as Phosphate---- 15% w/v
AUSTRALIA W/V %
INTERNATIONAL W/W %
Apart from nitrogen, potassium and phosphorous are the two most mobile major nutrients essential for crop production. These nutrients influence virtually all the biochemical processes and developmental phases of plants. Potassium helps in regulation of water balance while phosphorous keeps the metabolic machinery functional in plants. Pick 15-42 contains the most recognisable forms of potassium and phosphorous ions for efficient uptake, distribution, growth and productivity
Advantages of PICK 15-42
Near neutral formulation for optimum nutrients availability
High analysis liquid formulation
Improved flowering, fruiting, boll formation and tuber fill
Prevents premature senescence in cotton, potatoes and other horticultural crops
Prevents excessive nitrogen induced leggy growth in vines
Excellent source of plant assimilable forms of potassium and phosphorous
Can be applied as foliar spray or as fertigation through the drippers
Quickly eliminates deficiencies of potassium in later stages of growth
Improves crop yield and quality.
PICK 15-42 Phosphorous
Phosphorous provides the energy to cells to multiply and grow. Phosphorous impoverished plants exhibit characteristic deficiency symptoms including
purple (anthocyanin pigment) colouration of leaves and petioles
purple and weak stems
enhanced root growth at the cost of shoot development
increased root to shoot ratio
The ability of plants to acquire phosphate-P during deficiency conditions also increases due to the synthesis of phosphate transporters. These biomolecules also transport phosphite ions. Phosphite is rapidly absorbed and translocated within the plant. However, the uptake is pH dependent and subject to competition by phosphate ions. Phosphite in presence of a small quantity of phosphate will not be recognised by phosphate transporters. Despite having similar mobility, the phosphite is a non-metabolized form of phosphorous and plants cannot use this as the sole source of phosphorous. Phosphate can be assimilated into organic P compounds within minutes of uptake.
Potassium is a highly mobile nutrient and must be incorporated in any nutritional program. Traditionally, potassium is often ignored in the crop production system, as a result the growers are now experiencing potassium deficiency in their farm. Potassium must be applied early in the season for root uptake or through the foliage only at later stages of growth, as roots do not absorb potassium generally after flowering. Crops such as cotton and potatoes have high potassium requirements due to the substantial leaf area development. Potassium regulates the opening and closing of stomata, the site of gas exchange for photosynthesis and water loss through transpiration. Potassium is also a component of some enzymes actively participate in photosynthetic reactions. Foliar application of potassium especially during fruit development period promotes fruit size, aroma and carbohydrate synthesis. The deficiency symptoms of potassium include
Marginal and leaf tip necrosis due to the enhanced synthesis of polyamines
Poor quality fruit and fruit size
Late season blotchy chlorosis
Poorly developed root system
Plants wilt easily with imposition of marginal water stress
Pick 15-42 can be conveniently applied through the drippers at early stages of crops and through the leaves during the fruiting and later stages of growth to produce the best quality crop with higher yields.
Click label to view application rates.