On Farm Testing on Foliar Application of Nutrients and Growth Regulators in Pigeonpea (Cajanus cajan L.)

Abstract

Background: Onfarm Testings were conducted to asses effect of TNAU Pulse wonder in pigeonpea variety LRG-52 in ten farmer’s holdings of kurnool district during kharif from 2018-19 to 2020-21. Methods: The experiment consisted of 7 technology options (treatments). T1: consisting recommended dose of fertilizers along with spraying of pulse wonder @ 5 kg ha-1 during flowering and 15 days after 1st spray, T2: 75% RDF + Pulse wonder @ 5 kg ha-1 at flowering, T3: 50% RDF + Pulse wonder 5 kg ha-1 at flowering,T4: 100% RDF+ 2% DAP at flowering and pod formation stage T5: 100% RDF alone (20:50: 0 NPK kg ha-1),T6: Farmers practice ( 30: 60: 10 NPK kg ha-1 ),T7: Control. Data was analyzed using least significant difference in R software. Result: The results revealed that the T1 recorded the highest plant height (130,129,127 cm at flowering stage in 2018-19, 2019-20 and 2020-21 respectively). The lowest flower shedding observed in T1 treatment while it was the highest under T6 in all the three years of the study. Pod yield was the highest in T1 (1889, 1870 and ,1873 kg ha-1 in 2018-19, 2019-2020 and 2020-21 respectively) and the lowest in T7. The average highest benefit cost ratio (4.0) was realized in T1 and lowest in farmers practice (T6). Seed yield was positively correlated with number of flowers plant -1 (r value 0.813, 0.762 and 0.735) and test weight (r value 0.795,0.8 and 0.754) and negatively correlated with flower shedding ( r value -0.788,-0.712 and -0.750) in 2018-19, 2019-20 and 2020-21 years respectively. The final yield of crop is the cumulative effects of growth and yield attributes which manipulate the favorable parameters for higher yields.