Which nitrogen fertilizer is better?

Which nitrogen fertilizer is better?

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Farmer brothers have been seen on Facebook not being able to decide which fertilizer to meet their crop's nitrogen needs,

Friends, scientists have divided plant diet into 16 types for our convenience and convenience,

95% of the plant's diet consists of three nutrients: carbon, hydrogen and oxygen; it is a three-component, water and provides itself with earth,

The remaining 5% of the plant's diet is man-made,

It is comprised of 5% diet, 13 nutrients, and these 13 ingredients are divided into 3 groups by scientists,

The first group,

Scientists in this group have incorporated nutrients that plants need in large quantities,

 This is why these ingredients are called macro nutrients,

This group contains 3 ingredients - nitrogen, phosphorus and potash,

The second group,

Scientists in this group contain nutrients that plants need in small quantities, which is why these ingredients are called secondary nutrients,

The group contains 3 ingredients, calcium, magnesium and sulfur (sulfur),

The third group,

Scientists in this group have kept the nutrients that plants need in small quantities, which is why these ingredients are called micro nutrients,

The remaining 7 ingredients, iron, copper, zinc, manganese, boron, chlorine and molybdenum, are kept in the same group,

According to agricultural scientists, plants need the highest amount of nitrogen,

There are many chemical compounds available in the market, such as urea, nitrophase, ammonium nitrate, ammonium sulfate, and NPK, to meet the nitrogen requirements of plants.

But to choose which of these nitrogenous compounds, below they are all briefly analyzed to make it easy to select the best nitrogenous compound,

1- Ammonium sulfate,

The nitrogen content of this fertilizer is 21%, while the sulfur content is 24%, the fertilizer has a pH of 3.8,

That is, the amount of sulfur in this mixture is higher than the amount of nitrogen, so it is better to be called sulfur fertilizer rather than nitrogenous fertilizer,

Because plants require a small amount of nitrogen at an early stage of life, ammonium sulfate at this stage satisfies this need for plants,

Plants need 50% of their total nitrogen requirement during the later stages of life (fruit lifting / cauliflower), at this stage the crop must be fed either high amounts of ammonium sulphate, or any other nitrogenous fertilizer. Prefer,

2- Ammonium nitrate,

This mixture contains 26% of the nitrogen content, its pH value is 7,

It is a highly explosive substance, combining up to 8% lime (calcium carbonate) to prevent explosion, hence it is called calcium ammonium nitrate (CAN),

The amount of 8% lime means that 4 kg of lime is poured into every 50 kilograms of ammonium nitrate,

Friends, Most of the lands of our homeland of Pakistan are basic (high lime), because of this lime, their pH is also high,

Therefore ammonium nitrate fertilizer (8% lime content) does not suit our lime-rich areas,

This fertilizer has a longer impact on crops than urea, which is why most farmers put it in the later stages of their crop life (although in the final stages, the crop needs more nitrogen in a short period of time).

3- Nitrophos,

The fertilizer contains 23% of the nitrogen content (phosphorus is also almost equal in quantity), the fertilizer has a pH of 4,

The fertilizer also contains 9% lime (calcium carbonate), which means 4.5 kg of lime is added to each 50 kg sack of nitrophase,

In the lands of our country Pakistan, limestone is already the highest in the world, so the use of lime, fertilizers in our fields, or the use of lime fertilizers in the fields will further worsen our area

4- Urea,

The composition contains 46% of the nitrogen content, and does not contain lime (calcium carbonate),

This mixture belongs to the carbamate group,

It is an unstable compound, it flies directly from the solid form into gas,

It absorbs direct moisture from the air, leaving it open in the air, or leaking into the field without irrigation, immediately flies to form ammonia gas,

If the humidity in the air is low, or the heat is intense, or the breeze is moving, the conversion of urea to gas intensifies,

 Urea has a pH of 8.5 which is not compatible with our basic soils, but when mixed with a sufficient quantity of water (via drums), it acts as a chemical with water and converts it to mild acid (nitric acid). Goes, and its pH drops,

But due to the large amount of irrigation water (2 to 3 million liters of water is needed for an acre of irrigation), the acid produced will be so thin that it will not harm the soil or the crop. Yes,

It is important for zinc and sulfur to remain in the soil in order for the crop to consist of nitrogen.

If 35 kg of zinc sulphate powder is also flushed with each sack of urea fertilizer, then nitrogen as well as zinc and sulfur are supplied to the crop, doing so will double the effect of nitrogen on the crops.