| Popis: |
In this paper an attempt has been made to analyze microwave remote sensing dielectric behaviour of soil in India. A researcher may research any part of the world but it has been seen from literature review more or less 15-20 states are in well position to recognize in the field of microwave remote sensing dielectric behaviour viz : Tamilnadu, Andhra Pradesh, Odisha, Rajasthan, J & K, Uttar Pradesh,Uttarakhand, Kerala, Gujarat, West Bengal, Madhya Pradesh, Chhattisgarh, Haryana, Maharashtra, Punjab. A different study predicts that the dielectric properties of soil at microwave frequencies are the function of its physico-chemical constituents. The Physical capacities of a soil are influenced by the size, proportion, arrangement and composition of the soil particles. Microwave remote, sensing techniques are now a day’s widely adopted and used to estimate the presence of natural resources underneath the ground surface. The present study has been taken to have an idea of microwave remote sensingcharacteristics of soil properties in agriculture for food purpose. These dielectric properties can be used to predict the soil fertility and health. In this paper it has been also discussed about microwave remote sensing characteristics of soil for agriculture. The quality of soil is controlled by physical, chemical and biological components of soil and their interactions. The soil has physical, chemical as well as electrical properties, colour, texture, grain size, bulk density etc. comprise the physical properties, nutrients, organic matter, pH, etc. comprise chemical properties while, electrical properties include dielectric constant, electrical conductivity and permeability. The concept of soil health and soil quality has consistently evolved with an increase in the understanding of soils and soil quality attributes. The dielectric constant of soil is dependent on the bulk density of soil and hence porosity and wilting point of soil. The dielectric constant of Indian soils is dependent on the texture of soil i.e. the percent content of sand, silt and clay. |
