Impact of fodder cutting management and splitting of nitrogen doses on growth and yield of fodder Oat (Avena sativa L.)

Abstract

A field experiment was conducted to study the effect of fodder cutting and splitting of nitrogen management on growth and yield of various varieties of fodder oat during Rabi 2019-2020. The experiment was carried out with three treatments consisting of (Main plot) three varieties (RO-19, JHO-851, UPO-212) and (Sub plot) four fodder cutting and splitting of nitrogen viz. (T1 ) two cuttings (55 DAS & 50% flowering) with 60% N as basal + 40% N at Ist cut, (T2 ) Two cuttings (55 DAS & 50% flowering) with 50% N as basal + 50% N at I st cut, (T3 ) Three cuttings (55 DAS, 35 days after 1st cut & 50% flowering) with 50% N as basal+ 25% N at Ist cut + 25% N at IInd cut and (T4 ) Three cuttings (55 DAS, 35 days after 1st cut & 50% flowering) with 40% N as basal + 30% N at Ist cut + 30% N at IInd cut were laid out in split plot design with three replications. As per the results the values of RO-19 obtained the highest Initial plant population and Plant height (cm) as compared to JHO-851 and UPO-212, while JHO-851, Number shoots (m-1), Number leaves (m-1), Leaves : Stem ratio (Plant-1) and Green fodder yield (q ha-1) as compared to RO-19 and UPO-212. As regarded to cutting and splitting of nitrogen management on Initial plant population, Plant height (cm), Number leaves (m-1), Leaves : Stem ratio (Plant-1), Green fodder yield (q ha-1) and Total green fodder yield (q ha-1) were found maximum under Two cuttings (55 DAS & 50% flowering) + 50% N as basal + 50% N at Ist cut, while Number shoots (m-1) were found maximum under Two cuttings (55 DAS & 50% flowering) + 60% N as basal + 40% N at Ist cut respectively.