Vol. 10, Issue 11 (2021)

Author(s):
Ragniee Rai, Raj Kumar, Devesh Pathak and Krishna Kumar Patel

Abstract:
The present investigation untilled “Effect of zinc and boron on growth and yield of potato” was carried out during rabi, Season of 2019-20 at Main Experiment Station, Vegetable Farm of Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya (UP). The experiment was laid out in Randomized Block Design with the replications. There were seven treatment viz T₁-control (RDF) NPK @ 150:100:120 kg/Ha T₂- T₁ +25 kg Zn soil /ha T₃- T₁ +5 kg Borax/ha, T₄- T₁ + 25 kg Zn SO₄+5 kg Borax/ha. T₅-T₁+spray zinc (0.5%), T₆-T₁+ spray borax (0.5%), T₇-T₁ +spray zinc sulphate + borax @ 0.5%. The soil of the experimental field was silt loam in texture, having low organic carbon (0.35%) available N (145.5 kg/ha), P (15.7 kg/ha), K (255.0 kg/ha) and Zn (0.43 ppm), B (0.10 ppm). The potato variety _Kufri neelkanth_ was sown on 11 November more in row spacing 60x20 cm away tuber seed rate @ 25 Kg/ha. Nitrogen, phosphorous, potassium, zinc sulphate and borax were applied as per treatment. All the growth character yield and nutrient uptake (Zn and B) were found significantly superior in T₄ treatment (where zinc sulphate and borax @ 25 and 5 kg/ha) over control (without zinc sulphate and borax). Maximum potato tuber yield (36.5 t/ha) and haulm yield (62.09 t/ha), zinc uptake (565.7gm/ha), Boron uptake (620 gm/ha) and BC: ratio (3.44) was observed under T₄ treatment. On the basis of result it may be concluded that application of N, P, K, zinc sulphate and Borax @ 150:100:120:25:5 kg/ha was found most suitable dose and combination for increasing yield, yield attribute character nutrients availability and uptake (Zn and Boron), soil health and net return.