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Where to buy organic fertilizer in Kolkata? A buyer’s guide

Do you want to buy organic fertilizer in Kolkata?. Kolkata is one of the largest metro city in India. If you want to buy organic fertilizer in Kolkata from a manufacturer. Then please visit online business directory websites [click here] and search for organic fertilizer manufacturer in Kolkata. In general, finding an organic fertilizer manufacturer in Kolkata would be easy.

However, if you want to buy organic fertilizer in Kolkata from a local shop near you it gets complicated. To explain this, if you search on Google “buy organic fertilizer in Kolkata near me” it will give you a list of organic fertilizer manufacturers in Kolkata [Click here to see]. The point often overlooked this search result won’t help you because the organic fertilizer manufacturer won’t sell in small quantities.

If you find an “organic fertilizer shop near me” on the positive side, you are lucky. However, it is important to realize that no organic fertilizer shop in Kolkata is genuine. To put it differently, not all organic fertilizer shop owners in Kolkata serve customers with the best interest.

The most compelling evidence as follows;

Organic fertilizer brands known to you may not be available. The organic fertilizer shop owner may keep those brands that are more profitable to him

The organic fertilizer shop owners may not offer you the best discounts due to less competition

Another key point is you may end up buying fewer quality products because you have no option

Soil formation is a slow process. It takes several hundred years to form a good layer of the soil. This layer is of real importance when it comes to farming or gardening. Though it takes a lot of time for the soil to form, it takes one season to ruin that soil cover. It generally happens due to use of chemical fertilizers. Hence recent trends show an increase in the use of organic fertilizers. The city of Kolkata is no exception to this trend. Day by day many people and farmers are adapting to this trend. But most of them are not aware of the best places to buy organic fertilizers in Kolkata. SAOSIS is the best online platform to buy organic fertilizers. Here are the reasons why it is the finest platform in Kolkata and even other places.

What are Organic Fertilizers?

Organic aka biofertilizers are derived from animal and plant sources. They do not contain any harmful materials. There are 15 common Biofertilizers in the market such as poultry manure, animal waste, cow dung, alfalfa meal, cottonseed manure etc. Organic fertilizers improve soil quality, a structure of the soil layers. Organic fertilizers may have a few disadvantages like; they act a bit slow, an exact nutrient ratio is unknown etc. Overall, there are many advantages than negative points and that is why a number of people are opting for organic fertilizers.

Why go for Organic Fertilizers?

Organic fertilizers are very vital when it comes to conservation and nourishment of the soil along with crops. Chemical fertilizers have ill effects on soil and ultimately on crop quality. Crop quality directly affects human health as humans primarily consume agricultural products. Chemical fertilizers degrade land and reduce ground potential. When farmers get less output or yield, they are the great danger of economic loss. Chemical fertilizers percolate down the layers and affect groundwater quality too.

Bio fertilizers do not possess any threat to land or even groundwater system. They help in building and conserving an eco-friendly system. They supply organic matter and replenish soil resources. Crops get all the necessary nutrients naturally from nourished soil and they proliferate to their best possible extent.

Buy organic fertilizer in Kolkata

Advantages of buying online

  • Need not to have to spend money or time
  • Get fertilizers at your doorsteps
  • Save your valuable time and use it for your other works
  • Get the best products at a click of a mouse
  • SAOSIS products come with a user-friendly manual
  • Get attractive discounts and offers on online purchase
  • Experts also provide you consultancy services along with products
  • All products are registered and certified by agro-experts and scientists
  • Free shipping on most of the products
  • Money back guarantee if products fail to deliver
  • All products are according to the ‘1985 Fertilizer control Order’

Difference between online and offline shopping

There are many shops in Kolkata city which deal with organic fertilizers.  You will find them in every market but the problems associated them make the shopping very inconvenient. There are some shops which sell only in bulk quantity and do not sell according to your requirements. Remaining shops which sell in smaller quantities charge you more up to double the normal price.

Farmers, who have bigger chunks of land, they tend to buy fertilizers in big quantities. Hence they look out for wholesaler or bulk dealer. Great numbers of dealers are available in the market but they charge you a hefty fee for transportation and delivery. Instead, farmers can order organic fertilizers online, where they need not have to pay the hefty amount as delivery charges.

Small farmers or gardeners in Kolkata cannot afford to spend a lot of money on fertilizers. Hence, they look out for small quantity yet an economic option. Online purchases are easy and you can buy products any in quantity.

