Potato and Tuber Crops

Manures and Fertilizers

• Apply 5 tonnes of farmyard manure/ha at the time of preparation of 50% of N, full P and K to be applied as basal dose.
• Remaining 50% of N is applied one month after along with weeding and earthing up.
1. Excess N2 leads excessive vegetative growth at the cost of tuber development. Potassium: Promotes tuber growth through accelerated translocation of photosynthates Potassium also can be applied in split doses.

Biofertilizers like Azatobacter and Azospirillum can be applied to reduce the N2 fertilizer doses

Azospirillum 2kg/ha vine dipping + 10 kg/ha soil application reduced application of nitrogen up to 2/3rd of RD.

Liming (2000kg CaO/ha) helped in neutralizing soil acidity and increased yield and quality.

Supplementary irrigation when IW/CPE =1, there was 75% increase in tuber yield over un irrigated plants.

Rice straw mulching increased tuber yield by 23% under rainfed cultivation.

Earthing up at 15 or 30 days after planting can increase yield

In AP SP- Maize - Vegetables (Common crop rotation in practices)