Judicious administering of fertiliser is a necessary practice in cardamom plantation. Unplanned and unsystematic application of fertilisers can be very detrimental to the productive yield of cardamom. It is imperative to plan a schedule for fertiliser application for satisfactory output, to avoid wastage, and also to minimise the cost of cultivation. However, in the entire process of fertilisation, organic manure is an indispensable component for cardamom production.
Application of Organic Manures
Organic manure derived from animal or vegetable matter is regarded as beneficial for improving the soil content and adds to its nutrition value. Neem cake ─ a kind of organic manure (at the rate of 1 kg per plant) is considered helpful for cardamom cultivation. Amongst other organic manures, poultry manure or farm manure or cow dung compost at the rate of 5 kg, may be applied once a year. The manures should be thoroughly blended with the top soil after applying. The next application in the month of September may not be an organic manure. Chemical fertilisers should be avoided in valleys and highly fertile lands and organic compost may be administered in the months of May/June along with alternate spraying of NPK Fertilisers.