Physiological studies on pea crop under sandy soil conditions

This work was conducted to study the effect of different organic manure sources as well as Fe, Mo and B application in different times and application method on pea plants under sandy soil conditions during the winter of 2000 – 2001 and 2001-2002 seasons. Application of 15 or 30m3 ChM/fed. as well as 10 m3 POC + 5 m3 ChM were the best treatment for increasing root system parameters, vegetative growth, dry weight photosynthetic pigments, minerals content and uptake, yield and seed quality. Spraying pea plants with Mo at 25 ppm was the favorable treatment to enhance root and foliage parameters, enzymes activity in leaves and also spraying with Mo at 25 or 50 ppm enhanced minerals content and uptake, yield and seed quality. Spraying pea plants at 20 , 30 and 40 days after sowing with Mo was the best treatment for increasing all the above mentioned parameters. The best treatment for increasing the above mentioned traits was spraying plants with Mo at a rate of 25 ppm three times (at 20 , 30 and 40 days after sowing). Application of Fe, Mo and B increased vegetative growth parameters, dry weight of plant, photosynthetic pigments, enzymes activity and yield but application of Fe and Mo were the best treatments to increase minerals content and uptake as well as spraying plants with Fe and B improved seed quality