The effect of foliar fertilizer is good, and how to apply it ...

Spraying foliar fertilizer is a commonly used fertilization method in agricultural production. It has the characteristics of fast absorption, low dosage and good effect, and is widely used by farmers.

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The following five situations need to spray foliar fertilizer

1. When the root system of the crop is aging and the absorption capacity is weakened, apply foliar fertilizer.

In the late growth period of annual crops, the root vitality declines and the fertilizer absorption capacity decreases. If you want to topdress the crops with fertilizer, the method of root application cannot meet the needs of the crops. At this time, it is suitable to use foliar spray fertilizer.

2. When crops have deficiencies, apply foliar fertilizers.

During the growth process of crops, when some nutrient elements are deficient, if soil fertilization is used, it will take a certain period of time for the nutrients to be absorbed by the crops, and the nutrient deficiency symptoms of the crops cannot be alleviated in time.

At this time, if foliar fertilization is used, the advantages of fast foliar fertilizer absorption can be fully utilized, so that nutrients can quickly enter the plant through the leaves and solve the problem of nutrient deficiency. For example, when vegetables are deficient in certain trace elements and the plants are short and the leaves turn yellow and lose green, if you spray foliar fertilizer on the leaves at this time to supplement these trace elements, these symptoms of deficiency can be alleviated in time, which is better than topdressing fertilizers in the soil. The effect is good and the utilization rate is high.

3. When the growth of crops is affected by the adverse environment, foliar fertilizer should be applied.

When the soil environment is unfavorable to crop growth, such as too much water or drought, the soil is too acidic or too alkaline, which will hinder the absorption of nutrients by the roots of the crops, and the crops need to recover quickly. At this time, it is necessary to spray fertilizer on the leaves. In order to quickly supplement nutrients to meet the needs of crop growth and development.

4. Quickly supplement medium and trace elements, and use foliar fertilizer as much as possible.

Some fertilizers, such as phosphorus, iron, manganese, copper, zinc fertilizers, etc., if applied to roots, are easily fixed by soil colloidal adsorption, reducing the effect of use. The use of foliar spraying will not be limited by soil conditions, and has the advantages of less fertilizer, quick effect, high utilization rate, safety, and no pollution.

5. When soil fertilization is difficult to operate, apply foliar fertilizer.

For the crops covered by plastic film and the land without drip irrigation belt, it is difficult to use soil topdressing when the amount of base fertilizer is insufficient. At this time, it is necessary to use foliar spray fertilizer to supplement the needs of nutrients.

However, some deep-rooted crops have relatively little absorption of some nutrient elements. If traditional fertilization methods are used, it is difficult to apply to the absorption part of the root system, and the fertilizer effect cannot be fully exerted. However, foliar spraying can achieve better results. The use of foliar fertilization can make crops better absorb and utilize it, which not only saves the amount of fertilizer applied, but also reduces the pollution of soil and water sources. It is an effective fertilization technology that kills two birds with one stone.

The use of foliar fertilizers is prohibited in the following three periods

1. It is forbidden to use during the flowering period

Crops should not be sprayed with foliar fertilizer during the flowering period. The flowering period is the stage of pollination and fruit bearing. Fertilization during this period is easy to burn flowers, which is not conducive to normal pollination and reduces yield.

2. It is forbidden to use at high temperature in the afternoon

Foliar fertilizer is a highly efficient nutrient solution component. If it is sprayed on the foliage in high temperature weather, it will cause nutrient evaporation, and the rainy season will also reduce the nutrient concentration. Both of these will significantly reduce the utilization rate of foliar fertilizer.

3. It is forbidden to use when the seedlings are not slowing down

In the seedling stage of crops, most of the crops have just started to germinate, or spray foliar fertilizer after transplanting, because the crops themselves are not only fragile at this time, they are not so adaptable to the external conditions, and the general spraying of nutrient solution can easily lead to The phenomenon of burning seedlings and leaves is not conducive to the normal growth of seedlings.

