understand the use of fertiliser to increase crop yield
-growth of plants is achieved by fertilizers to the soil.
-fertilizers take the form of nitrates and phosphate. or sometimes both
-compounds go down into the soil and taken up in the root structure and then moved into the transpiration stream up to the leaf and used in the leaf for the construction eg. nitrate form protein and phosphate- DNA and membrane structure.
-fertilizers can be divided into 2 groups.
-organic and artificial.
-organic is produced by animal waste on farms. (cow faeces)
-then grows through the process of decomposition and fermentation.
-forms a compound/substance called slurry. this is applied to the fields giving a supply of nitrate and phosphate for growth of crops.
-artificial takes the form of chemicals which is synthetically produced.
-potassium nitrate and ammonium nitrate (solution). this can be brought by the farmer.
-will release the nitrates. (solution into the soil water)
-will promote growth same way as the organic one.
No comments:
Post a Comment