The Impact of secondary Macro Nutrients on Crop Production

Abstract

Soil is one of the factors of plant growth. Terrestrial plants have the following demands on soil: water, air, nutrients, and protection from toxins. Plants need adequate air, water, and nutrients in their root zone for optimum growth and yield (Foth HD,1990).Crop production and productivity can be improved by the combination of genotype, optimum environmental condition and appropriate management practices which can be generalized by the formula: Yield = G (genotype) x E (environment) x M (management). The genotype refers to healthy seeds of high yielding verities; environment refers to the soil‘s physical and chemical properties and climate in the particular location; and management refers to the farmers' ability and skill in managing crops and the farming system (Yihenew G.Selassie, 2015).