Department of Soil Science and Agricultural Chemistry, S.K.N. College of Agriculture, Jobner, Rajasthan 303329.
†Present address: Rajasthan College of Agri. Udaipur, 313001
Field experiments were conducted on loamy sand soil having true density, 2.6 Mg m−3, apparent density 1.48 Mg m−3, saturated hydraulic conductivity 10.20 cm hr−1 and basic infiltration rate 22.4 cm hr−1 during kharif seasons of 1999 and 2000. The treatments consisted of three levels of FYM (0, 5 and 10 t ha−1) and nutrient combinations i.e. control, S, S+Mo, S+Mo+Fe, S+Mo+Fe+Zn, S+Mo+Fe+Zn+Co as per recommended doses applied to soil taking cowpea cv. C-152 as the test crop using Rhizobium inoculant. Pooled results of grain and stover yields showed that application of 10 t FYM ha−1 along with sulphur, sodium-molybdate and ferrous-sulphate resulted in significant improvement. Uptake of major and micronutrients by cowpea at harvest were influenced positively with the use of mineral nutrients and FYM.
Organic manure, mineral nutrients, cowpea, Bradyrhizobium, Leghaemoglobin, infectrivity, chlorophyll
