2. Institutional Publications
Permanent URI for this communityhttp://localhost:4000/handle/123456789/96
Browse
26 results
Search Results
Item Efficiency of complex fertiliser on rice(Kerala Agricultural University, 1979) Balakrishna Pillai, P; Sasidhar, V K; Vikraman Nair, RItem Effect of graded doses of nitrogen on the growth, yield and nitrogen uptake of soyabean under rhizobium inoculated and non-inoculated conditions(Kerala Agricultural University, 1974) Vikraman Nair, R; Tajuddin, EItem Studies on the comparative performance of granular weedicides on rice(Kerala Agricultural University, 1975) Vikraman Nair, R; Sadanandan, NThe field experiment was conducted in the farm attached to the Agricultural College, Vellayani frr a period of two seasons to evaluate the performance of three granular weedicides on the lethality of weeds of rice and on the growth and yield of rice. There was no effect on the growth and yield of rice or on number and dry weight of weeds. The differences between unweeded control and continuously hand weeded treatment also remained nonsignificant both in terms of rice yield and weed growth. This points to the fact that continuous water logging itself was effective in keeping down weed growth and in preventing the consequent effect on rice yield. There was no apparent toxicity of the chemicals on the existing weed species of the area.Item Study on leaf area index and net assimilation rate of sunflower (Helianthusannuus L.) variety peredovik as affected by graded doses of nitrogen and phosphorus(Kerala Agricultural University, 1976) Thomas Varghese, P; Sadanandan, N; Vikraman Nair, RItem Studies on the effect of methods of nitrogen application on mineral uptake of high yielding sweet potato varieties(Kerala Agricultural University, 1976) Alexander, D; Sadanandan, N; Vikraman Nair, RA field experiment was conducted in the red loam soils of the farm attached to the College of Agriculture, Vellayani during November 1972 to March 1973 to study the effect of methods of nitrogen application on nitrogen uptake of three sweet potato varieties i, e. H 41, H42 and Kottaranchola. The results showed that nitrogen uptake was markedly affected by methods of application. Uptake was more when nitrogen was applied in two split doses., i. e. half at planting and the remaining half as foliar spray 35 days after planting. Full basal application resulted in the lowest uptake of nitrogen. It was also observed that there was a translocation of considerable portion of nitrogen from vines to developing tubers.Item Study on the yield and yield attributes of sunflower variety 'peredovik' as affected by graded doses of nitrogen and phosphorus(Kerala Agricultural University, 1976) Thomas Varghese, P; Sadanandan, N; Vikraman Nair, RA field experiment was conducted during the year 1973 to study the effect of graded doses of nitrogen and phosphorus on yield of seeds and oil content of sunflower variety 'Peredovik'. Nitrogen application up to 90 kg/ ha helped in increasing the total yield of seeds but reduced the percentage of oil. Phosphorus application was found to have no significant influence.Item Effect of different levels of nitrogen and phosphorus on the uptake of nitrogen and phosphorus at various stages of growth of sunflower variety peredovik(Kerala Agricultural University, 1976) Thomas Varghese, P; Sadanandan, N; Vikraman Nair, RAn experiment was conducted at the College of Agriculture, Vellayani to study the effect of graded doses of nitrogen and phosphorus on the uptake of nitrogen and phosphorus at three growth stages of sunflower viz 20th day after planting, flowering and harvest. The effect of nitrogen up to 90 kg/ha resulted in significant linear increase in nitrogen uptake at all the stages except on the 20th day after planting. Phosphorus at 90 kg level showed significance in enhanced nitrogen uptake at the 20th day of planting but not later. While for the phosphorus uptake, significant effect was noticed due to increased levels of application of nitrogen at all the three stages, levels of applied phosphorus did not bring about significant changes in the uptake of this nutrient Increase in uptake of these nutrients showed a linear relationship with the magnitude of growth of the plants.Item Comparison of three methods of measurement of leaf area in soybean(Kerala Agricultural University, 1979) Geetha krishnan Nair, P; Vikraman Nair, R; Sukumaran Nair, PItem Comparative performance of fodder maize varieties at graded levels of nitrogen(Kerala Agricultural University, 1980) Nair, M S; Vikraman Nair, RItem Effect of methods of fermentation on temperature, acidity and quality of cocoa (Theobroma cacao L.) beans(Kerala Agricultural University, 1981) Adomako, D; Vikraman Nair, R; Kumaran, KThe trend of variation in temperature, and pH of cocoa beans in heap and tray methods of fermentation was studied at the Cocoa Research Institute of Ghana. Heaps of sizes having 50 kg, 150kg, and 450 kg and the standard tray method of fermentation were tested and the grades of dried beans obtained from the different methods were compared. In the heaps, a higher peak temperature was reached as compared to the trays. The beans in the heaps followed regular fluctuations in temperature during fermentation while the temperature fluctuations were low in the trays. The final pH values of pulp and beans were not much affected by the method of fermentation and heap size However, the decrease in pH of cotyledons was slower in the largest heap The fermentation methods and heap sizes did not markedly affect the grade of the dried beans.
- «
- 1 (current)
- 2
- 3
- »