Effect of Foliar Application of some Organic Acids and Microelements on Pea (Pisum sativum L.) Yield and Seed Quality and Different Fertilizer Levels under Salt-Affected Soil Conditions

Abstract

A field experiment was carried out during two successive winter seasons 2017/2018 and 2018/2019 on pea plants Master-B cv. at Sakha Horticultural Research Station Farm, Agricultural research center, Kafr El-Sheikh governorate, Egypt to study the effect of )organic acids i.e., fulvic 3 g/l, humic 1 g/l, salicylic 0.25 g/l) and microelements 1 g/l as foliar applications compared with the control (spray with tap water), under five levels of NPK i.e., 0.00, 25, 50, 75 and 100% from the recommendation doses as soil application on some growth, yield and quality of peas under salt-affected soil condition to minimize the using of mineral fertilizers and reduce the production cost, hazards of soil and human health. Twenty-five treatments were arranged in a split plot system in randomized complete block design (RCBD) with three replicates. Results showed significant differences amongst different growth attributes, yield and pods quality due to NPK fertilization and foliar application of (fulvic; humic; salicylic) acids and microelements. The highest plant height, leaves plant-1 and branches plant-1 as well as pea yield were resulted by the application of 100 % followed by 75 % of NPK compared with the other NPK rates. Likewise, foliar applications with (humic or salicylic) acids or microelements significantly increased growth, yield and quality of peas in both seasons. Accordingly, this study recommended that the superiority of NPK fertilization at 75% from recommended doses and foliar spray with microelements or salicylic acid, which resulted the best growth, yield, pods quality of pea plants under salt affected soil.