Online purchase and Industry

There has been a significant increase in the number of Rooftop gardens in Kolkata.  Rooftop gardens mostly have plants in the pots or they have a restricted area build for this purpose. Hence it becomes an isolated unit. It lacks an internal supply of nutrients as it happens in natural conditions below the ground. Hence, rooftop garden soil always needs organic ingredients, which can only be supplied via biofertilizers.

Many homes, IT companies, corporate complexes, schools, colleges, even Government offices have small gardens. All these institutions and complexes require various organic fertilizers. If they opt to buy offline then they have to spend manpower and extra money to purchase fertilizers. Instead, they choose to buy them online, which not only saves time but digital invoices are easy to maintain too.

What Online selling platform exactly does?

At SAOSIS, you can either buy a small quantity or a larger one; you get all the products at discounted rates. There is no price discrimination on the basis of portion size. Plus you get 24/7 technical support from the SAOSIS support team. You do not just get organic fertilizers but other products too. All products and fertilizers are made after an extensive study of Climate of Kolkata, lithology, geomorphic conditions, and groundwater availability of the city. To get a complete list of products and services; you can check out either product or contact us sections. Just visit the website, see the desired product and order it within a few minutes and go worry free. Buying organic fertilizers online in Kolkata has never been so easy and useful before.

Buy Natural & Organic Fertilizer

What is natural fertilizer?

Natural fertilizers are organic fertilizer products that have been extracted from living things or from the earth. They can be either plant-derived or animal-derived. Examples of natural fertilizer would be mushroom manure, blood meal, bone meal, cottonseed meal, kelp meal, poultry or horse manure (aged) and compost.

What is organic fertilizer?

An organic fertilizer is a plant fertilizer that is derived from organic sources. Organic fertilizers can range from organic compost to cow manure, but they must be derived from all-organic sources.

Chicken droppings from an organic farm would be considered an organic fertilizer. Additional examples of organic fertilizer sources include kelp, guano, bone and blood meals, molasses, and fish emulsions.

What is the difference between natural or organic fertilizer Vs. inorganic fertilizer

Both organic and inorganic fertilizers provide plants with the nutrients needed to grow healthy and strong. However, each contains different ingredients and supplies these nutrients in different ways. Organic fertilizers work over time to create a healthy growing environment, while inorganic fertilizers provide rapid nutrition.

Organic fertilizers release nutrients only when the soil is warm and moist, which tends to correspond with your plants’ times of greatest need. However, they rely on soil organisms to break down organic matter, so nutrients are released more slowly than they are from inorganic fertilizers. This slow-release method reduces the risk of nutrient leaching, but it takes time to supply nutrients to plants. In contrast, inorganic fertilizers provide this nutrition in plant-ready form immediately. However, the concentration of nutrients increases the risk of burning the plant, and the rapid release of nutrients may leach them deeply into the soil and water table where plants can’t access them.

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Adjust Soil pH after Planting

How to adjust soil pH after planting

Adjust Soil pH after Planting. Soil pH indicates if your soil is acidic, neutral, or alkaline. While most of the plants grow in any type of soil, some plants have specific soil requirements. Soil pH affects absorption of nutrients from the soil by the plants. In some cases, minerals are unavailable for absorption by plants. So based on the soil pH, we choose the appropriate plant. Or, we alter the soil based on our choice of plant.

Things to Consider while adjusting soil pH after planting

Even if you begin with an ideal soil, over time the soil pH changes due to a number of factors. Excess use of chemical fertilizers can alter the soil pH. Heavy rainfall or too much watering can drain your soil of the essential nutrients and can change the soil pH. Similarly, pollutants and resulting acid rain can make the soil acidic. Excessive farming of a crop can lower the pH. E.g. Legumes. So we need to take corrective measures, as often as possible, to revert the soil pH.

Analysis of How to Adjust Soil pH after Planting

pH scale for various soils

Begin by taking a Soil Test at various depths across various areas for an appropriate result. Along with the soil pH, test result also gives us the list of nutrients and minerals absent in our soil. Even if the soil pH is appropriate, lack of some nutrients can cause inconsistencies in plant growth. If we have to alter the pH as well as supply a specific nutrient, we can choose an amendment correctly based on the results.

How to Raise Soil pH

  • Fluid lime and pelletized lime can immediately raise soil pH. Hydrated Dolomite lime can be added if magnesium is also deficient. Adding lime improves phosphorus and calcium availability in acidic soil. The high amount of lime can hinder potassium and magnesium absorption by plants.
  • Highly soluble potassium carbonate can be used instead of lime as part of irrigation. It acts quickly, reaching greater soil depth. But it is a synthetic material.
  • Wood ash that is produced from unpainted wood can also be used sparingly, instead of lime in sandy soils to raise pH.
  • Oyster shell flour, crushed egg shells, or, aragonite can be used to increase the pH.