When to use foliar fertilizer

The effect of foliar fertilization is directly related to temperature, humidity, wind, etc. For foliar spraying, it is best to choose a windless cloudy day or before 9:00 am when the humidity is high and the evaporation is small. After 4:00 p.m., if it rains 3 to 4 hours after spraying, respraying is required.

Introduction

In this technical report foliar NPK fertilizers are covered in depth and their uses, applications and benefits from its application in crops. It has been analyzed carefully and individually each of the major elements (Nitrogen, Phosphorus and Potassium), their function in the plants as well as their deficiency symptomatology.

Within this document is a summary of the vast quantity present in the FOLIARTAL range products. In this product line we find NPK with different proportions of NPK that suites the changing necessities of your crop, depending on the phenological state in which they are.

Foliar Fertilizers NPK: properties and benefits

FOLIARTAL fertilizers are liquid NPK fertilizers, fast absorbed by the plants.

They contain NPK in different concentrations depending on the traits of the plant you want to improve.

Also they contain Microelements to improve crops quality.

NITROGEN (N)

Nitrogen, together with Potassium, is the element that plants absorb the most.

It is an essential element used by the plants to produce amino acids and DNA, and are part of the chlorophyll molecule, key of the photosynthesis.

Nitrogen major roles are:

• Forming part of the amino acid structure, which constitutes proteins.
• Forming part of the chlorophyll molecule, key for photosynthesis and the green color of the plants.
• Being a structural element of the DNA.
• Increasing the quantity of sugars in the fruit.
• Stimulating the plant growth.

Nitrogen deficiency (N)

SYMPTOMS

• It first appears on the oldest leaves, normally the lower ones.
• Pale green turning to yellow leaves can be seen &#; CHLOROSIS.
• Red colors may be seen on the leaves underside.
• Short and slender stems.
• Plant growth is reduced or even stopped.
• Plant shows a yellow general aspect.

 

PHOSPHORUS (P)

Phosphorus is the main element of the energy molecules.

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It is an essential element used by the plants to produce ATP and NADPH.

It is an essential element used by the plants to produce ATP and NADPH.ATP, Adenosine Tri Phosphate, is the metabolic coin and almost every metabolic reaction is produced by the energy given by it.

As key part of the NADPH and ATP, Phosphorus roles involve, among others:

• Transport of nutrients and hormones.
• Root absorption of elements like Fe.
• Cell division and plant growth.
• Fruit formation and development.

Phosphorous deficiency

SYMPTOMS

• The plant turns dark green.
• Lower leaves with yellow colors, turning green as they dry.
• Less radicular development, blossoming and fruit set.
• Presence of purple colors on the leaves.
• Short and slender stems.
• Number of sprouts and fruit diminishes drastically.

 

POTASSIUM (K)

Potassium is the element that plants need in larger quantities.

Potassium role in the plant is to activate enzymes that have major roles on the metabolism.

Its activity is essential for the plant general development and growth.

This element activates and regulates enzymes and processes like photosynthesis, stomatic aperture, protein synthesis, nutrient and water transport, fruit fattening&#;

A stoma is a hole in the epidermis of the leaves, used by the plant to exchange gases with the atmosphere. It can be opened or closed depending of the temperature.

If the temperature is high, the water inside the plant
evaporates. If the temperature is low, the water doesn&#;t evaporate.

Having low K, the stomata would be always opened, leading the plant to a hydric crisis, terrible for its development.

Potassium roles involve:

• Activates many enzyme systems.
• Maintains turgor, reducing water loss.
• Reduces respiration, preventing energy losses.
• Enhances transportation of sugars and starch to the fruit.
• Produces fruit rich in starch, since starch synthase is activated by K.
• Strengths cell wall.
• Helps retard crop diseases.

Potassium deficiency (K)

SYMPTOMS

• Spotted chlorosis on the old leaves, later outspreaded to the younger ones.
• Black, necrotic areas are produced in nerves or in apex.
• Growth is delayed.
• Weakening of the stems.
• Low resistance to pathogens.
• Small fruits.

