Study of Site Specific Nutrients Management of Cowpea Seed Production and Their Effect on Soil Nutrient Status

Abstract

AbstractsTo produce anticipated output of any crop, the site specific nutrients management (SSNM) is essential for balance and adequate nutrients supply without impairing the inherent fertility status of soil. For cowpea seed production and to maintain soil nutrient status, a field experiment was conducted with nine treatments (nutrients combinations) to find out appropriate SSNM practice. Nutrients especially N, P, K, S, Zn and Bo requirement for cowpea seed production was estimated to 30, 60, 50, 30, 15 and 2.0 kg per hectare respectively and treated as 100% of SSNM. Growth and development parameters were significantly influenced with the treatments. Maximum plant height (61.9 cm) was recorded when crop was fed with 125 per cent of SSNM. However minimum plant height (54.8 cm) was recorded in case of SSNM-N. Leaf Area Index (LAI) at 60 DAS ranged from 3.37 to 3.91. Nodules dry weight was significantly influenced by boron treatments apart from nitrogen and other as well. Maximum seed yield was obtained (2237.2 kg /ha) in the plot fertilized with 125 per cent of SSNM and minimum (1343.5 kg/ha) was recorded in the plot fertilized with state recommendation. Highest and lowest gross ( 40270/-and 24183/-) was recorded with 125 per cent of SSNM and with state recommendation respectively. Application of 125 per cent of SSNM recorded maximum uptake of nitrogen (205.3 kg / ha) which is at par with 100 % of SSNM. None of the treatment influences significantly soil fertility and physico-chemical properties of the soil rather slight improvement were recorded in all the observed parameters though considerable build-up of available P and exchangeable K was noticed in plots fertilized with SSNM.

Growth and yield parameters of three cowpea (Vigna unguiculata L. Walp) lines as affected by planting date and zinc application rate

“…Cowpea seed as well as the vegetative parts make a major nutritional contribution to the human diet. 10 The seed contains 25% protein and 64% carbohydrates 11,12 , with 27-34% protein in the leaves 13,14 . In South Africa, cowpea is mainly cultivated in the Limpopo, Mpumalanga, North-West and KwaZulu-Natal Provinces.…”

Effects of Rhizobium, PSB Inoculation and Phosphorus Management on Soil Nutrient Status and Performance of Cowpea in Acid Soil of Arunachal Pradesh, India

“…It is warm season crop of humid tropics and sub tropical zones, well adapted to many areas of the country including North East India. It has manifold uses such as vegetable, pulse, green manuring and fodder crop (Singh et al, 2012). Cowpea leaves and green pods are consumed as vegetable and the dried grain is used in many different food preparations.…”

How Long-Term Chemical Fertilization of Sloping Cropland Enhances Yield and Fertility without Compromising Coil Structure

“…However, this is not always the case. It depends on the nutrient content, nutrient balance, nutrient requirements of the specific crop, soil water status, and other factors [40][41][42]. In this research, millet yield increased with the enhanced fertilizer input from N1P0 to N2P0, N1P1 and N1P2, but the yield did not increase continuously when N and P input are enhanced further at N2P1 and N2P2 treatments.…”