Size (length*width*height): 4cm x 7cm x 9cm

Manganese is a critical component to the health of any plant.
It is actually the presence of Manganese sulfate that makes some herbicides effective. Herbicides are formulated to starve plants of crucial nutrients until they die. One very well-known herbicide starves unwanted plants (weeds) of manganese and is very effective in killing plants that way.

Availability of Manganese is a very crucial factor in the health of any productive crop.
Manganese deficiency or "frizzletop" is a common problem in palms. Symptoms first begin to show on the
newly emerging fronds(leaves). The fronds will appear chlorotic (yellow), small, and weak looking. As the deficiency progresses,
fronds will emerge withered or scorched in appearance, dwarfed, and distorted. This is what gives "frizzletop" its name. If not
corrected, the palm will stop growing and only small brown stubs will emerge, this is quickly followed by death of the palm.
All palms can benefit from regular applications of SA-50 Manganese Sulfate. Some of the most susceptible palms
to manganese deficiency are Queen Palms, Royal Palms, Pygmy Date Palms, Paurotic(Everglade Palms), and Coconut.

APPLICATION RATES (Spread material under canopy of tree.)
Small Palms: use 1/2 to 1 pound per tree
Medium Palms: use 1 to 3 pounds per tree
Large Palms: use 3 to 6 pounds per tree
Large Shrubs and Trees: Use 1/4 to 1/2 pound per plant.
Landscapes: Use 1/3 to 2/3 cupfuls (1/4 to 1/2 lbs.) per 100 square feet.
(Manganese deficiency in plants may appear as yellowing of the leaf while the mid vein remains green).

The deficiency symptoms exhibited by the plant may be a sign that the pH of the soil is wrong. The desired pH so that
most elements are available to the plant is 6.0 to 6.5. Very few homeowners plant palms on native soil, mostly the elevation of
the home is made of fill-soil brought in during the construction of the home. This soil is essentially inorganic sand that
provides little nutrition to the plants and tends to be alkaline(high pH). This "ties up" many of the essential nutrients making
them unavailable to plants. Alkaline soils (high pH) can easily be fixed by the addition SA-50 Soil Acidifier to the soil (see label
for application rates).
Magnesium deficiency is also very common on palms. Symptoms occur first on the older leaves of the palm and
progress up through the canopy. This deficiency can be fixed by regular applications of SA-50 Magnesium Sulfate. Magnesium sulfate can be applied along with the manganese sulfate application as a preventative.