Cotton Sustained is a balanced fertiliser blend that reflects the nutrient removal ratios of high yielding cotton crops, particularly for phosphorus and potassium.
The Cotton Sustained blend contains 6% nitrogen, 12% phosphorus, 23% potassium, 2% sulphur and 0.55% zinc.
Cotton Sustained can be very useful at higher application rates in cotton country that has tested low in potassium, marginal in phosphorus and low in zinc. Other blend rations are available to match your soil and crop requirements.
Early applications of potassium are useful for cotton, which can take up excess amounts of potassium during periods of lower plant demand and release it later as demand from developing bolls increases.
Peak requirements of potassium can be as much as 4 kg/ha of potassium per day in a high yielding cotton crop , so foliar potassium applications may be required if the soil cannot supply enough to the plant from early squaring right out to the peak of boll filling.
