Mineral additives are used exclusively for the rapid and productive growth of cultivated plants. Diammophos is considered an excellent example complex fertilizers, rich in important nutrients: nitrogen and phosphorus. The fertilizer is environmentally safe, helps accelerate the processes of flowering and fruit set, and has a positive effect on their taste characteristics.
- Description of the drug
- What it is?
- Characteristic
- Compound
- Benefit
- Application of ammonium hydrogen phosphate for plants
- Agriculture
- Industry
- Application on various types of soils
- Light soils and fallow fields during irrigation
- Behavior in soil
- Potassium compounds
- Ammonium ion
- Phosphoric acid ions
- Potassium compounds
- Exchange absorption
- Non-exchangeable potassium
- Application on various types of soils
- Application rates of diammophos per 1 m2
- What to do in case of overdose
- Methods of application
- Rules of use for different crops
- Rice
- Grape
- Potato
- Cabbage
- Tomatoes
- Strawberry
- Lawn
- Security measures
- Storage rules
- Disposal
Description of the drug
The drug appeared on sale quite a long time ago, however, it did not gain much popularity among gardeners due to strong competition from more popular analogues.
What it is?
In appearance, Diammophos is small granules of white, gray, yellowish or pink tones, which contain three important macroelements: nitrogen, phosphorus, potassium.
Diammophos is classified as a complex preparation with a wide range of applications. It is suitable for most garden crops and is successfully used on any type of soil.
Characteristic
Diammonium phosphate is produced by a complex chemical reaction in which phosphoric acid is neutralized with ammonia. In this way, water-soluble grayish (less often pink, yellowish, white) salt is obtained in the form of small granules (up to 0.5 mm). It has excellent flowability (up to 100%) and a melting point of +155 ºC.
Compound
The fertilizer includes three essential macroelements: phosphorus, potassium, nitrogen. There is less of the last element, which is why the drug is often classified as a phosphorus-containing supplement.
When fertilizing the soil with diammonium phosphate, it should be taken into account that the composition also contains microelements: magnesium, sulfur, iron, calcium, zinc. The percentage of the latter is approximately the same. Therefore, the use of this drug covers the needs of cultivated plants for basic macro- and microelements; additional mineral fertilizing is not required.
Benefit
Diammofos is often used as an independent fertilizer, less often as part of other complexes:
- The presence of basic macroelements in the preparation guarantees a complex effect on cultivated plants. The latter grow well and become more resistant to diseases and attacks from pests.
- Fruits accumulate sugar more easily, become juicier and tastier.
- Garden crops become resistant to temperature fluctuations, prolonged heat, and prolonged rains.
- There is no accumulation of harmful substances in the crop.
- The drug is non-toxic, which guarantees the environmental purity of the grown products.
- It goes well with organic fertilizers: bird droppings, rotted manure, compost.
- Retains in the soil and is resistant to washing out. Provides plants with nutrients at all stages of growth and development.
Application of ammonium hydrogen phosphate for plants
The use of Diammophos is justified for all types of cultivated plants that do not tolerate chlorine well. Vegetables, berry bushes, and herbs are very responsive to fertilizer.
The drug is used both for treating large areas (in fields) and for growing cultivated plants in small garden plots.
Diammophos gives the best results on nitrogen-rich lands. Or in combination with organic fertilizers. This is especially true in regions with prolonged rain. Thanks to the right combination of organics and minerals, there is no leaching of useful elements from the soil. Therefore, plants grow well without experiencing nutritional deficiency.
Diammophos helps increase the yield of all crops. The quality of the harvest and the germination of grown seeds improves.Along with this, the immunity of plants increases, making it easier for them to withstand adverse environmental factors.
Agriculture
Diammophos is recommended to be applied in spring or autumn. After the snow melts, the drug is evenly scattered over the area before planting. The optimal dosage for applying fertilizer is a large spoon per meter. This is usually done before spring digging. In the absence of precipitation, watering is recommended so that the active substances dissolve and give all the nutrition to the soil. In addition, watering is recommended to prevent burns to the root system of seedlings.
The drug revives weak, diseased trees and shrubs that grow slowly and experience severe nutritional deficiencies.
Berry crops are especially responsive to its application: gooseberries, raspberries and currants. A couple of large spoons per square meter is enough. m. The same dosage is applicable for vegetable crops.
Diammophos is also used to fertilize indoor plants and garden flowers. Thanks to intensive nutrition, they grow faster and set buds.
Industry
Ammonium hydrogen phosphate is found not only in agriculture. Also used for industrial purposes:
- As a food additive for livestock (in the form of preservative E-342). The maximum dosage for consumption of this substance is 70 mg per 1000 g of weight per day. The preservative is approved for use in most developed countries of the world.
In addition, they are used in the manufacture of dairy products, bakery products, canned meat and fish, refreshing drinks, and dietary supplements. The drug regulates the acidity level of food and improves the properties of products.
- Food grade diammonium phosphate is a means of producing alloys of certain metals. Among them are zinc and bronze, copper and tin.
