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B1 -ইউনিট || জাহাঙ্গীরনগর বিশ্ববিদ্যালয় || 2013

English

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English

I have spoken the truth
I have saying the truth
i have told truth.
Thad told truth
Did you do a mistake?
Have you do a mistake?
To you made the mistake?
Did you make a mistake?
amusing
linger
serious
cumulous
Please make me a favor.
Please do me a favor.
Please made me a favor.
Please done me a favor.
The develop of hybrids has increased production
To develop of hybrids has increased production.
The development of hybrids has increased production.
To develop hybrids has increased production
broad
reliance
diffidence
fragmentary
antagonistic
warlike
runt
hospitable

Fertilizer is any substance that can be added to the sail  provide chemical elements essential for Plant Nutrition, Natural substances such as animal droppings and straw haves been used as fertilizers for thousand of years, and lime has red used since the Romans introduced it during the , It was not until the 19th century, in tact, the chemical fertilizers become popular. Today both Natural and synthetic fertilizers are available in a variety of forms. complete fertilizer is usually marked With a formula consisting of three numbers, such as  Which is designate the percentage content of nitrogen, phosphoric acid, and potash in the order stated. Synthetic fertilizers are in either solid or liquid form. Solids. in the shape of chemical granules are popular because they are easy to ore and apply. Recently, liquids have shown an increase in popularity, accounting for about 20 percent of the “nitrogen fertilizer used throughout the world. Formerly, powders were also used, but these were found to be less convenient ft either solids or liquids. Appropriate uses of fertilizer ray no harmful effects on the soil, the crop, or the consumer. However, excessive uses of fertilizer not only damage crop but also the animals or humans.
Local research and harmful effects of fertilizer
Advantage and disadvantages or quid alliterative
A formula for the production of fertilizer
. Content, form and effects of fertilizer
nitrogen is greater than potash
Potash is greater than phosphoric acid
phosphoric acid is less than nitrogen
nitrogen is less than phosphoric acid
Powders are more popular than ever,
Solis are difficult to store
Liquids are increasing i popularity
Chemicals granules are difficult to apply.