Manure and plant extracts for foliar nutrition in organic farming: A Review

Abstract

Indiscriminate use of inorganic fertilizers has bought threat to soil health in respect of physical, chemical and biological properties of soil. Therefore, it is necessary to minimize the usage of inorganic fertilizers by substituting with organics. It is well established fact that the improvement of quality and productivity of the crops could be made possible with combined application of organic manure and balanced chemical fertilizers. One of the techniques widely used for correcting imbalanced nutrition is through foliar spray of nutrients. The foliar spray of organics contribution is to be adjudicated in terms of quick supply of nutrients, plant hormones, stimulants, and other beneficial substances to the plants, which ultimately improves physiological and biochemical processes in plants and is more critical in the context of sustainable agriculture.