Commercial Floriculture

Inorganic feeding

• With inorganic feeding the exact proportions of the different chemicals can be accurately ascertained and the plants feed according to their requirements.
• The essential elements are Nitrogen (N), Phosphorous (P), and Potassium (K).
• The NPK mixture fertilizer 2 % N, 0.2 % to 0.5% of P and K is mainly responsible for the control of flower and fruit development.
• Growth regulators like GA3 enhance flowering and also the yield of flowers when sprayed @ 1.5ppm/l once in 15 days before flowering. IBA @ 1ppm/l promotes the growth of new shoots.
• Orchids growing in nature do not need much of manuring but those grown in the orchidariums need spraying in the liquid forms.
• Fertilizer doses should be dilute. The plants will burn by over fertilizer which can be seen as burnt leaf tips. One of the liquid spray’s which gives healthy growth is the Ohio spray.

Composition of Ohio solution made up for 1 gallon / 4.5 lt. of water.
* Potassium nitrate 2.63g
* Ammonium sulphate 0.44g
* Magnesium sulphate 2.04g
* Monocalcium phosphate 1.00g
* Calcium sulphate 4.86g
* Iron sulphate 0.50g
* Manganese sulphate 0.25ml.
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