Applications of Fertilisers
Plants, like people, need regular feeding. If the balance of essential substances in the body of the plant is broken - it starts to get sick and may die. To maintain this balance at the required level, you can by adding various fertilizers. What is the fertiliser? Fertilizers – are substances used to improve plant nutrition, soil properties, and to increase the harvest. This essay will be about the description of the soils; types of fertilisers and reasons for using them; a description of a specific use of fertilisers to solve a soil quality problem.
Generally soil is composed of:
1. Mineral oil (50-60% of total)
2. The organic substance (5-10%)
3. Air (15-25%)
4. Water (25-35%)
There are 6 types of soils:
Sandy - The size of grains are divided into classes : very large ( more than 3.5 mm) and large ( 3.0-3.5 mm ), medium ( 2.0-2.5 mm ) , small ( 1.5-2.0 mm ), very small ( 1.0-1.5 mm ) , thin ( 0.7-1.0 mm ), very thin ( 0.7 mm). Sand is the only type of soil that has the largest particles in compare with other five types of soil.
Silty- contains proteins, fats, carbohydrates, nitrogen, phosphorus, bacteria Coli per 1g of dry substance. However, the composition silt depends on the composition of the wastewater, the purification schemes and other factors.
Clay- when it is wet it will stick to your hands but when it is dry it won’t. Here are the main minerals that clay contains: kaolinite, andalusite, kyanite and sillimanite, halloysite, gibbsite, diasporas, aluminum oxide, monotermit, montmorillonite, muscovite, nacrite, pyrophyllite.
Peaty- is hard to be mixed with water, but once it is done it would be a nice soil for the plant growth. It also has the acidic water which ‘fights’ with diseases in soil.
Loam- contains all three components above- sand, clay and silt. Because of it, it is popular among the gardeners.
There are three types of fertilisers: nitrogenous, phosphatic, and potassium. The nitrogenous fertilizer contains an ammonia gas and the examples of them are: sodium nitrate, ammonium nitrate, urea and ammonium sulphate. If there won’t be a phosphatic fertiliser in the soil then the growth of the plant will be retarded and the leaves would be greyish. The examples of potassium fertilisers are KNO3, KCl, and K2SO4. The leaves would fall out earlier if there will be a lack of the potassium fertiliser in the soil.
In terms of nitrogen nutrition have a great influence on the growth and development of plants . With a sufficient supply plants with nitrogen in them increase the synthesis of organic nitrogen compounds . Plants form a potent leaves and stems with intense green color , and the bushes grow well , improving the formation and development of reproductive organs . However, excess nitrogen unilaterally delayed maturation of plants, they form a large vegetative mass, but little grain or tuber and root crops , cereals and flax from excess nitrogen can cause lodging . With a lack of...