Phosphorus is one of the main elements necessary for plant growth and development. It is essential for the structure and growth of the root system. Therefore, it is especially important to supply young (just planted or sown) plants with this nutrient at the start. A good choice will beMicrostar PZ phosphorus fertilizer , having many advantages and allowing for very precisephosphorus fertilizationof garden plants.
As a result of phosphorus deficiency, leaves become stiff, turn purple-red, and may fall over time
However, plants can have a serious problem with phosphorus uptake. Even in nutrient-rich soil, phosphorus may not be available. Why is this happening and what is the risk for plants?
The role of phosphorus in the plant:
1. Affects the structure and growth of the root system,
2. It is necessary in the process of photosynthesis,
3. Phosphorus is essential for abundant flowering and fruiting,
4. It is used in the energy processes taking place in the plant.
Signs of phosphorus deficiency
Plants lacking phosphorus grow slower, are weak and have stiff leaves. Larger leaves turn dark green at first, then purplish red (this may also apply to the stem). Later, the leaves fall off. The root of the plant develops poorly. Phosphorus deficiency also has consequences in the form of weaker flowering and yielding.
Problems with the availability of phosphorus in the soilPhosphorus can be problematic for gardeners. Even if there is a lot of it in the soil, it may be inaccessible to plants. Why is this happening?
Low efficiency of fertilizersPhosphorus is characterized by the fact that it easily precipitates into less soluble forms (due to fixation by mineral s alts). As a result, only a fraction of this element can be used by plants. As a result, in some soils, phosphorus fertilization is only 30-40% effective.
Plants that lack phosphorus grow slower and are weak. Phosphorus deficiency also has consequences in the form of weaker flowering and yielding
Temperature effectAnother factor that has a negative impact on phosphorus availability is low temperatures. They significantly limit the availability of phosphorus. Such a situation often occurs in early spring, which is very unfavorable for young plants - it limits the development of the root system. Temperature below 13 ° C reduces phosphorus availability by as much as 70%.
Low temperatures in early spring have a negative impact on phosphorus availability. It is very unfavorable for young plants - it limits the development of their root system
Effect of soil reaction
The pH of the soil also strongly influences the availability of phosphorus. This element becomes inaccessible to plants very quickly (much faster than nitrogen and potassium) as the pH drops. The optimal range is pH 6-7. Unfortunately, in Poland, a significant part of the soil is acidic.
Distribution of phosphorus in the soil
"A fourth reason why phosphorus may not be available to plants is because of its low mobility in soil. The roots of the plant are able to take nutrients not only from their immediate vicinity, but also to attract elements a little distant. The root is able to absorb nitrogen from a distance of up to 20 mm, magnesium and calcium from 5 mm. On the other hand, phosphorus is taken up to a maximum radius of 1-2 mm from the root! For this reason, fertilizer sown too far from the root will not be used efficiently.
Phosphorus is an element that moves poorly in the soil. Can only be taken within 1-2 mm from the root
How to get easily available phosphorus?
Phosphorus deficiency causes significant losses in agriculture and poses a serious economic problem. To solve it, a new technology has been developed that has proven successful in many crops for several years. It is effective not only in agriculture, but also in amateur cultivation of vegetable, fruit and ornamental plants.This new technology, called fine fertilization, consists in delivering easily available phosphorus directly under the root or in the vicinity of the plant seeds. A special fertilizer contains phosphorus in the most digestible form. However, precise application ensures that this nutrient is within the reach of the root. Phosphorus in this fertilizer is present in the form of organic compounds, thanks to which it is available to plants practically in 100% regardless of the soil pH.
Initial fertilization with microgranules allows for 5 times better supply of phosphorus to the plant than in the case of standard fertilizer
An example of such a fertilizer for precise fertilization with easily available phosphorus isPhosphoric fertilizer Microstar PZ , produced by the French company Agronutrition. Microstar PZ contains 10% nitrogen, 2% zinc, 10% sulfur and as much as 40% phosphorus. It is in the form of microgranules.
Precise fertilizationHow to apply Microstar PZ? One of its uses is to fertilize young plants while planting or sowing seeds. It can also be used during the growing season to stimulate flowering and fruiting.
Initial fertilization
Phosphorus is essential for the structure and growth of the root system. That is why it is especially important to supply young (just planted or sown) plants with this nutrient.
Dosage:
- Vegetables (onion, carrot, parsley, cucumber, red beets)
Use the fertilizer together with sowing seeds in the seed row at a dose of 3-4 g / m². It is best to sow the vegetable seeds first, and then fertilizer for the seeds. - Vegetables from seedlings- tomato, cabbage, cauliflower, broccoli, leekUse the fertilizer before planting the seedlings in the hole where the seedlings will be planted in a dose of 3 -4 g / m²
- Fruit and ornamental trees and shrubsBefore planting, apply the fertilizer in the hole in which the plants will be planted at a dose of 15 -40 g of fertilizer / seedling. Use higher doses of fertilizer when planting plants with a height of more than 1 m. In the following years of cultivation, the fertilizer is best applied very early in spring at a dose of 5-30 g / plant.
In the cultivation of flowering plantssuch as roses, hydrangeas, azaleas, rhododendrons, magnolias, forsythia, lavender, etc. andin the cultivation of fruit trees and shrubs(American blueberry, large-fruited cranberry, raspberry, strawberry, cherry, grapevine, apple, pear, cherry, cherry, plum, apricot, peach) Microstar PZ should be used for the second time at the beginning of flower bud production at a dose of 5-30 g / plant.Spread the fertilizer evenly within the radius of the plant crown.
In the cultivation of plants requiring an acidic substrate(azaleas, hydrangeas, rhododendrons, blueberries and cranberries) perform additional fertilization in full flowering dose 5-20g / plant.
How to check the effect of the starter fertilizer?If you want to see for yourself how this new method of phosphorus fertilization will affect the growth and plant he alth, you can carry out a comparative test yourself. It is enough to leave the control sample, i.e. the part of the plants that will not be fertilized with Microstar PZ. The effects should be visible quickly. They will depend not only on the dose of fertilizer, but also on the prevailing external conditions. "
