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Soil conditions determine plant nutrient uptake

浏览次数: 日期:2016-06-18

  Plant nutrients is an essential element for plant growth, according to the Absorption of plant and plant absorption of these substances, these compounds as well as the production of standard elements, and only after the nutrition standards to meet the nutritional needs, fresh plants contain a lot of

  Water control at 95%.

  Effective supply of agricultural soil nitrogen, phosphorus and potassium is less, but greater demand for crops; after harvest, the return of a small number of soil in the form of straw and stubble. Thus, soils often lack these three nutrients must be a lot of fertilizer to meet crop them

  demand.

  Differences in the content of plant nutrients in plants are great, but they are in the process of plant growth and development role is equally important; its special physiological role of essential nutrients in plants have their own, this is not a substitute for other elements of . Nitrogen and phosphorus are plant

  Objects within important structural material; increase crop yields and quality of potassium does not constitute any structure of matter, but it is an activator of many enzymes, involved in many metabolic processes in plants; as osmolyte participation on water metabolism.

  Determination of essential plant nutrients three criteria:

  One of the elements on the growth of all plants is indispensable, the lack of such elements will not be complete plant life cycle;

  After the second is the lack of the elements of plant exhibits unique symptoms only after the supplementary elements, such symptoms to disappear.

  Third, the element must be directly involved in metabolism or substance composed of plants, plants play a direct role, rather than the indirect effect of plant growth to improve the environment.

所属类别: Nutrition Concept

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