Application of Nitrogen Fertilizer on Plant Density, Growth, Yield and Fruit of Bell Peppers (<i>Capsicum annuum</i> L.)

Abstract

The present research was carried out to evaluate response of Bell peppers (Capsicum annuum L.) to plant density and nitrogen fertilizer under field conditions. Plant density at four levels (20×50 cm, 30×50 cm, 20×100 cm and 30×100 cm) and nitrogen treatments at four levels (0, 50, 100 and 150 kg·N·ha -1 ) were applied. Plant height, lateral stem number, leaf chlorophyll content, yield, and were assessed at immature and mature stages. The results showed that vegetative growth characteristics (plant height, lateral stem number and leaf dry matter) and reproductive factors (fruit volume and fruit weight) decreased with increasing plant density, but total yield (kg·ha -1 ) increased with increasing plant density. The highest and lowest total yields were obtained by plant density 20×50 cm and 30×100 cm respectively. Nitrogen fertilizer was significantly affected on plant height, lateral stem number and leaf chlorophyll content. It was observed that fertilization with 150 kg·N·ha -1 resulted to the highest fruit volume and plant yield. There were significant differences between fruit volume and fruit weight by interaction between plant density and nitrogen treatments.

Growth, Carbon Assimilation and Biochemical Changes of Polygonum minus Huds as Affected by Nitrogen Fertilization

“…This formation of chloroplast contributes to the raised of lipid contents in leaves and chloroplast content such as chlorophyll a and carotene [44]. The similar finding was obtained by Bhuvaneswari et al [43] who announced that N application on plants can subsidize to the strength of the chloroplast as N is the major constituent in of all amino acids in proteins and lipids. In summary, it can be concluded that the n of N fertilization rates will boost up the Polygonum minus.…”

“…Therefore, it can be concluded that plant height will be improved by the increment of N application. Ordinarily, a surplus of N supply will lead to the extreme succulent growth and weakness to the pest [43] since N can contribute to the soil fertility which will contribute for the plants to increase in height [42]. Nonetheless, the untreated plant (0 kg/ha) was mostly having the shortest plant height since it needs to depend on the native soil fertility [39].…”

Effect of fertigation with potassium and nitrogen on gas exchange and biomass accumulation in eggplant1

“…These values represent an increment of 28.1 % and 190.8 %, respectively, in comparison to the control with no fertilization. N is one of the essential macronutrients required for growth (Bhuvaneswari et al 2014). K, on the other hand, is not used in organic molecules and, therefore, has no structural function (Faquin & Andrade 2004).…”

“…Adequate crop fertilization is one of the most important factors for improving yield (Bhuvaneswari et al 2014). Nitrogen (N) is an element highly demanded by vegetables and presents a low availability, mainly in tropical soils (Pimentel 1998).…”

“…N is important for the biosynthesis of amino acids which form proteins. In addition, it is necessary for the synthesis of chlorophyll and photosynthesis (Lopes 1998, Bhuvaneswari et al 2014.…”