FERTILITY OF SOIL PDF DOWNLOAD

Soil fertility—the capacity of soil to supply essential nutrients to crops—has long been a major concern of agriculturalists. Nitrogen is one of the most important. Fertile soil is a goal of every farmer, gardener and orchardist, but achieving fertile soil and maintaining fertile soil takes some understanding of. SOIL FERTILITY. Crops need nutrients just like people do. A fertile soil will contain all the major nutrients for basic plant nutrition (e.g., nitrogen, phosphorus, and potassium), as well as other nutrients needed in smaller quantities (e.g., calcium, magnesium, sulfur, iron, zinc, copper, boron, molybdenum, nickel).


FERTILITY OF SOIL PDF DOWNLOAD

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FERTILITY OF SOIL PDF DOWNLOAD


Organic manures are of several kinds some of which are discussed below: Solid and liquid excreta as dung and urine of all farm animals are termed farmyard manures.

They fertility of soil ready made manures and contain nitrogen, phosphorus and potassium.

The farmyard manures of different animals vary greatly in their composition but they are good for all types fertility of soil soils and all the crops. Farmyard manure when collected in field in exposed condition for several months shows considerable loss of fertilizing value as upon decomposition a considerable amount of ammonia is lost by volatilization.

Therefore, it is important to keep manure protected from weather and manure preparation should fertility of soil carried out in trenches of about a metre depth.

Soil Fertility – Its Meaning, Causes and Maintenance (With Diagram)

When the trenches are filled with dung etc, the surface is covered with a cow dung-earth slurry. In about 3 months the manure becomes ready for use. Compost manure can be prepared from a variety of refuse materials, such as straw, sugar cane refuse, rice hulls, forest, fertility of soil, weeds, leaves, kitchen wastes.

In the fertility of soil, 30 cm thick layer of plant residues moistened with dung, urine and water is formed and then a second layer of about 30 cm thickness of mixed refuse is spread over it and moistened with slurry. The operation is repeated until fertility of soil heap rises to a height of about 50 cm above the ground level.

Soil Biological Fertility

The top is fertility of soil covered with a thin layer of moist earth. After three months of decomposition the material is well mixed and again covered. After a couple of months the manure is ready for use. There are two types of composts: Compost manures are rich in all plant nutrients.

Soil fertility - Wikipedia

Green manuring is the practice of growing, ploughing and mixing of green crops with soil to improve soil fertility and fertility of soil. Its effects on soils are similar to those of farmyard manures.

It is cheap and the best method to increase soil fertility of soil as it can supplement farmyard and other organic manures without involving much cost. Green manures add nitrogen and organic matter to the soil for the improvement of crop yield.

FERTILITY OF SOIL PDF DOWNLOAD

Through green manuring mobilization of minerals, reduction of organic nutrient losses due to fertility of soil, leaching and percolation, and improvement in physical, chemical and biological activities of the soil can be achieved.

Green manuring also improves soil aeration and drainage conditions. For green manuring both leguminous and non-leguminous crops are used.

In India, leguminous crops such fertility of soil sannhemp sanaidhaincha, berseem, clover, Phaseolus mungo, cowpea, are generally used for green manuring.

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Sawdust can be used as bedding material to conserve animal urine or for making compost. It is a low fertilizing material but it is definitely richer than wheat fertility of soil in calcium.

In modem system of sanitation, water is used for removal of human excreta and other wastes. Sewage consists of two components: Sewage is quite rich in several plant nutrients and can be used for fertilizing the crop by irrigating the soil directly with sewage water but there is a danger for the spread fertility of soil several human diseases.

Fertile Soil: Understanding Fertility Levels and Inputs – Eco-Farming Daily

Of the elements known to be essential for fertility of soil growth, nitrogen Nphosphorus P and potassium K are required by plants in pretty large amounts, and are therefore, designated as fertility of soil ox primary nutrients while calcium, magnesium and sulphur are secondary nutrients.

For acid soils, use of Ca and Mg is necessary. Seven elements iron, manganese, boron, molybdenum, copper, zinc and chlorine are required in trace amount and hence called micro-nutrients. Under continuous cultivation our soils are losing organic matter and mineral nutrients faster than they can be replaced.



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