What are the advantages and disadvantages of fertilizers Class 8? (2023)

What are the advantages and disadvantages of fertilizers Class 8?

Advantages of fertilizers

They are quick in providing plant nutrients and restoring soil fertility. They are portable and easy to transport. Plants easily absorb fertilizers. Fertilizers improve and increase the productivity of many crops such as wheat, maize, and rice.

They are used to ensure good vegetative growth giving rise to healthy plants. Advantage: They help in good vegetative growth and produce healthy plants. Disadvantage :Excessive use of fertilizer leads to pollution of water.

Disadvantages Of Fertilisers

Expensive. The ingredients in the fertilizers are toxic to the skin and respiratory system. Excessive use of fertilisers damages the plants and reduces soil fertility. Leaching occurs and the fertilisers reach the rivers causing eutrophication.

1. They get washed away by water easily and cause pollution. 2. They harm the microbes present in soil.

Fertilizers are chemical chemicals that are applied to crops to increase output. Farmers use these every day to increase crop output. The fertilizers contain nitrogen, potassium, and phosphorus, all of which are essential nutrients for plants.

Weed infestation reduces yields by up to 50% in some crops. Some weeds produce hazardous chemical inhibitors into the soil, which can injure crop plants, humans, and cattle. Weeds compete with crops for resources such as water, nutrients, light, and space, lowering agricultural yields.

Organic fertilizers release nutrients into the soil slowly. Synthetic fertilizers tend to release nutrients too quickly, which leads to fertilizer burns. By slowly releasing nutrients into the soil, the plants could absorb all the nutrients they need to grow without stressing out or over-fertilizing the crops.

If we use too much, it can kill our plants. Chemical fertilizers can build up in the soil, causing long-term imbalances in soil pH and fertility.

What are the disadvantages of bio fertilizers?

The biggest disadvantage of using an organic fertilizer is that it may not contain primary nutrients like nitrogen, phosphorous or potassium, also known as NPK. Manure-based fertilizers contain these nutrients and are still considered organic. However, many others don't contain significant quantities of NPK.

Nitrogen, phosphorus and potassium, or NPK, are the “Big 3” primary nutrients in commercial fertilizers. Each of these fundamental nutrients plays a key role in plant nutrition. Nitrogen is considered to be the most important nutrient, and plants absorb more nitrogen than any other element.

Levelling helps to prevent soil erosion caused by wind or air. It helps in sowing the seeds uniformly, and thus helps the plants to grow uniformly too. It helps in proper irrigation by allowing the water to get distributed uniformly throughout the soil.

Urea, slurry, NPK- nitrogen, phosphorous, and potassium.

Their major advantage is adding bulk to the soil. Except for manure, the organics generally release their nutrients over a fairly long period. However, the potential drawback is that they may not release enough of their principal nutrient at a time to give a plant what it needs for best growth.

Fertilizers or fertilisers are chemical compounds or mixtures delivered as solids, liquids or gases, that supply essential nutrients to crops in soluble forms for the growth of plants. Some Common examples of fertilizers are ammonia, potassium chloride, and urea.

What are the advantages of natural fertilisers?

Organic fertilizers are less concentrated than synthetic fertilizers and are therefore much safer to use. Organic fertilizers are ecological, environmentally friendly and non-toxic in nature, making them the best fertilizers for plants and crops in greenhouse farming.

Use of pesticides have proved to be advantageous: greater food output, increased earnings for farmers, and disease prevention. Despite the fact that pests devour or injure a substantial percentage of agricultural crops, it is likely that they would consume a higher percentage if pesticides were not used.

Presence of weeds increases the cost of agriculture and hinders the progress of work. It increases the irrigation requirement. They reduce the value of produce or otherwise adds the cost of cleaning. Some weeds when eaten (Cleome viscosa) by milch animals will produce an undesirable odour in the milk.

Disadvantages of Indoor Plants

Some plants require more maintenance than others and have different cultural needs, so it is important to choose plants suitable for the amount of light and humidity in your home environment. Plants that do not receive adequate light or moisture may wilt and drop their leaves.

Fertigation can synchronize nutrient supply and crop nutrient requirement, which enhances water-use efficiency, nutrient-use efficiency, and yield, while also reducing nutrient losses via leaching, ammonia volatilization, denitrification and weed pressure.

On the other hand, the disadvantages to widespread pesticide use are significant. They include domestic animal contaminations and deaths, loss of natural antagonists to pests, pesticide resistance, Honeybee and pollination decline, losses to adjacent crops, fishery and bird losses, and contamination of groundwater.

They may escape from the soil and pollute ground water, lakes and rivers. (ii)These can also kill bacteria and other micro-organisms in the soil which means some time after their use, the soil will be less fertile than ever before. (iii)The continuous use of chemical fertilizers has led to degradation of soil health.

What are 3 disadvantages of using pesticides?

Pesticides can contaminate soil, water, turf, and other vegetation. In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants.

Explanation: The disadvantages of organic farming are it is labor-intensive, sensitive to economic decline, requires more planning, and can't benefit from synthetic chemicals. The advantages are that it is less susceptible to natural and financial risks, more efficient, sustainable, and environmentally friendly.

When nitrogen fertilizer is applied faster than plants can use it, soil bacteria convert it to nitrate. Water-soluble nitrate is flushed out of soils in runoff, where it pollutes groundwater, streams, estuaries, and coastal oceans. In farming communities, it's not uncommon for nitrate to render drinking wells unusable.

The Disadvantages of Liquid Fertilizer

The main disadvantages that come with liquid fertilizer is that they can sometimes be more expensive than granular fertilizers, and they are more susceptible to volatilization (or turned into a gas and potentially evaporated into the atmosphere).