How does land become fertile?

Fertilizers can be added to soil to increase fertility. Fertilizers contain nutrients such as phosphorous, nitrogen, and potassium. Composted plant matter, called humus, is a natural fertilizer that can improve soil fertility. Erosion allows the soil to either blow away by wind or drain away by water.

What are the steps to restore the fertility of land?

Soil fertility can be further improved by incorporating cover crops that add organic matter to the soil, which leads to improved soil structure and promotes a healthy, fertile soil; by using green manure or growing legumes to fix nitrogen from the air through the process of biological nitrogen fixation; by micro-dose …

What is the name of fertile land in the desert?

Answer: The fertile land in desert where water and vegetation is found is called an Oasis.

Where is arid?

Environments subject to arid climates tend to lack vegetation and are called xeric or desertic. Most “arid” climates straddle the Equator; these places include parts of Africa, Asia, South America, North America, and Australia.

How do you make arable land?

Making unarable land arable often involves digging new irrigation canals and new wells, aquaducts, desalination plants, planting trees for shade in the desert, hydroponics, fertilizer, nitrogen fertilizer, pesticides, reverse osmosis water processors, PET film insulation or other insulation against heat and cold.

Why is land of Valley fertile?

A river valley is fertile because when the river floods, it deposits sediment and organic material on the normally dry land.

What are the methods of determining soil fertility?

The basic method for measuring soil fertility consists of mixing a soil sample with water and chemically extracting the N, P, and K as nitrate, phosphate, and potassium. The N, P, and K amounts in the sample are determined by comparing the solution to a color chart.

How is humus formed?

Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up. The thick brown or black substance that remains after most of the organic litter has decomposed is called humus.

What is arable land short answer?

Answer Expert Verified Arable land in geography is defined as a land that is capable of being ploughed and is used to grow crops usually under the scheme or system of crop rotation. It has been derived from the from Latin word arare. It can also said that 52.59 \% of the total land in India is arable.

What are arid processes?

Erosional processes in arid and semi-arid regions include: mass wasting (surface creep, landslides, mud and debris flows, and rock topples and falls), water-driven or fluvial processes, and. wind-driven or aeolian processes (dust, loess, sand dunes).