Abstract
Pigeon pea [Cajanus cajan (L.) Millsp.] is the rich sources of dietary protein, carbohydrate & certain minerals but its poor yield needs to formulate a nutrient management practices for higher productivity in upland alfisols of Tripura and to combat it, an experiment was conducted during three consecutive kharif seasons at College of Agriculture, Lembucherra, Tripura comprising of two levels of Lime (150 and 200 kg ha-1) in main plot and two levels of molybdenum seed treatment (0 and 4g kg-1 of seed) in sub plot and 4 levels of recommended doses, viz., 0% of RDF ha-1, 50% of RDF ha-1, 75% of RDF ha-1 and 100% of RDF ha-1 (Recommended dose @ 20:60:40 of NPK). It was revealed that by the use of 100% RDF ha-1 with 150 kg ha-1 lime and 4g kg-1 of molybdenum seed treatment leads to higher yield and return per rupee respectively. But by the use of 100% RDF ha-1 with 200 kg ha-1 lime and 4g kg-1 of molybdenum seed treatment, return per rupee was recorded at 2.98. The investigation reflects that by the use of 75% RDF ha-1 return per rupee (3.78) was less compared to 100% RDF ha-1 but significant with saving the cost of 25% RDF ha-1 and soil health from the excessive use of fertilizer for sustaining the agricultural growth.SAARC J. Agri., 13(1): 123-134 (2015)
Highlights
Pigeonpea [Cajanus cajan (L.) Millsp.] is the most versatile food legume with diversified uses as food, feed, fodder and fuel
The pooled data of three years showed that the plant height at harvest was 125.71 cm in case of liming @ 150 kg ha-1 whereas 124.86 cm in case of liming @ 200 kg ha-1, respectively (Table-2 and 3) which might be due to the reduced toxicity effect of aluminum and manganese after the application of lime whereas higher application leads to soil deficient in iron, copper and zinc with reduced availability of phosphorus and potassium
The findings revealed that the application of molybdenum @ 4g kg-1of seed as micronutrient was highly significant as compare to M0 treatments
Summary
Pigeonpea [Cajanus cajan (L.) Millsp.] is the most versatile food legume with diversified uses as food, feed, fodder and fuel It accounts for 5% of global pulse production. Besides being the major sources of dietary protein, they plays an important role in sustaining nutrient level in soil productivity by fixing atmospheric nitrogen (Kumar Rao and Dart, 1987) for crop productivity. Soil moisture, temperature, soil pH, mineral nutrient supply, salinity and nodule damage by insects are presumably the most important factors limiting the biological nitrogen fixation (Kumar Rao, 1990). To combat the above stated low yield, an experiment was designed to find out the influence of liming and micronutrients on production of pigeonpea in Alfisols under rainfed conditions
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