SUMMARY

FOLIARTAL products have different proportions of N &#; P- K to favor the specific requirements your crop needs.

FOLIARTAL products are recommended for all kinds of crops: Fruit trees, vegetables, extensive and ornamental crops.

Foliar NPK rich in Nitrogen.

Also contains Magnesium and Microelements for the crop.

Indicated to enhance the first stages of crops development.

Apply when the Nitrogen needs of your crop are high:

• Sprouting.
• Leaves and branches formation.
• Stress periods.

CROP FOLIAR APPLICATION cc/ 100L APPLICATIONS / FREQUENCY Fruit vegetables 150-300 cc/100 l 2-3 applications since transplant Leaf vegetables 150-300 cc/100 l 2-3 applications since transplant Fruit trees 200-350 cc/100 l 2-3 applications when sprouting, preblooming and petal fall Extensive & Ornamentals 150-300 cc/100 l 2-3 applications Fertirrigation &#; Apply 5-6 l/hectare per application

FOLIARTAL 17-7-6 + MICRO is compatible with most of the available fertilizers and phytosanitary products, even though it is advisable to perform a previous test.
Do not mix with mineral oils or alkaline reaction products.

FOLIARTAL 17-7-6 + MICRO Guaranteed Contents
Density: 1,27 gr/cc
pH (20ºC): 1,8

ELEMENT GUARANTEED CONTENTS Total Nitrogen (N) Ureic 14,0% w/w = 17,86% w/v Phosphoric Anhydride (P2O5) 6,0% w/w = 7,66% w/v Potassium Oxide (K2O) 5,0% w/w = 6,38% w/v Water-soluble Boron (B) 0,02% w/w = 0,025% w/v Water-soluble Cupper (Cu) 0,05% w/w = 0,063% w/v Water-soluble Iron (Fe) 0,1% w/w = 0,127 w/v Water-soluble Manganese (Mn) 0,06% w/w = 0,076% w/v Water-soluble Molybdenum (Mo) 0,002% w/w = 0,% w/v Water-soluble Zinc (Zn) 0,05% w/w = 0,063% w/v Chelating agent HEEDTA

Foliar NPK with high concentration of Phosphorus.

Also contains Microelements like Copper, Iron or Boron.

Enhances the fruit formation of your crop.

Apply when the Phosphorus needs of your crop are high:

• Pre blooming
• Blooming
• Fruit formation

High availability of Phosphorus will lead to an accelerated metabolism, and the fruit formation and setting will occur quicker.

CROP FOLIAR APPLICATION cc/ 100L APPLICATIONS / FREQUENCY Fruit vegetables 250-300 cc/100 l 2-3 applications since transplant Leaf vegetables 250-300 cc/100 l 2-3 applications since transplant Fruit trees 250-500 cc/100 l 2-3 applications when sprouting, pre-blooming and fruit formation Extensive & Ornamentals 200-300 cc/100 l 2-3 applications Fertirrigation &#; Apply 5-6 l/ha and application Invernadero 250-300 cc/100 L 2-3 aplicaciones desde el trasplante

FOLIARTAL 9-27-9 + MICRO is compatible with most of the available fertilizers and phytosanitary products, even though it is advisable to perform a previous test.
Do not mix with mineral oils or alkaline reaction products.

FOLIARTAL 9-27-9 + MICRO Guaranteed Contents
Density: 1,32 gr/cc
pH (20ºC): 6,5

ELEMENT GUARENTEDD CONTENTS Total Nitrogen (N) Ureic 7,0% w/w = 9,29% w/v Phosphoric Anhydride (P2O5) 21,0% w/w = 27,86% w/v Potassium Oxide (K2O) 7,0% w/w = 9,29% w/v Water-soluble Boron (B) 0,02% w/w = 0,03% w/v Water-soluble Cupper (Cu) 0,05% w/w = 0,06% w/v Water-soluble Iron (Fe) 0,05% w/w = 0,07% w/v Water-soluble Manganese (Mn) 0,05% w/w = 0,07% w/v Water-soluble Molybdenum (Mo) 0,% w/w = 0,% w/v Chelating agent HEEDTA

Foliar NPK rich in Potassium and Nitrogen.

