Shaila M & Nafeesa Begum (Chairman & Research Guide), Sahyadri Science College, Shivamogga.
STUDY OF PHYSICOCHEMICAL PROPERTIES OF SOILFROM SUNFLOWERCROP FIELDSIN DAVANGERE DISTRICT, KARNATAKA
Sunflower (Helianthus annuus L.)Isthe fourth oil crop in grain production and the fifth in cultivated area in the world. The crop has most important agronomic characteristics, such as resistance to drought and cold, with wide adaptability to different soil and climatic conditions. In the present study the physicochemical assessment of soil samples were collected randomly from Sunflower crop fields of Davangere region was carried out. The physicochemical analysis of soil is based on the various parameters such as Soil texture, Soil moisture, pH, Moisture content, Electrical conductivity, Micro and macro nutrients in the soil were analysed. Six soil samples were collected from the different places of all the taluks of Davangere district results shows that, the values of pH range from 6.89 to 7.88, while the organic carbon present in the soil range from 0.012 to 0.501 mS/cm, Macronutrients N, P & K present in the range from 154.80-309.60 kg per hectare, 51.34-100.03 kg per hectare and 123.65-512.06 kg per hectare respectively and the micronutrients (Cu, Zn, Fe and Mn) are present in the soil sample range from 0.30-2.40 PPM, 0.50-1.70 PPM, 0.84-24.50 PPM & available 10.72-35.38 PPM respectively. pH was found to vary from neutrality to slightly alkaline. The values of EC indicated that all samples of the soils are non-saline. The soil studies can be considered as good sources of essential nutrients and this information will help farmers to solve the problems related to soil nutrients and amount of which fertilizers to be used to increase the yield of Sunflower crop.