The relative nutrient status of a plant may be easily described using the following terms:Image result for soil
Deficiency range
Nutrient deficiencies occur in plants when an essential element is not taken up by the plant in sufficient amounts. As a result, yield will be limited by the element which is deficient. While slight to moderate deficiencies do not always result in visual deficiency symptoms, distinct visual symptoms appear in severe cases.
Critical range
Below the critical range of nutrients, an addition of the essential element will trigger an increase in yield. Above the critical range, the levels of essential nutrients are considered sufficient.
Sufficiency range
Within this range, additions of the essential nutrient will not result in any increase in yield. However, uptake of the nutrient may continue. Thus, the concentration of that essential nutrient in plant tissue will also increase. We refer to the uptake of an essential nutrient within the sufficiency range as luxury consumption.
Toxicity rangeToxicities occur when an essential (or nonessential) element is taken up in great enough quantities to actually reduce plant growth. As a result, toxicities can severely limit yield.

Related Posts:

  • Management of soil acidity Land managers can manage soil acidity by raising the pH to a desired value through several methods: Flooding: In lowlands systems, flooding may be an effective technique in raising the pH of the soil. However, this effec… Read More
  • Irrigation & Soil and Water Conservation Engineering a. Surveying is a process which determines positions of points on the surface of earth, in horizontal distance. Objective: to prepare a plan or map Uses: (1) To prepare road (2) To make irrigation channel (3) To make… Read More
  • Volcanic ash soils (Andisol) Typical Characteristics: Parent Material: Volcanic soils, also known as Andisols, are formed from volcanic ash and cinder deposits. While most of the world’s volcanic soils are not highly weathered, there are notable excep… Read More
  • Aluminum toxicity of soil ALUMINUM TOXICITY Aluminum toxicity can occur in soils that have large amounts of aluminum containing minerals. In such soils, aluminum can dissolve into the soil solution as the soil pH drops below 5.4. In contrast, alumi… Read More
  • Movement of nutrient from soil to root Movement of nutrient from soil to root There are three basic methods in which nutrients make contact with the root surface for plant uptake. They are root interception, mass flow, and diffusion. Root interception: Root in… Read More

0 Comments:

Powered by Blogger.

Visitors

218685
Print Friendly Version of this pagePrint Get a PDF version of this webpagePDF


 download University Notes apps for android

Popular Posts

Flag Counter