- The drug is used to treat some materials that are sensitive to elevated temperatures. It has fire retardant properties and is used in the production of textiles and paper products.
- In the pharmaceutical industry to prevent caking and the appearance of lumps.
- In the technical field, in particular, in the production of devices using the characteristics of ferroelectrics and piezoelectrics.
Application on various types of soils
Diammophos is quite suitable for any type of soil. In arid regions, the drug is applied deeper, and in areas with heavy and frequent rains, it is scattered over the surface. The greatest effect from the use of the drug is observed on lands rich in nitrogen: peatlands, fallow or old arable.
Light soils and fallow fields during irrigation
In this case, Diammofos is used only after a competent and clear dosage calculation. If the application amount is exceeded, a loss of nitrate nitrogen will occur. In some cases this loss reaches 20%.
Ammonium hydrogen phosphate is added to the soil to enrich it with useful elements. This is especially true in the spring before the main sowing work on the site. The drug is also used to feed plants in the active growth phase. It is one of the few chemicals whose use is allowed to be combined with irrigation.
Behavior in soil
Diammophos, getting into the soil, decomposes into ions. Disubstituted ammonium phosphate and Ammophos - for ammonium ions NH4+ and phosphoric acid: H2P.O.4-, HPO42- and PO43-.
Potassium compounds
The potassium compounds included in the active composition of the drug disintegrate in the soil into a positively charged potassium ion, sulfo group or phosphate ion. It all depends on the compound used to add K.
Ammonium ion
It is known that this ion in soils of any type (with the exception of light soils, which have a low absorption capacity) is rapidly absorbed by the soil, losing its former mobility. In the off-season, this property allows you to retain nitrogen in the soil. After winter, in about 6 weeks, due to transformation during nitrification, nitrate nitrogen forms are formed.
Nitrates are completely absorbed by garden crops, as well as soil microflora. A small amount of nitrogen is lost by leaching.
Phosphoric acid ions
Capable of being absorbed by garden crops, but with varying degrees of efficiency. So, H2P.O.4 is able to be absorbed more easily and more quickly than others, HPO42- is much narrower, and PO43- is not absorbed by plants at all.
All ions not absorbed by crops form stable soil compounds over time. This happens either through exchange absorption or by chemical binding. Phosphorus of the exchange type is more accessible to garden crops.
Potassium compounds
They are characterized by low mobility along the soil profile (exceptions to the rules are sandstones and sandstones).
The potassium ion exhibits an extreme degree of activity, coming into contact with the PPC through two main types of absorption at once.
Exchange absorption
This process involves potassium. It is reversible, insignificant, and not susceptible to leaching from the arable layer. Therefore, it is more accessible for absorption by plants.
The reverse process favors the displacement of K from the PPC; this is also facilitated by the secretions of rhizomes of garden crops. This will lead to acidification of the soil solution, which is especially important for acidic soil, where aluminum and hydrogen are not observed in the composition of the PPC.
If used for potassium-loving plants for a long time, the soil will become slightly acidified.
Non-exchangeable potassium
Almost devoid of mobility, unable to be absorbed by plants. This potassium is fixed in clay-containing soil minerals. The fixation level reaches 82% and is directly dependent on the size of the feeding particles.
Thus, coarse-crystalline forms, as well as granules, have less contact with the soil, and therefore reduce the level of potassium fixation.
Application on various types of soils
When using Diammophos on your site, do not forget about the soil type and fertility level. The drug contains more phosphorus than nitrogen. On soils deficient in the latter macronutrient, it should be used only in combination with other fertilizers. For example, with organics.
In general, Diammophos is considered a universal mineral fertilizer that can improve the quality of almost any type of soil.
Application rates of diammophos per 1 m2
When using the drug, follow the dosages indicated on the package.
Application rates are usually universal for all types of soil:
- In the spring, before digging the area - 25 g per square meter. m.
- For fruit trees over 2 years old, 20 g is enough. Fertilizer is usually sprinkled around the trunk, slightly embedding the granules into the soil and pouring thoroughly.
- When planting strawberries, apply up to 7 g of fertilizer per meter of bed.
- For potatoes - 8 g per square meter. m.
- For greenhouse plants - 35 g per square meter. m.
In the absence of precipitation, the area sprinkled with Diammophos must be watered abundantly.
What to do in case of overdose
Diammophosphate allows plants to grow rapidly, bloom amicably and bear fruit abundantly. However, use it in moderation.
An overdose of the drug negatively affects the taste of garden crops, changes their color to an atypical one, and negatively affects the volume and duration of storage of the crop.
If Diammophos is applied excessively, planting vegetable and fruit crops is not recommended. It is better to let the soil rest for 1–2 years. Some gardeners use this time to plant green manure and comprehensively improve the soil.
Methods of application
Gardeners usually apply the drug in different ways. Among the main methods are the following:
- Root feeding. Diammophos is pre-diluted in water and the plants are fertilized with this composition.