Also contains Microelements like Copper, Iron or Boron.

Indicated to increase the quality of the fruit.

Apply when Nitrogen and Potassium needs are high:

• Vegetative growth
• Fruit fattening
• Hydric stress periods

CROP FOLIAR APPLICATION cc/ 100L APPLICATIONS / FREQUENCY Fruit vegetables 250-300 cc/100 L 2-3 applications when fattening and ripening Leaf vegetables 250-300 cc/100 L 2-3 applications when fattening and ripening Fruit trees 250-500 cc/100 L 2-3 applications when fruit formation, fattening and ripening Extensive & Ornamentals 200-300 cc/100 L 2-3 applications Fertirrigación &#; Apply 5-6 l/ha and application

FOLIARTAL 10-5-12 + MICRO is compatible with most of the available fertilizers and phytosanitary products, even though it is advisable to perform a previous test.
Do not mix with mineral oils or alkaline reaction products.

FOLIARTAL 10-5-12 + MICRO Guaranteed Contents
Density: 1,22 gr/cc
pH (20ºC): 1,9

ELEMENT GUARANTEED CONTENTS Total Nitrogen (N) Ureic 8,0% w/w = 9,76% w/v Phosphoric Anhydride (P2O5) 4,0% w/w = 4,88% w/v Potassium Oxide (K2O) 10,0% w/w = 12,20% w/v Water-soluble Boron (B) 0,02% w/w = 0,026% w/v Water-soluble Cupper (Cu) 0,05% w/w = 0,06% w/v Water-soluble Iron (Fe) 0,05% w/w = 0,06% w/v Water-soluble Manganese (Mn) 0,05% w/w = 0,06% w/v Water-soluble Molybdenum (Mo) 0,% w/w = 0,003% w/v Chelating agent HEEDTA

Foliar NPK with a balanced proportions of these three elements.

Also contains Microelements like Copper, Iron or Boron.

Can be used by foliar or root application.

Apply when all elements are required:

• General growth of the plant.
• Increasing of resistance to diseases.

CROP FOLIAR APPLICATION cc/ 100L APPLICATIONS / FREQUENCY Fruit vegetables 250-400 cc/100 l 2-3 applications from transplanting Leaf vegetables 250-400 cc/100 l 2-3 applications from transplanting Fruit trees 250-300 cc/100 l 2-3 applications when fruit formation, fattening and ripening Extensive & Ornamentals 150-300 cc/100 l 2-3 applications Fertirrigación &#; Apply 5-6 l/ha and application

FOLIARTAL 13-13-13 + MICRO is compatible with most of the available fertilizers and phytosanitary products, even though it is advisable to perform a previous test.
Do not mix with mineral oils or alkaline reaction products.

FOLIARTAL 13-13-13 + MICRO Guaranteed contents
Density: 1,22 gr/cc
pH (20ºC): 1,9

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ELEMENT GUARANTEDD CONTENTS Total Nitrogen (N) Ureic 10,2% w/w = 13,0% w/v Phosphoric Anhydride (P2O5) 10,2% w/w = 13,0% w/v Potassium Oxide (K2O) 10,2% w/w = 13,0% w/v Water-soluble Boron (B) 0,02% w/w = 0,026% w/v Water-soluble Cupper (Cu) 0,05% w/w = 0,066% w/v Water-soluble Iron (Fe) 0,05% w/w = 0,066% w/v Water-soluble Manganese (Mn) 0,05% w/w = 0,066% w/v Water-soluble Molybdenum (Mo) 0,002% w/w = 0,% w/v Water-soluble Zinc (Zn) 0,01% w/w = 0,013% w/v