examples of organic fertilizers

Chemical Fertilizers - These are nutrient supplements for plants manufactured in fertilizer factories from chemicals. They are nutrient specific i.e., they may provide only nitrogen, only phosphorus or only potassium to the soil. They are often used when a particular nutrient is..

These are nutrient supplements for plants manufactured in fertilizer factories from chemicals. They are nutrient specific i.e., they may provide only nitrogen, only phosphorus or only potassium to the soil. They are often used when a particular nutrient is required in the soil for a parti..

The fertility of soil can be enhanced by using chemical fertilizers, which provide the essential plant nutrients, potassium, nitrogen and phosphorus. The most important phosphatic fertilizer is the superphosphate of lime, Ca(H 2 PO 4 ) 2 . This is produced directly ..

Reproduction and Development..

The growth of cereal crops depletes the soil of nutrients. Growing legumes will help increase the nitrogen content in the soil. Thus, by the right choice of component crops soil fertility is improve..

It indicates the fertility of women. TFR indicates how many among reproductively potential women can actually produce children. The parameter like TFR as percentage of fertile women in a total population or as percentage of reproductively active population (male and female) indi..

Nature restores soil fertility through the following processes: 1) Weathering of rocks. 2) Earthworms and rodents help bring fresh subsoil to the surface by burrowing. 3) Release of minerals by decay of faller leaves, twigs and dead bodies of animals and plants. 4) Biological fixation of..

With global population growing by the day, birth control has become essential. There are drugs that control ovulation and if regularly consumed, function as effective contraceptives. Some examples of birth control pills are orthonovum and Enovid. Orthonovum is a mixture of norethind..