agro chemicals manufacturers in Kolkata india

An agrochemical or agrichemical, a contraction of agricultural chemical, is a chemical product used in agriculture. In most cases, agrichemical refers to pesticides including insecticides, herbicides, fungicides and nematicides. It may also include synthetic fertilizers, hormones and other chemical growth agents, and concentrated stores of raw animal manure.

Many agrichemicals are toxic, and agrichemicals in bulk storage may pose significant environmental and/or health risks, particularly in the event of accidental spills. In many countries, use of agrichemicals is highly regulated. Government-issued permits for purchase and use of approved agrichemicals may be required. Significant penalties can result from misuse, including improper storage resulting in spillage. On farms, proper storage facilities and labeling, emergency clean-up equipment and procedures, and safety equipment and procedures for handling, application and disposal are often subject to mandatory standards and regulations. Usually, the regulations are carried out through the registration process.

An agrochemical is any substance used to help manage an agricultural ecosystem, or the community of organisms in a farming area.

Agrochemicals include: 
 

(1) fertilizers, 

(2) liming and acidifying agents,
(3) soil conditioners,
(4) pesticides, and 
(5) chemicals used in animal husbandry, such as antibiotics and hormones.

The use of agrochemicals has been critical to the raising crops for food. However, some of these chemicals cause substantial environmental and ecological damage, greatly reducing their benefits.

Fertilizers

Fertilizers are substances that are added to farmlands to encourage plant growth and to increase crop yields. Fertilizers may be chemically manufactured (synthetic) or be made from organic (living) material such as recycled waste, animal manure, or compost (decaying vegetation). Most fertilizers contain varying amounts of nitrogen, phosphorus, and potassium, which are inorganic (nonliving) nutrients that plants need to grow. 

Crops planted in soil that is either too acidic or too alkaline (basic) cannot obtain the proper nutrients they need to grow from that soil. Acidic soils, an especially common problem in agriculture, can be caused by various factors, including acid rain (precipitation that contains weak sulfuric and nitric acids) and the use of certain types of fertilizers. Acidic soils are commonly neutralized by adding compounds that contain calcium, usually in the form of powdered limestone or crushed oyster or mussel shells.