Onions require potassium at rates equal to nitrogen, but calcium is required at considerably higher rates. High nutrient availability is important during bulb-formation; in this phase a high K:N ratio is required. Pungency of flavor is enhanced by fertilizers containing S but diminished by N in ammonium form. system is shallow and fibrous, therefore, fertilizers should be applied 10–15 cm below the seed row. Optimum soil pH >6.0. Best onion mineral nutrition regime includes the use of CRFs and foliar feeding. In certain areas fertigation with fully-soluble fertilizers is also practiced.
Agroleaf Power Calcium
11-5-19+9CaO+2.5MgO+TE
Agroleaf Power Calcium prevents and corrects situations of calcium deficiencies. Instances like these are: excess evaporation and calcium sensitive crops such as lettuce, cabbage and fruits.
Agroleaf Power Magnesium
10-5-10+16MgO+32SO3+TE
Agroleaf Power Magnesium contains NPK, MgO and SO3. It cures and prevents magnesium deficiencies found in soils like: acidic, light and sand. It also increases photosynthesis and chlorophyll creation. It is great to use for crop recovery, stress relief and cell stretching.
Agroleaf Liquid Calcium+
8-0-0+13.8CaO
An innovative liquid fertilizer fortified with three technologies to boost absorption to help avoid Ca deficiences in fruit and vegetable crops.
Agrocote Agrocote Max 1-2M
44-0-0
E-Max Release Technology™ is a reacted polymer coating for use on macronutrients and micronutrients to improve nutrient efficiency and plant utilization. The release of nutrition is based upon moisture and temperature, offering predictable longevities, even under the warmest conditions.
Rise P Rise P
An innovative plant growth promoting rhizobacteria (PGPR) plus yeast fractions particularly focused on increasing phosphorus and metallic ions availability to plants.