G. Pratibha et al., EFFECT OF TILLAGE-INDUCED PHYSICAL EDAPHIC PROPERTIES IN RELATION TO CROPS AFTER PUDDLED RICE (ORYZA-SATIVA), Indian Journal of Agricultural Sciences, 68(2), 1998, pp. 62-65
A field experiment was conducted on a sandy soil to study the effect o
f tillage methods and irrigated crops on physical properties of soil a
fter wet-season puddled rice (Oryza sativa L.) during 1990 and 1991. T
he upland crops grown in sequence with rice were blackgram (Phaseolus
mungo L.), groundnut (Arachis hypogaea L.), castor (Ricinus communius
L.) and sunflower (Helianthus annuus L.), Land preparation with tracto
r-drawn mouldboard plough once followed by rotovator twice, and plough
ing once with tractor-drawn mouldboard plough + disc harrowing recorde
d lower bulk density (1.31,1.33 g/cc), higher porosity, infiltration r
ate and hydraulic conductivity (7.3 cm/hr). Groundnut recorded lower b
ulk density, higher hydraulic conductivity and infiltration rate compa
red with other crops.