Effect of Chemical and Nanoic Fertilizations N, Ca and B on the Quantitative, Qualitative and Yield Characteristics of Peppers Grown Under Greenhouses Conditions

Abstract

Experiment was carried out at research station, Horticulture & Landscaping Department, College of Agriculture, University of Diyala, Iraq, during spring season 2019. The Objective was to study the effect of chemical and nanoic-fertilization of Nitrogen, Calcium and Boron on the quantitative, qualitative and yield characteristics of the sweet pepper (Capsicam annum L.). Randomized Complete Block Design (RCBD) used where nitrogen was three levels, T1 ( 2 ml / liter of normal nitrogen) and A2 (1 ml / liter of nanoic nitrogen) and A3 (control treatment is sprayed with water only), and the second factor also has three levels of Boron B1 (1 g / liter calcium with normal boron) and B2 (1 ml / liter calcium with nanoic boron ) And B3 (control treatment sprayed with water only) and the plants were sprayed with four times within Each treatment, so the following results obtained: treatment A1 resulted in highest protein percentage (7.02). Treatment A2 resulted in highest rate of fruit weight, plant yield rate, and average yield per house were (70.00, 2.79 and 3347) respectively. Treatment B1 resulted in a significant increase in the ratio of nitrogen and protein compared to control treatment, where reached (1.12 and 7.02), respectively, treatment B2 resulted in a significant increase in the fruit weight ratio and percentage of nitrogen and protein in the fruit reached (68.22, 1.10 and 6.85), respectively.