Solubor® DF

Characteristics

Solubor® DF is a high-purity, single-nutrient fertiliser containing 17.5% boron (B). It takes the form of non-hygroscopic, dust-free, and freeflowing solid microgranules, all of which are uniform in size and shape. Following a rapid dissolution process, it can be applied through fertigation and hydroponics and is especially recommended for foliar application.

An adequate level of boron is essential for maintaining numerous boron enzymatic plant activities in arable and horticultural crops. These activities include synthesis, structuring and stabilization of cell walls, support of the structural, functional integrity and elasticity of cell membranes, and proper differentiation and development of apical meristems. Boron is also central in the metabolism of the auxin indoleacetic acid (IAA) and in the regulation of the mitosis process during cell division through production of nucleic acids (DNA, RNA).

Appropriate treatments with Solubor® DF can prevent boron shortage in crops, especially in cereals, rapeseed, sugar beet, potato, brassica vegetables, legumes, and pome/stone fruits. It therefore prevents and corrects the serious physiological disorders which lead to heavy losses of yield quantity and reduced quality. The sparse internal transport of boron in many plants requires several spray applications of the product during the critical growth stages.

Solubor® DF
Market: Poland only
Packaging: 5, 12, 25 kg

Features

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EC fertiliser

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outstanding quality

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fast dissolution and complete solubility

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excellent miscibility

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preventive and corrective effect

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fast and efficient B uptake

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crystalline fertiliser

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increased yields and improved yield quality

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NutrientsSymbolContent
[% w/w]
Form
BoronB17.5soluble in water

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CropsNumber of applications per seasonCrop phenological stageBBCH stageProduct application rate
[kg/ha]
Spray solution application rate
[l/ha]
Arable crops
Wheat s/w*1first node to flag leaf31-39
0.3
200-300
Rapeseed3-44-8 leaves14-181.5
beginning of stem elongation30-311.5
3 to 8 visibly extended internodes33-381.5
green bud51-531
Maize24-6 leaves14-160.5
6-8 leaves16-180.5-1
Potatoes3inter-row closure31-39 1
tuber formation40-491
fruit development70-731
Sugar beets24-6 leaves14-162
inter-rows closure32-392
Soybean1development of side shoots and the main shoot21-49 1
Legumes2stem elongation30-39 1.5
pod and seed development70-791
Vegetable crops
Bulb vegetables
e.g. onion, leek
1-2
leaf development16-190.5300-500
development of harvestable vegetative plant parts41-450.5
Cucurbits
e.g. pumpkin, zucchini, cucumber
3leaf development16-190.5
formation of side shoots, inflorescence emergence21-591
flowering, fruit development61-790.5
Brassica plants
e.g. cabbage, cauliflower, broccoli
2-3leaf devlopment14-190.5
rosette growth31-391
development of harvestable vegetative plant parts41-490.5-1
Root vegetables
e.g. carrot, celery, beet
2-5leaf devlopment14-160.5
leaf devlopment17-190.5-1
development of harvestable vegetative plant parts41-421
development of harvestable vegetative plant parts43-450.5-1
development of harvestable vegetative plant parts46-490.5-1
Leaf vegetables1development of harvestable vegetative plant parts41-450.5
Solanaceous
e.g. tomato, pepper, early potato
3-4leaf development, formation and growth of side shoots, tuber formation13-491
inflorescence emergence and flowering51-691
fruit development71-790.5-1
ripening of fruit and seeds81-890.5
Legumes
e.g. bean, pea
3leaf development16-190.5-1
development of side shoots and the main shoot21-391
inflorescence emergence and flowering51-691
Orchard crops
Stone-fruit trees
e.g. sour cherry, sweet cherry
4bud burst531-2
500-800
white bud57-591-2
flowering60-691-2
before leaf fall921-2
Pome trees
e.g. apple, pear
4bud burst53-541-2
pink bud571-2
flowering61-651-2
after fruit harvest91-921-2
Soft fruits
e.g. strawberry, blueberry
3beginning of vegetation10-131-2
300-500
before flowering55-591-2
flowering60-691-2
before dormancy91-931-2

*s/w – spring/winter