Effect of Different Levels of Nitrogen and Potassium on Yield and Quality of Potato
Sumant Kumar
Department of Horticulture (Vegetable Science), NCOH, Noorsarai, Bihar, India.
A. P. Singh *
Department of Horticulture (Vegetable Science), NCOH, Noorsarai, Bihar, India.
S. S. Solankey
Department of Horticulture (Vegetable Science), NCOH, Noorsarai, Bihar, India.
Shiv Nath Das
Department of Agronomy, BRC, Islampur, Bihar, India.
Satish Kumar
Department of Horticulture (Vegetable Science), MBAC, Saharsa, Bihar, India.
Shiv Kumar Choudhary
Department of Statistics, Mathematics & Computer Application, VKSCOA, Dumraon, Bihar, India.
Anuradha Sinha
Krishi Vigyan Kendra, Aurangabad, Bihar, India.
Abhishek Kumar Ravi
Department of Horticulture (Vegetable Science), NCOH, Noorsarai, Bihar, India.
Divya Tiwari
Department of Horticulture (Fruit & Fruit Technology), NCOH, Noorsarai, Bihar, India.
M.D. Ojha
Bihar Agricultural University, Sabour, Bhagalpur, Bihar, India.
*Author to whom correspondence should be addressed.
Abstract
The research experiment was carried out at Nalanda College of Horticulture, Noorsarai during 2021-22 to find out the effect of different levels of nitrogen and potassium on the growth and yield of potatoes. Findings of research showed that among the individual nitrogen and potassium levels, N5 and K4 performed better in respect of, the number of tubers per plant (7.85 and 6.80), average tuber weight (62.28 g and 67.27 g), tuber weight per plant (656.71 g and 473.45 g), tuber yield (270.95 q/ha and 216.73 q/ha), the diameter of tuber (5.21 cm and 3.98 cm), vitamin C content in tuber (14.15 mg/100gm and 11.89 mg/100gm), fresh weight (63.68 and 109.79), dry weight (12.89 and 22.12), moisture content of fresh tuber (76.09 and 91.07). In the case of interaction effect of N×K, the treatment of N5×K4 pronounced significantly to the number of tubers per plant (11.44), single tuber weight (110.19 g), plant tuber weight (962.00 g), tuber yield (360 q/ha), diameter of tuber (8.10 cm), vitamin C content in tuber (18.50 mg/100 g), fresh weight (109.79 g), dry weight (22.12 g), moisture content of fresh tuber (91.07 g). Potato var. Kufri Lima yielded the maximum (360.76 q/ha) in the interaction of N5×K4 when applied with 160 kg/ha nitrogen and 120 kg/ha potassium.
Keywords: Potato, nitrogen, potassium, tuber yield, vitamin C