Effect of Iron and Selenium on Growth, Yield and Quality of Eggplant under Different Mineral Fertilization Levels | ||
| Journal of Soil Sciences and Agricultural Engineering | ||
| Article 11, Volume 9, Issue 10, October 2018, Pages 525-532 PDF (319.56 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jssae.2018.36456 | ||
| Author | ||
| Dina Ghazi | ||
| Soils Department, Faulty of Agriculture, Mansoura University, Mansoura, Egypt. | ||
| Abstract | ||
| Eggplant is one of the most important vegetable crops with high nutritional value. So, field experiment was performed to study the effect of foliar application with iron in the form of Fe-EDTA at rate of 300 mg L-1 (923.04 g fed-1) and selenium as Na2SeO3 (sodium selenite) at rate of 5 mg L-1 (4.38 g fed-1) on plant growth, yield, quality and chemical composition of eggplant (Solanum melongena, L.) under three levels of nitrogen, phosphorus and potassium fertilization (NPK50%, NPK75% and NPK100% from recommended doses). Field experiment was conducted at Experimental Farm of the Faculty of Agriculture, El-Mansoura University, Dakahlia Governorate, Egypt, in the season of 2016. The used experimental design was a split plot design with three replicates. As for, the treatment NPK fertilizers at rate of 75% from recommended dose with spraying plants by mixture of (Fe + Se) showed the highest significant values of the studied parameters (plant height, number of leaves plant-1, leaves fresh and dry weight and total chlorophyll content), yield (fruits length, fruit diameter and yield, except number of fruits plant-1 was not significant) at any level of mineral fertilization as well as (N, P and K contents (%) and N, K uptake (g plant-1) in eggplant leaves, except P uptake which was non-significant comparing with the untreated plants and fruit quality (crude protein, total carbohydrates, dietary fiber and vitamin C except NO3- which gave the opposite trend). The maximum values of NO3- concentration in eggplant leaves were obtained by Fe foliar application with NPK-fertilization at rate of 100% RD. On the other hand, the treatment NPK100% x (Fe + Se) as mixture significantly increased the Fe and Se contents in the leaves of eggplant. Accordingly, the application of NPK at rate 75% RD with foliar application of iron and selenium in combination together at rate of 300 mg L-1 and 5 mg L-1, respectively gave the highest significant values of all tested characters of eggplant (growth, yield and its quality) under study condition. | ||
| Keywords | ||
| Eggplant growth; yield and quality; NPK fertilizer; iron; selenium; Chemical composition; Recommended dose (RD) | ||
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