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Why does one need to study about soil and what is its importance?
You would be aware that, from the dawn of agriculture, cultivators were attracted to fertile soils of river valleys. Early Greek and Roman writers have described farming systems that involved leguminous plants, use of ashes and sulphur as soil su pplements. German chemist Justus von Liebig (1840) found that crop yields were increased by adding minerals to soils. He proposed that the mineral elements in the soil added as manures and fertilizers are essential for plant growth. According to him certain factors are essential for plant growth and if any one of these factors is limiting (controlling) plant production would be reduced. Soils are studied today to ascertain which of these factors is below desired level and how its limitation to plant growt h can be removed.
Define Advantages and Disadvantages of Measurement of Cell Mass? Advantage 1. It is a useful technique for estimating fungal and actinomycetes growth. Disadvantages 1.
Objectives of psychological components It is essential to have objective scores, in order to identify and classify deficits in psychological components and processes. The nee
Q. Explain Natural History of Mitral Stenosis ? Untreated, mitral stenosis is a serious disease with observed 10-year mortality of 70-80 per cent in sy
why obwlia is considered to be of special interest in zoologyas an animal showing an intermediate grade of organisation
when pollen tube enters the embryo-sac,it has;
what is r and k selection
Do enzymes act better under acid or basic pH? Most enzymes act in pH among 6 and 8, a range that corresponds to the general acidic level of cells and blood. There are enzymes,
Q.How is it produced and what is the function of cholecystokin in the digestive process? The fat level of the chyme detected in the duodenum stimulates the secretion of cholecy
Explain about the term - paediatric neuropsychologist In the evaluation of infants and young children, all sources of reliable and valid data available to the paediatric neurop
DE A T H - It is universal. It is last event in the degenerative process of ageing. It involves widspread cell break down & cell death. There is no heart beat, n
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