which important component of fertile soil is missing from the following
Answers
Answer:
phosphorus,nitrogen,pottasium
USE OF MICROORGANISMS IN INCREASING SOIL FERTILITY - DEFINITION
Some bacteria are able to fix the atmospheric nitrogen to enrich soil and increase its fertility.
Such organisms are known as biological nitrogen fixers.
SOIL FERTILITY - DEFINITION
Soil fertility refers to the ability of a soil to sustain plant growth, i.e., to provide plant habitat and result in lasting constant yields of high quality.
A fertile soil has the following properties: It is rich in nutrients necessary for basic plant nutrition, including nitrogen, phosphorus and potassium.
SOIL FERTILITY - SHORTCUT
Soil fertility refers to the strength of the soil to support plant life. The right mix of minerals and organic matter make the soil fertile. Soil fertility can be improved by adding fertilisers to the soil to make up for the missing nutrients.
ECONOMICAL AND ECOLOGICAL IMPORTANCE OF LICHENS - DEFINITION
Economical and ecological importance of lichens are as follows:
Early colonisers
Food
Dyes
Perfumes
Medicines
Air pollution
Fires
Damaging buildings
MYCORRHIZAE - DEFINITION
A symbiotic relationship between hyphae and roots of higher plants is known as mycorrhiza.
Mycorrhizae may be ectotrophic, when the fungal hyphae live on the surface or endotrophic, when fungal hyphae penetrate the root and grow inside the root tissues.
Mycorrhizae play an important role in afforestation.