Ecology, Environment and Conservation Paper

IMPACT OF DIFFERENT FERTILITY LEVELS AND ORGANICNUTRIENT SOURCES ON PRODUCTIVITY, QUALITY ANDECONOMICS OF WHEAT (TRITICUM AESTIVUM L. EMEND.FIORI & PAOL)

Meenakshi Meena, Rekha Kharra, Bharat Lal Meena and Ashish Sharma

Abstract

A field study was carried out at the Agricultural Research Farm, Vivekanand Global University, Jaipur,Rajasthan during Rabi season of 2018-19 with the objective to find out the impact of different fertility levelsand organic nutrient sources on productivity, quality and economics of wheat. The field experiment waslaid out with three fertility levels (75%, 100% and 125% recommended dose of fertilizers) randomly allocatedto the main plots of split plot design and five treatments of organic sources (control, vermicompost @ 2.5 tha-1, vermicompost @ 2.5 t ha-1 + Azotobacter + PSB, farmyard manures @ 5 t ha-1 and farmyard manures @ 5t ha-1 + Azotobacter + PSB) assigning to sub-plots by replicating thrice. The experimental findings revealedthat, among the fertility levels, the application of 125% recommended dose of fertilizers (120:60:60 N: P: K)being at par with 100% recommended dose of fertilizers, recorded significantly maximum yields (grain,straw and biological yield, respectively 40.19, 58.27 and 98.46 q ha-1), nitrogen content and their uptake bygrain and protein content in grain of wheat over 75% recommended dose of fertilizers. The same treatmentalso recorded significantly maximum net returns ( 33698 ha-1) and B: C ratio (1.46) of wheat. Similarly, theapplication of farmyard manures @ 5 tha-1 + Azotobacter + PSB being at par with application of vermicompost@ 2.5 t ha-1 + Azotobacter + PSB, recorded significantly highest grain, straw and biological yield (42.13, 61.07and 94.85 q ha-1, respectively), nitrogen content and their uptake by grain and protein content in grain ofwheat as compared to other treatments. The results further stated that significantly maximum net returns(32384 ha-1) and B: C ratio (1.48) of wheat was obtained by application of farmyard manures @ 5 tha-1 +Azotobacter + PSB.