Technical Documentation
Properties

The introduction of the PRO-SIARKA 800 SC fertilizer into the soil (the sulphur is absorbed primarily from the soil solution) ensures an adequate supply of this element at all stages of development - the plants absorb sulphur gradually until the end of the growing season, also in the maturation phase (rape) .
The fertilizer is applied in the form of medium or fine spraying with the use of sprayers used in crop protection. The fertilizer can be used in physical mixtures with other liquid fertilizers, including with the RSM fertilizer.

The positive yield-enhancing effects of the fertilizer sulphur are manifested by:

  1. Direct increase in yields – as a result of the increased efficiency of the fertilizer and soil nitrogen.
     
  2. Increase of yield  quality:
    • increase in the fat content in the seeds of oil plants - which exhibit several times greater demand for sulphur than cereals,
    • increase in the protein content in plants; the sulphuric amino acids cysteine and methionine
    • increase in the gluten content improved baking quality of the flour,
    • increase in starch content of grain crops - sulphur extends the grain filling phase,
    • reduction in the total nitrogen content in the grain of malting barley,
    • increase in the starch content in potato tubers and sucrose content in the roots of sugar beets,
    • reduction in nitrate content in vegetables.
       
  3. Improvement in carbohydrate metabolism during the late fall and early spring, which indirectly causes an increase in the tolerance of the plants to abiotic stresses (high and low temperatures, drought).
     
  4. Increase in the synthesis of mechanical tissues, the sulphur stimulates the synthesis of lignins (methionine) and as a consequence an increase in the resistance to abiotic stresses - lodging and biotic stresses - infection by diseases and pests.
     
  5.  Diseases controlled at least partially by sulphur:
    • Potatoes – Potato scab and potato rhizoctionia
    • Rape – Cylindrosporium concentricum of  rapeseed leaves,
    • Cereals – powdery mildew.
       
  6. Improvement in taste and aromatic qualities of the  allium vegetables:
    onion, garlic; the sulphur increases the content of essential oils (Cycloalliin - onion and horseradish, Allicin - garlic).

     

Purpose

The PRO-SIARKA S 800 SC fertilizer is made of finely fragmented (micronized) elemental sulphur, which enables its effective utilization (even above 75%) by the crops, especially sulfophilic plants, such as rapeseed and sugar beets. Beneficial yield-enhancing effects are also obtained after the application of the fertilizer on cereals and corn. The fertilizer can also be used on permanent grasslands as well as orchards and all vegetable crops.

Doses

Dosages and timing of fertilizer application

  Does of
the fertilizer
l/ha
Recommended
amount of water
l/ha
Fertilizer Plant development
stage according
to the BBA scale
winter rape 5 300 - 500 In the fall after the crop emergence 10 - 29
8 300 - 500 early spring 30 - 50
6 300 - 500 before flowering 50 - 57
barley, wheat, rye 5 300 - 500 after the emergence untill the beginning
of tillering
10 - 19 1)
Malting barley, triticale 5 300 - 500 end of tillering shooting 23 - 30 1)
oat 5 300 - 500 until the end of the heading phase 32 - 59 1)
corn for grain and silage 10 700 - 1000 fully developed 2-6 leaves 19 - 24
potatoe 5 300 - 500 several times, starting from
the leaf development phase
to the end of flowering
21 - 70
sugar beat 5 300 - 500 in the leaf development phase 20 - 26
5 300 - 500 3-4 weeks after row closure 31 - 33
field pea, pea 5 300 - 500 in the period of 1 to 4 fully
development leaves
11 - 19
lupine, sunflower 5 300 - 500 until the flowering phase 30 - 59
użytki zielone 20 3000 - 4000 before the beginning of growing season -
hops 5 800 - 1000 after starting the hops on strings -
5 1500 - 2000 after the hops reach the height
of the trellis
-
5 2500 - 3000 during the flowering phase and later -

1) according to Zadoks scale