruits and lycopene content (mg kg-1) were determined. The obtained data reveals that all the used treatments significantly affected the previous parameters. Data also show that phosphorus treatment of 14 kg P fed-1 gave the bsults of leaf area (cm2), fresh weight of tomatoes leaves, potassium content (%) in leaves, fresh weight of four fruit, fruit diameter and tomatoes yield (Mg fed-1). In addition, foliar application treatments at 0.3 Ca and 0.5% K recorded the highest results of plant height, leaf area (cm2), fresh weight of tomato leaves, N, P contents in leaves, weight of four fruits, fruit diameter, tomato yields (Mg fed-1), Fruit lycopene content (mg kg-1), N and P uptake by fruits . The highest tomato yields (Mg fed-1) values were 18 and 18.06 Mg fed-1 recorded with 14 kg P fed-1and 0.3% calcium as a foliar application followed by 14 kg P fed-1 and 0.5 % potassium which recorded 17.36 and 17.32 Mg fed-1 respectively in both seasons. Generally, it concluded that the interaction between the treatment of 14 P fed-1 and 0.3% calcium or 0.5 % potassium as a foliar application enhanced tomato yield and nutrient uptake.
Source: Egyptian Journal of Soil Science
Authors: ahmed abdelhameed, mahmoud Abd El-Hady
Institution: Damietta University
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W2794092199