Effects of excessive macronutrients on growth and development of Phaseolus Vulgaris
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I predict that excessive Nitrogen(N) added to soil will result in the burning of the leaves and moderate color loss in the bean plant. Excessive Phosphorus(P) added to soil will result in death of the bean plant within a month. Excessive Potassium(K) added to the soil will result in yellowing of leaves and slowly lead to death of the bean plant. Excessive Iron(Fe) added to soil will result in death of bean plant within weeks.
Introduction
A experiment was conducted at CSULA greenhouse. To investigate the influence of 16 times the recommended macronutrient amount added to the bean plants in a one month period. The macronutrient Nitrogen, Phosphorus, Potassium are the most common components of plant fertilizers. These macronutrients are the chemical building blocks of plant structure. The addition of macronutrients will generally enhance plant growth. But excess amount will also cause plasmolysis of root cells and damage to or death of the plant (Gomez & Agui 1983)...