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determine the agronomic factors of fertilizersthese factors are key to efficient use of fertilizers for crop production and include fertilizer
determine the crop factors of fertilizerscrop responses to fertilizers vary with the nature as well as the variety of the crop which in turn is
what are the climatic factors of fertilizer requirements these include temperature rainfall and its distribution evaporation length of day and
describe the soil factors in fertilizer requirementsphysical condition of the soil soil fertility and soil reaction are three important soil
carbon l4 with a half-life of 5568 years is used to date a sample of wood sample has l8 the carbon l4 contained in a living tree of same species
determine in detail about the phosphorus phosphorus with nitrogen and potassium is classed as a major nutrient element it is a constituent of
determine how nitrogen is useful in plant nutrientsthe supply of nitrogen is related to carbohydrate utilisation if nitrogen supply is insufficient
define the both macronutrientand micronutrientan element necessary in large amounts usually gt 50 mgkg in the plant for the growth of plant is called
determine about the plant nutrients the primary source of energy for photosynthesis in plants is the sun a complete analysis of plants shows the
how do you explain the fact that clay soils which commonly have higher pore space than sandy soils are often more poorly aerated than sandy soilsclay
which class of microflora would you expect to be most active under following conditions i in rice paddies requiring nitrogen - blue-green
why are nematodes agriculturally very importantnematodes are the abundant soil microfauna being predatory and saprophytic in nature they cause a
explain why earthworms are said to be the most important soil animalsearthworms ingest organic matter as well as soil where they mix granulate and
differentiate between soil water content and plant available soil moisture the mass of water lost relative to mass of dry soil is called soil
how soil textural classes categorised and what are is their significance the soil textural classes are based on the percentage of the separates which
what are the disadvantages of alkaline soilsas most of the plants can assimilate nitrogen in its nitrate form and oxidation of ammonium fertilizer
explain the direct and indirect effects of lime applicationthe direct and indirect effects of lime application to acid soils generally are increased
define the uses of buffer methodthe buffer method of shoemaker and coworkers for determining lime requirement is being widely used in india in this
determine the term - soil moisturethe higher the soil moisture the more rapid is the rate of reaction the quantity of liming material to be applied
state the process of limingmiddot affects the solubility and availability of most of the plant nutrients and raises the level of
define the process of soil acidityacid soils are made more suitable for agricultural use by liming which raises the soil ph soil acidity is
explain the term liming - decreasing soil acidityacid soils can be managed in two ways viz either by growing crops suitable for particular soil ph or
state the harmul effects of acidity of soil acidity of soil may have harmful effects on plants due to the effect on enzymatic changes reduced
what are the advantages of acid soils the acid soils formed by any of the above processes behave as very strong acids so much so that ph is quite low
state the process of formation of acid soilsthe soil acidity is mainly caused by hydrogen and aluminium ions depending upon the degree of existing