- Before digging by scattering it around the area. This method of fertilizing is one of the most common due to its simplicity and effectiveness.
- Foliar application. Some garden crops prefer summer foliar feeding along with traditional root feeding. Knowing this trick, gardeners manage to get a bountiful harvest.
Diammophos is applied during all periods of the plant growing season. In addition, this substance is successfully used for closed soil.
Rules of use for different crops
The use of ammonium hydrogen phosphate has its own subtleties and nuances that must be taken into account when growing each specific crop.
Rice
Diammophos is actively used when growing this moisture-loving crop. The drug is resistant to leaching, and therefore copes well with its main task - nourishing the plant with the necessary beneficial components.
In addition, it allows rice to gain strength, acquire rich green mass, and increase productivity. The drug prevents the accumulation of nitrates. Rice grown on Diammofos is absolutely safe for health.
Grape
This plant is distinguished by its fastidiousness and sensitivity not only to growing conditions, but also to nutrition. However, Diammophos is perfect for grapes, because the crop loves phosphorus.But not every analogue contains so much of this macroelement.
If you combine the drug with organic fertilizers, the grapes will grow better, bear fruit and respond more easily to changing weather conditions. The application rate is indicated on the packaging; it is often determined by the age of the crop.
Potato
It is known that Diammofos is universal, however, some root vegetables especially love it. This applies to potatoes, which begin to sprout, confidently grow and bear fruit. Its structure and taste improves, shelf life increases.
Diammonium phosphate is usually added to the soil in the spring before plowing. Dosage - 25 kg per hundred square meters. Some gardeners pour fertilizer into the holes (6 g each) immediately upon planting.
Another way to fertilize potatoes is to sprinkle the area plowed under potatoes immediately before planting. The powder is incorporated into the soil during harrowing. Consumption of the drug - 20 g per square meter. m.
Cabbage
It is known that cruciferous plants do not tolerate chlorine. The latter is often included in potassium supplements. Diammophos, in this regard, is one of the most successful fertilizers for cabbage. It promotes rapid tying of forks, protects against pests and diseases through a positive effect on the immunity of the vegetable crop:
- in the spring, when digging up an area, it is recommended to apply up to 35 g of fertilizer per square meter. m;
- directly into the holes when planting - 4 g per root;
- when cultivating an area for planting cabbage in autumn - 40 g per square meter. m.
Tomatoes
Tomatoes are grown almost everywhere in Russia. They are planted both in greenhouses and in open ground. For tomatoes, complete nutrition with minerals is important, since the plant spends a lot of strength and energy not only on growth, but also on the ovaries.The use of Diammophos has an excellent effect on the yield of tomatoes. Thus, nitrogen nourishes and promotes rapid growth, potassium improves the structure of fruits and their taste, phosphorus promotes the development of a powerful root system responsible for the delivery of nutrients.
Application dosages:
- in the spring before digging an open area - 25 g per square meter. m, closed (greenhouses) - 55 g per sq. m;
- directly into the holes when planting: 4 g per meter (open ground), 6 g per meter (indoor ground).
Strawberry
This plant has a great need for minerals, through which it is possible to obtain a large and rich harvest.
Diammophos is a successful fertilizer for strawberries, due to the presence of the main macro- and microelements necessary for the crop for normal growth and fruiting. In addition, the drug prevents the accumulation of harmful substances in berries, which is extremely important for health.
Fertilizer is used in diluted form and by scattering (application rate - up to 20 g per sq. m).
Lawn
The green carpet requires constant mineral nutrition to build up a succulent mass. Especially after the winter period and seasonal haircuts. Feed in several stages.
In the spring, it is preferable to sprinkle saltpeter (3500 g per hundred square meters) followed by watering; in the summer, use Diammophos (4000 g per hundred square meters).
In autumn it is better to use diammonium phosphate, but in a smaller dosage (2500 g per hundred square meters). The drug will help the lawn prepare for the dormant period and better withstand the winter cold.
Security measures
Care must be taken when working with chemical compounds. Diammophos is no exception. Causes allergic reactions upon contact with skin.Therefore, it is recommended to use protective equipment: gloves, bandages, raincoats (when spraying the active substance with a sprayer).
Storage rules
Since Diammophos is soluble in water, it should be kept in a dry, well-ventilated place. The optimal temperature is up to +30 °C; direct sunlight is extremely undesirable. The drug is non-toxic, does not ignite when heated and does not explode. That’s why many gardeners leave it in the house for the winter.
Disposal
After the expiration of the shelf life, it is better to dispose of Diammophos, since the drug loses its beneficial properties and becomes useless for application to the soil. It is prohibited to throw away chemical compounds in a regular trash bin. It is better to take it to special disposal points for such drugs.
Diammophos is considered a universal fertilizer, the use of which increases the productivity of garden crops and has a positive effect on their taste. Top dressing is used in large agricultural complexes and in compact garden plots. The drug quickly dissolves in moist soil and quickly reaches the plants. Can be used on any type of soil throughout the growing season.