Influence of potassium foliar application on growth and chemical constituents of Jatropha curcas seedlings grown under water regime

The Influence of Foliar Application of Biostimulant Atonik and Different Sources of Potassium on Full Sun and Partial Shade Salvia farinacea Plants

“…Foliar application of potassium humate for plants grown under full sun conditions gave the highest fresh and dried yields of leaves and stems in both seasons. The positive effect of atonik and different sources of potassium on biomass yield was reported by Przybysz et al (2010), Habib and Zaghloul (2012), Ibrahim et al (2015) and Hashish et al (2015). The obtained results in Table 4 cleared that biomass yield for plants grown under full sun conditions was higher than of those grown under partial shading conditions.…”

“…The highest values of plant height and leaf area were obtained by spraying plants with potassium sulphate + atonik under partial shade environment, while the same treatment gave the highest value of stem diameter under open field condition. The positive effect of atonik and different sources of potassium on plant growth criteria such as plant height, stem diameter and leaf area was reported by Przybysz et al (2010), Taha et al (2014), Muhammad Shah et al (2014) and Hashish et al (2015). With all fertilization treatments, plants grown under partial shade conditions were superior for plant height and individual leaf area, while those grown under open field conditions were superior for stem diameter.…”

“…The obtained results in Table ( both seasons. Increasing total carbohydrates, N, P and K contents in plants fertilized with potassium was reported by Habib and Zaghloul (2012), Taha et al (2014) and Hashish et al (2015).…”

“…Data presented in Table 6 Przybysz et al (2010), Habib and Zaghloul (2012), Hashish et al (2015) and Ibrahim et al (2015). The obtained results in Table ( both seasons.…”

“…Gulser et al (2010) found that Application of humic acid and calcium nitrate significantly affected seedling pepper growth by increasing fresh and dry leaf weight, fresh and dry root weight, stem diameter, root length and shoot length. Hashish et al (2015) evaluated the effect of foliar spray with potassium humate (0.0, 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0% K-humate) on growth and some chemical constituents of Jatropha curcas L. plants. Most criteria of vegetative growth expressed plant height, stem diameter, leaves number/plant, leaf area, root length, fresh and dry weight of leaves, stems and roots as well as chemical composition ,chlorophyll a, b and carotenoids and total carbohydrates %, increased by increasing K-humate concentrations compared with control plants.…”