measuring primary productivity

Primary and Secondary Productivity - 'The amount of organic matter or biomass produced by an individual organism, population, community or ecosystem during a given period of time is called productivity'. Primary production refers to all or any part ..

'The amount of organic matter or biomass produced by an individual organism, population, community or ecosystem during a given period of time is called productivity..

One of the primary objectives of agriculture is to produce food. In the entire history of agriculture, food production has remained a prime objectiv..

Introduction - One of the primary objectives of agriculture is to produce food. In the entire history of agriculture, food production has remained a prime objective. Human food needs have undergone many qualitative and quantitative modifications in the last 50 - 100 years. Mainl..

In a Rectangular Cartesian System of coordinates the position of a point in a plane is determined by an ordered pair whose elements give the distances from the intersecting straight lines at right angles to each other. These lines are called the axes. The vertical line is called the Y-axis and th..

The circle graph gives the percentage of wheat production in different states in a year. Find the measure of the central angle that represents percentage of wheat production of Kansas State. => 104° or 144° or 94° or None of the above..

Work and Measurement of Work - Let us now discuss the conditions to be satisfied for work to be done. From the above examples, it is clear that work is said to be done when a force acts on an object and the point of application of the force moves in the direction of force. Hence, the esse..

Work is said to be done when a force acts on an object and the point of application of the force moves in the direction of force. Conditions to be satisfied for work to be done: Some force must act on the object The point of application of force must move in the direction of force The producth..

Dipole Moment - A Measure of Degree of Polarity - Molecules having two equal and opposite charges separated by certain distance are said to possess an electric dipole. In the case of such polar molecules, the centre of negative charge does not coincide with the centre of positive charge. ..

Name of the Crop Name of Disease Symptoms Control Measure Rice Blast Brown boat-shaped lesions appear on the leaves Seed treatment with thiram solution in water. Spray bavistin at 10 days interval Wheat Rust Yellow, brown or black elongated spots appear on l..