Sowing, Nursery and Transplanting
The time and season of sowing depends largely on agro climatic conditions and cultivation regions. There are three sowing season in North India which is June – July for autumn crops, November for spring and April for the summer crop. Although brinjal can be grown all year round in South India but main sowing can be done during July to August. In hills, seeds are sown in March or April. In order to avoid any problem related to water logging, brinjal seeds are sown in raised nursery beds and the seedlings are transplanted in the field. Generally, raised beds of size 7.2 × 1.2 m and 10 -15 cm in height is prepared and approximately a distance of 70 cm is kept between two beds for better cultivation operations. Rotten farmyard can be mixed with each bed for better growth and also small quantity of super phosphate may also be used. The beds can be drenched with 15-20g/10 L of water of Bavistin to prevent fungal diseases.
The seed rate can vary according to the type of seed, where pure line varieties required is almost 500 – 750 g/ha and hybrid requirement is 250 g/ha. The seed rate also depends on the type of sowing and the requirement per hectare may range from 140 to 200 g for seed trays, 500g for seedbeds and up to 3kg in case of direct seed sowing.
Seed Treatment and Sowing
It is a routine part to treat the seeds properly before sowing them in order to prevent any future contamination and infection. Some of the various ways by which the seeds can be treated are given below.