Question

answer the following questions
1, essential elements andexamples?
2, how plants get eeantial elements?
3, adventages of growing leguminous plants in fields?
4, what is the need of fertilizers applications?
5, what is the need of testing the soil?
6, what are the organisms that enchames soil fertility? ​

Answer 1

Answer:

1. The essential mineral elements are: Nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, chlorine, iron, manganese, zinc, copper, molybdenum, and nickel.

2.Plants take up essential elements from the soil through their roots and from the air (mainly consisting of nitrogen and oxygen) through their leaves. Nutrient uptake in the soil is ach it'sieved by cation exchange, wherein root hairs pump hydrogen ions (H+) into the soil through proton pumps.

3.Soil quality advantages of legumes include increasing soil natural matter, improving soil porosity, recycling nutrients, improving soil structure, decreasing soil pH, diversifying the microscopic lifestyles in the soil, and breaking disease build-up and weed problems of grass-type crops.

4.Fertilizers replace the nutrients that crops remove from the soil. Without the addition of fertilizers, crop yields and agricultural productivity would be significantly reduced. That's why mineral fertilizers are used to supplement the soil's nutrient stocks with minerals that can be quickly absorbed and used by crops.

5.A soil test is important for several reasons: to optimize crop production, to protect the environment from contamination by runoff and leaching of excess fertilizers, to aid in the diagnosis of plant culture problems, to improve the nutritional balance of the growing media and to save money and conserve energy by ...

6.Diazotrophic bacteria and cyanobacteria like Azotobacter, Bacillus, Beijerinckia, Clostridium, Klebsiella, Nostoc, Anabaena, Anabaenopsis, etc. raise the nitrogen status of soil by fixing atmospheric nitrogen. Moreover, phosphate solubilizing bacteria and fungi increase phosphorus availability to plants in the soil.

Explanation:

hope it's help