How to Lower Soil pH

  • Adding organic material like treated manure, green manure, compost, alfalfa meal, peat moss, pine needles, etc. to your alkaline soil, improves microbial activity, reduces pH, improves soil, and increases phosphorus availability. But it lowers pH gradually.
  • Similarly, humic acid and fulvic acid in powdery or liquid form can be mixed with seaweed to lower the pH.
  • Vinegar or citric acid diluted with water can lower pH of the alkaline soil.
  • Synthetic fertilizers like Aluminum sulfate and ammonium sulfate are acidifying. They quickly lower pH and you should use them cautiously. Elemental sulfur is organic, requires bacterial action to lower pH and is slow. Copper sulfate chelated with citric acid may be used if copper is also deficient in the soil.

How to apply?

While adjusting soil pH after Planting, these amendments can only be added on the surface. So, it will alter the pH of the soil only to some depth. Mix powdery forms with water to use as liquid fertilizer. Take care to avoid direct application on roots, leaves or other plant parts. The pH of water differs – most tap water is alkaline, while rainwater is acidic. Take this into consideration while diluting the mixture. Take soil test at regular intervals, to check the progress. Continue altering your pH, only if required.

Conclusion – How to Adjust Soil pH after Planting

Mulching with organic material can help prevent draining of nutrients during heavy rainfall or watering. Similarly, adopt such natural organic methods which promote sustainable farming, to achieve and maintain the soil pH.

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How Do I make My Own Organic Fertilizer?

Making Own Organic Fertilizer. Food and water are the basis for our survival. But with genetic modification, growth hormones and toxic chemicals used in cultivation – nutritional value of our intake is deteriorating. So, the world is shifting towards organic farming (use of organic fertilizer) to promote healthy eating. Even nations like UAE, with less rainfall and dry environment, are using innovation and technology to carry out farming. So why not make your own  organic fertilizer.

Components of organic fertilizer

The Way Ahead in making Own  Organic Fertilizer

Organic farming uses only naturally sustainable methods and products. Traditional methods that are harmless to our health and earth, are used with some scientific improvisation. Some of the techniques employed in Organic farming are,

  • Use of organic fertilizers like compost, etc.
  • Change of crops to enrich the soil
  • Reduction of weed growth through mulching, digging, etc.
  • Use of natural pesticides
  • Use of traditional farm tools

If you make your own  organic fertilizer. you create Wealth out of waste

Bio-degradable waste when discarded decomposes and emits greenhouse gases, which cause global warming, pollution, etc. So to reduce the waste sent to the dump yard, we should recycle or process it. Some easily available items that can be processed into Organic fertilizer under controlled environment are,

  • Treated Manure – waste of cattle, sheep, poultry and other farm animals
  • Chemical-free crop residue, lawn trimmings, foliage, etc.
  • Household waste – vegetable & fruit scraps, egg shells, coffee & tea residue, paper, wood, etc.

You can make your own  organic fertilizer by Composting process

Select a ventilated place with adequate sunshine but with partial shade. You can compost in a pit, or bin or compactor. Place 1 inch of straw in the base. Gather your waste items in the compost – ideally, carbon-rich items like newspaper, dried leaves are mixed with green waste for carbon-nitrogen balancing. Sprinkle little water. If your pile is too dense, add sawdust, cardboard, etc. to allow air flow. Leave it for few days for microbial action. Constantly check the temperature (pile will gradually heat up), odor and moisture content (not sopping wet nor dry). If the compost temperature drops suddenly or if it emits a foul odor, it’s time to turn your pile to allow air flow. When the pile changes into a dark soil like form, your fertilizer is ready. Mix it with your garden soil and plant 2-3 weeks later or just cover your soil with the fertilizer.

You can make your own organic fertilizer by Vermi composting process

Vermicomposting is composting done using earth “worms”. Unlike composting, it requires moderate temperature, wet bedding for the worms to thrive. Therefore, avoid a large pile and keep worm-bins in a shady area like inside of the house. First, add wet newspaper or cardboard followed by wet soil to the worm bins. Add food scraps; leave it for a couple of days, before introducing the worms. Worms will aerate the pile, so you don’t have to turn it. If you have a large pile, first compost it to kill the germs at high temperature and then proceed with vermicomposting in numerous small worm-beds.

