NUTRIENT-USE PATTERN AND BALANCE-SHEET OF MAJOR NUTRIENTS UNDER SUMMER GROUNDNUT (ARACHIS HYPOGAEA)-RAINY-SEASON PEARLMILLET (PENNISETUM-GLAUCUM) CROP SEQUENCE IN MIDDLE GUJARAT
Td. Patel et al., NUTRIENT-USE PATTERN AND BALANCE-SHEET OF MAJOR NUTRIENTS UNDER SUMMER GROUNDNUT (ARACHIS HYPOGAEA)-RAINY-SEASON PEARLMILLET (PENNISETUM-GLAUCUM) CROP SEQUENCE IN MIDDLE GUJARAT, Indian Journal of Agronomy, 39(4), 1994, pp. 532-538
An experiment was conducted during rainy season of 1987 and 1988 to st
udy the nutrient-uptake pattern and change in the soil fertility statu
s under summer groundnut (Arachis hypogaea L.)-rainy-season pearlmille
t [Penniserum glaucum (L.) R. Br. emend. Stuntz] crop sequence. Nitrog
en had direct as well as residual effect on NPK uptake by both the cro
ps. Direct effect of P application was noticed for NPK uptake by both
the crops, whereas its residual effect was found significant only for
P uptake by pearlmillet. The total N showed positive balance at high-f
ertility level, whereas available P and K showed negative balance in t
he soil after 2-year cycle. Both the crops responded well to N and P.
The residual effect of N was observed in pearlmillet crop.