Foliar Application

Foliar application is a technique of feeding plants by spraying liquid fertilizer or biostimulant directly to the foliage of growing plants. The absorption takes place through their stomata and also through their epidermis. This type of fertilizer and biostimulant application as a spray solution is also known as a foliar spray. This method is suitable and effective for application of several Hello Nature fertilizers and products with biostimulant action, like vegetal protein hydrolysates.  Foliar application is effective to supply minor nutrients like iron, copper, boron, zinc, molybdenum and manganese. Major nutrients such as nitrogen, phosphorus, potassium and calcium can also be applied by this method when there is no adequate availability in the soil or during critical growth stage periods, even if foliar application is not substitute for soil application, but only a supplement to it. In fact, supplying a plant’s major nutrient needs (nitrogen, phosphorus and potassium) is most effective and economical via soil application. Foliar feeding nowadays is widely used and accepted as an essential part of plant production due to the numerous benefits and rapid effectiveness.

Primarily, foliar feeding is intended to delay natural senescence processes shortly after the end of reproductive growth stages. Foliar feeding targets the growth stages where declining rates of photosynthesis and levelling off of root growth and nutrient absorption occur, in attempts to aid translocation of nutrients into seed, fruit, tuber or vegetative production. Secondarily, foliar feeding can be an effective management tool to favorably influence pre-reproductive growth stages by compensating for environmentally induced stresses of adverse growing conditions and/ or poor nutrient availability. It’s proven that on the average, farmers are able to harvest only 50% of the yield potential. The yield gap can be caused by biotic and abiotic stresses with a stronger negative impact of abiotic stresses. In fact, abiotic stresses like heat, cold, salt, drought and flooding caused from 65 to 75% of the yield gap, while biotic stress only 25 to 35%. Biostimulants are known to enhance the tolerance of plants and crops to abiotic stresses and allow to achieve a higher level of yield in situations where the environmental conditions are not optimal which will be always more common due to climate change and soil degradation all over the world. Hello Nature biostimulants act as plant priming agents, preventive applications trigger early stress response (priming effect) and protect the critical crop stages. Besides, application after the stress help the plant recovery. The best foliar feeding method depends on crop type, growth stage, nutrient deficiencies in the soil and to abiotic stresses that may occur. With the right foliar feeding fertilizer and biostimulant program developed, foliar feeding can: encourage leaf growth and photosynthetic development, increase yield and quality, enhance tolerance against abiotic stresses, prevent leaf chlorosis, nutrient deficiencies, stunted growth and physiological disorders.
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ADVANTAGES OF LEAF APPLICATION WITH HELLO NATURE PRODUCTS

  • Rapid utilization of applied nutrients and therefore rapid correction of observed deficiencies
  • Highly effective to compensate soil or environmentally induced nutrient deficiencies
  • Provide immobilized and unavailable nutrients in the soils, such as iron
  • Better plant nutrient absorption at early crop growth stages when plant roots are not well developed
  • Improve yield and quality
  • Prevent physiological disorders and increase tolerance against abiotic stress

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