Abstract:
A field experiment was laid out in RBD
with three replication and seven treatments using
soluble and insoluble sources of phosphorus at different
combinations and lime in groundnut–groundnut
cropping system during 2013-14 and 2014-15 to
study their effect on the productivity, protein and oil
content and nutrient use efficiencies ; 100% P (SSP) +
Lime @ 0.2 LR produced the highest pod yield (26.5 q
ha-1) followed by RP : SSP (1 : 1) (25.7 q ha-1) But
these were at par. The Agronomic Efficiency of P
followed the same order. The Apparent P recovery
was highest in 100% P (SSP) + Lime @ 0.2 LR. The
highest oil content and protein content in kernel were
recorded in 100% P (SSP) + Lime @ 0.2 LR. It also
recorded highest S uptake followed by RP SSP 1)The later produced highest agronomic efficiency
of S. Physiological Efficiency of S was the same in
100% P (SSP) + Lime @ 0.2 LR. The later recorded
highest % increase in total K uptake (94.5%). The
Agronomic Efficiency in terms of Ca and Apparent
Ca recovery was highest in application of RP : SSP
(1 : 1)
