What are the benefits of Duenger


All plants need nutrients and since these are limited in the soil they have to be added back to the soil in some way. Nature usually does this itself, in which the plant loses its leaves in autumn and these are converted back into nutrients by earthworms and other animals. This also works in the natural garden if there is not too much intervention. If the garden and planters are regularly supplied with compost, all nutrients are returned to the soil in this way. However, if apples, pears and vegetables are taken from the home garden, additional fertilization must be used to compensate for this. This is also necessary in the ornamental garden if the lawn should always be beautifully green, flowering plants should have a lush pile and there is not always enough compost on hand.

Which plants is organic fertilization enough for?

Wild plantings can only be supplied with compost, as the addition of mineral fertilizers would lose their wild character. The other flowers, for example magnificent perennials and flowering perennials such as autumn anemones, astilbe, columbine, monkshood and so on, are supplied with compost and, in the spring, with other organic fertilizers. Do the same in the vegetable garden. If the requirements for vegetables are not quite so high, fertilizing with organic material is sufficient here as well.

Disadvantage of organic fertilization

After adding organic fertilizer, the release of nutrients cannot be controlled and cannot be precisely assessed due to the slow conversion of the organic matter. Traditional fertilization is not suitable for correcting acute nutrient deficiencies. However, organic fertilizers are already available in specialist shops in mixed form ready for spreading or in liquid form. It should also be noted that, for example, horn shavings, blood meal, castor meal or bone meal each contain only one or two different nutrients. Details are given on the packaging. Often one or two substances are mixed, so that the exact ratio only ever depends on the manufacturer's information.

What is organic fertilizer made of?

The organic fertilizer consists mainly of animal and vegetable origin. That means that every compost application is an organic fertilization. But also horn shavings, horn meal, blood meal and bone meal made from animal hooves and animal horns. The fresh manure from horses and cattle, which can only be spread in late autumn, is also included. However, it is better to first compost the manure for 6 months. Pig manure is forbidden due to the strong unpleasant smell. Plant manure, for example from nettles, is also part of it.

The most important nutrients

The main nutrients for plants are nitrogen, phosphorus, potassium and a little bit of lime and magnesium. Trace elements such as iron, copper, manganese, molybdenum, zinc and boron are also part of a smooth cultivation process. Nitrogen promotes the growth of the shoots and leaves, phosphorus promotes the formation of flowers and fruit, and potash strengthens the cell tissue, i.e. branches and stems. Lime is important not for the plant itself, but for the soil.

The effect of the fertilizer

The organic material is not suitable for direct fertilization. The nutrients must first be made available by water and soil organisms, and the soil temperature is also important. It therefore takes a comparatively long time before the nutrients can be used. The advantage, however, is that the fertilization lasts for a long time. Horn shavings, for example, need 2-3 years to implement in the ground, it is a little faster with horn meal. But they can already be used when planting or sowing, as there is no risk of burns.

For which plants is the organic fertilizer used?

All organic fertilizers can be used for all garden crops. Over-fertilization is almost not possible, provided that the recommendations are not significantly exceeded in the case of purchased fertilizers such as horn meal, horn shavings and the like. Since organic fertilizer hardly leaches out of the soil, it is considered environmentally friendly. This type of fertilizer is compulsory for organic gardeners and particularly valuable for natural cultivation. The organic fertilizer is only suitable to a limited extent for vascular culture, as the active ingredients must first be converted by the microorganisms living in the soil. An organic liquid fertilizer may be more advantageous here.

In-house pesticides against pests

Despite loving care of the garden, there is always a problem with pests. Since organic fertilization and chemical clubs are absolutely incompatible, some homemade sprays made from natural substances are very effective when used correctly. Correct use means that spraying is not carried out in strong sunlight, in rainy weather or before a thunderstorm - but that goes without saying. The best and most effective are the morning and evening hours.

Nettle extract against aphids
Let 500 g of fresh nettles (before flowering) steep in 5 liters of water for twelve to twenty-four hours. Spray undiluted against aphids.

Garlic tea against fungal infections and spider mites
Crush a medium clove of garlic and scald with 1 liter of water. Sieve and, when the broth is cold, spray undiluted.

Horsetail broth (horsetail) against powdery mildew
Soak 150 g of dried or 500 g of fresh horsetail in 5 liters of water for a day, then simmer for 30 minutes, allow to cool, strain and dilute in a ratio of 1: 5. Spray and water the plant with this brew.

Vermouth tea against aphids, scarab beetles and ant runways
Scald a teaspoon with 1 liter of water, strain, leave to cool. Spray undiluted.

Compost heap as a source of fertilizer

Anyone who owns a garden should make a compost heap. So you can make organic fertilizer yourself. Only biodegradable substances belong on the compost. Today there are many compost bins to buy in stores. Quick composters are very popular, but the classic compost heap can still be found in many places.
  • It is important not to put any cooked leftover food in the compost or any meat (raw).
  • When it comes to kitchen waste, make sure that it is free of pesticides.
  • To aerate the compost, it is enriched with leaves, scraps of wood and brushwood. Lime flour is also recommended.
Don't forget to mix the different ingredients together. You use the pitchfork or rake for this. If you want to save yourself the work, use a spherical composter. You can simply roll it through the garden. So the content is mixed well. The special composter is generally a great thing. The purchase price is high (170 euros), but it saves a lot of work and the rotting takes place quickly. The composter has a capacity of 280 liters and a diameter of 80 cm. Its four lid flaps are particularly cheap, which means that the compost can be easily removed and the good air circulation, prevents odors and ensures moisture inside.

Worth knowing about organic fertilizer in brief

A fertilizer is "organic" if its components are not available in pure form, but consist primarily of natural waste products - of vegetable or animal origin. The best known type of organic fertilizer is compost. A compost heap can be found in most gardens. Here we collect all garden waste such as leaves, straw, lawn clippings, plant parts and soil residues. From the kitchen we can enrich this collection with eggshells, potato peels, salad and vegetable waste.

With correct composting - the waste should always be carefully mixed and also kept moist - valuable humus soil is created through the work of countless microorganisms. This, distributed over our beds, closes the natural garden cycle again.Examples of organic fertilizers are: manure, guano, bone meal, fish meal, horn shavings, liquid manure, blood meal.

Benefits of organic fertilizer
  • natural long-term effect
  • provide food for soil organisms and for plants
  • can also be used for fruit and vegetables. You can't get more organic.
  • release the nutrients evenly and as needed.
  • contain not only main nutrients, but also trace elements and vitamins.
  • can be applied directly when the plants are being sown.
  • very plant-friendly, plants do not burn (when used properly).
  • contribute to a healthy, natural and loose soil structure
  • good for the environment
Disadvantages of organic fertilizers
  • The nutrients in the fertilizer must first be broken down by fungi, bacteria and other microorganisms in the soil
  • only then are the nutrients released for plants
  • Mini-organisms are only active when it is warm, so hardly any nutrients are released when the temperature is cool