Liquid Fertilizers

While organic fertilizers act slowly, liquid fertilizers provide quick nourishment to the soil. Mix manure or any green waste with water. Leave water with manure for 3-4 days (after this it emits a nasty smell); Green waste for 2 weeks. Stir occasionally. The nutrients from the waste seep into the water. Remove only the concentrated liquid. Mix the liquid fertilizer with adequate water and spray it on the roots of the plant. Make a fresh batch whenever needed with manure; Plant concentrate can be stored for few days.

Organic fertilizer is a mixture of day to day waste


Making own organic fertilizer is ecologically sustainable, affordable methods of creating fertilizer anywhere. Since the type of soil, the nature of plants, weather conditions vary with the place, the amount of organic fertilizer that can be used can only be determined by a soil test. So make your own organic fertilizer

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How do you fertilize the soil with organic fertilizer or chemical fertilizer


Organic methods of soil enrichment

How do you fertilize the soil. Fertilizers supply the essential nutrients to the soil. Hence, they are vital to fertilize the soil. When the soil in your garden is not naturally rich, add fertilizer to improve the plant growth and yield. Nutrients are released from the fertilizers, depending on the microbial activity, temperature, moisture content, and pH of the soil. Hence take a soil test to determine the condition of your soil. All the fertilizers contain basic components – nitrogen, potassium and phosphorus, and some minerals and micronutrients like zinc, copper, magnesium, sulfur, etc.

Types of Fertilizers to fertilize the soil

You can choose one or more fertilizer to fertilize the soil based on your requirement.

  • Chemical: These synthetic fertilizers can give you the immediate result but will deteriorate the soil in the long run. They are available as granules or in a powdery form. Use it for some cool season vegetables like lettuce and radish for fast-release of nutrients and quick harvesting.
  • Slow-release: These granular fertilizers release the nutrients slowly into the soil and provide long-term results. They have fewer chances of getting washed away by rain. It is ideal for raised bed gardens, container gardens, and flowering plants. E.g. Methylene Urea, Urea Formaldehyde
  • Controlled-release: These inorganic fertilizers are concentrated and are highly effective in increasing the yield. Temperature and soil conditions do not affect their performance. Ideal for lawn and flowering plants and vegetable, fruit garden.
  • Covered: These fertilizers are protected by an outer polymer, plastic or resin coat and nutrients are released gradually to the soil. Water and temperature affect the rate of nutrient release. Ideal for lawn, raised bed, inclined planes of the garden even during rain. E.g. Nutricote, Osmocote, etc.

    Organic Matter in Soil

  • Natural Organic: Commercially bought or prepared at home as compost or manure, organic fertilizers are an ideal choice. Though they release the nutrients slowly, they improve the soil quality steadily and are environmentally safe. Until these organic fertilizers break down, add slow release or controlled release fertilizers to the soil. Special organic fertilizers are available for lawn, container garden, roses, tomato, etc. For flower and fruit trees, add bone meal or soft-rock phosphate, blood meal or organic alfalfa meal, alfalfa pellets.
  • Liquid: Chemical or naturally organic, liquid fertilizers immediately provide nutrients to the plant. Organic fertilizers include compost tea, seaweed, etc. There is regular use of liquid in container gardens. E.g. Nitrosol

Propagation Types

There are several methods of applications of fertilizers in the garden. Following paragraphs discuss them below.

  • Broadcast application – For lawns, or any large garden, before planting or sowing, spread dry fertilizer using tools like, hand rotary, etc. Till or water it into the soil.
  • Deep Soil Application – Till the soil to a depth. Mix dry fertilizer or organic manure well with the soil using a rototiller or plow.
  • Top dress application – Place granular fertilizer or organic matter around the base of the plants or as a strip in row planting. It is ideal for shrubs, perennials, vegetables.
  • Base application – Apply Liquid or water-soluble fertilizer at the base of the plant and water it. The water absorbs nutrients hence, liquid fertilizers are more suitable for container and trees.
  • Foliar Application – For reviving the plant immediately, apply diluted liquid fertilizer directly on the leaves of the plant. Opt for this when the soil is too dry for transmitting nutrients or when the leaves are wilting. Ideally used for vegetable and fruit plants.


Fertilize your soil before planting or sowing the seeds, preferably with organic matter. This will give the soil ample amount of time to absorb the nutrients. You cannot change things once you finish planting, so plan ahead and nurture your soil. How do you fertilize the soil