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Briefly discuss/ explain the influence of soil pH and Cation Exchange Capacity (CEC) on nutrient retention and nutrient availability.
Step by step
Solved in 3 steps
- Explain why soil water potential is a better measure of water availability for plants than volumetric or gravimetric water content.Soil pH influence the availability of soil nutrient elements TRUE OR FALSEFertile soil is one of the keys to good yield. (i) Explain the roles of clay and organic matter in contributing to soil fertility and cation exchange capacity (CEC). (ii) Name ONE (1) negative effect of low CEC and high CEC soils respectively. Suggest ways to improve low CEC and high CEC soils. (iii) Suggest ONE (1) suitable type of crops for high CEC soil, low CEC soil and loam soil respectively.
- Draw the NPK economy by showing how these nutrients are being added and lost in the soil system (Just a simple illustration-Boxes and Arrows with labels/descriptions - is enough to illustrate the soil nutrient economy) Each of the soil nutrient, N-P-K, should have a separate hand-drawings. Thus, there will be three (3) drawings.List any five specific processes of soil formationWhat are the main elements that determine soil capacity to produce higher yields? If a plant shows stunted growth as well as yellow leaves then what type of nutrients would be deficient? How to address the issue? Please please answer that
- Soil pH affects availability of nutrients for root absorption. The following statements are true except* a. Low pH results in an increase in Aluminum toxicity. b. Low pH results to unavailability of major nutrient elements. c. Toxic metals are more available in acidic soil. d. Low pH results in slow activity of soil-inhabiting microorganisms.What are the four components of the total water potential in a soil and what sign does each component have? What components of the total water potential most influence water flow in soil under unsaturated and saturated conditions?Soil formation is influenced by which factors? How availability of nutrients can affect the quality of soil?