How modern method of farming affect land as important resource?
Answers
Answered by
5
Today’s chemical farms have little use for the skilled husbandry which was once the guiding principle of working the land. The emphasis today is solely on productivity – high input in exchange for high returns and productivity (mostly diminishing now however for farmers worldwide). Four important considerations – what happens to the land, the food it produces, the people who eat it and the communities which lose out – are overlooked.
1Land exhaustionThe constant use of artificial fertiliser, together with a lack of crop rotation, reduces the soil’s fertility year by year.2FertilisersHigh yield levels are produced by applying large quantities of artificial fertilisers, instead of by maintaining the natural fertility of the soil. 3Nitrate run-offAbout half of the nitrate in the artificial fertiliser used on crops is dissolved by rain. The dissolved nitrate runs off the fields to contaminate water courses 4.soil erosion Where repeated deep ploughing is used to turn over the ground, heavy rains can carry away the topsoil and leave the ground useless for cultivation. 5Soil compactionDamage to the structure of soil by compression is a serious problem in areas that are intensively farmed. Conventional tillage may involve a tractor passing over the land six or seven times, and the wheelings can cover up to 90 per cent of a field. Even a single tractor pass can compress the surface enough to reduce the porosity of the soil by 70 per cent, increasing surface run-off and, therefore, water erosion. In the worst cases, the surface run-off may approach 100 percent – none of the water penetrates the surface. 6Agricultural fuelAs crop yields grow, so does the amount of fuel needed to produce them. European farmers now use an average of 12 tons of fuel to farm a square kilometre of land; American farmers use about 5 tons (1987 figures). 7. Biocide spray The only controls used against weeds and pests are chemical ones. Most crops receive many doses of different chemicals before they are harvested. 8 cruelty to animal -On most “modern” farms, all animals are crowded together indoors. Complex systems of machinery are needed to feed them, while constant medication is needed to prevent disease. The cruelty involved in managing, breeding. growing and slaughtering farm animals today is unimaginably repulsive and horrifying.9Animal slurry-With so many animals packed together in indoor pens, their manure accumulates at great speed. It is often poured into lagoons which leak into local watercourses, contaminating them with disease-causing organisms and contributing to algae-blooms.10Imported animal feed-Many farms are not self-sufficient in animal feed; instead they rely on feed brought into the farm. This often comes from countries which can ill afford to part with it.11Stubble burningIn countries where stubble is burned, large amounts of potentially useful organic matter disappear into the sky in clouds of polluting smoke.12. -LOSS OF CULTIVATED BIODIVERSITY -Large and other chemical farms tend to be monocultures growing the same crop and crop variety.HOPE IT HELPS. PLZ MARK AS BRAINLIEST.
1Land exhaustionThe constant use of artificial fertiliser, together with a lack of crop rotation, reduces the soil’s fertility year by year.2FertilisersHigh yield levels are produced by applying large quantities of artificial fertilisers, instead of by maintaining the natural fertility of the soil. 3Nitrate run-offAbout half of the nitrate in the artificial fertiliser used on crops is dissolved by rain. The dissolved nitrate runs off the fields to contaminate water courses 4.soil erosion Where repeated deep ploughing is used to turn over the ground, heavy rains can carry away the topsoil and leave the ground useless for cultivation. 5Soil compactionDamage to the structure of soil by compression is a serious problem in areas that are intensively farmed. Conventional tillage may involve a tractor passing over the land six or seven times, and the wheelings can cover up to 90 per cent of a field. Even a single tractor pass can compress the surface enough to reduce the porosity of the soil by 70 per cent, increasing surface run-off and, therefore, water erosion. In the worst cases, the surface run-off may approach 100 percent – none of the water penetrates the surface. 6Agricultural fuelAs crop yields grow, so does the amount of fuel needed to produce them. European farmers now use an average of 12 tons of fuel to farm a square kilometre of land; American farmers use about 5 tons (1987 figures). 7. Biocide spray The only controls used against weeds and pests are chemical ones. Most crops receive many doses of different chemicals before they are harvested. 8 cruelty to animal -On most “modern” farms, all animals are crowded together indoors. Complex systems of machinery are needed to feed them, while constant medication is needed to prevent disease. The cruelty involved in managing, breeding. growing and slaughtering farm animals today is unimaginably repulsive and horrifying.9Animal slurry-With so many animals packed together in indoor pens, their manure accumulates at great speed. It is often poured into lagoons which leak into local watercourses, contaminating them with disease-causing organisms and contributing to algae-blooms.10Imported animal feed-Many farms are not self-sufficient in animal feed; instead they rely on feed brought into the farm. This often comes from countries which can ill afford to part with it.11Stubble burningIn countries where stubble is burned, large amounts of potentially useful organic matter disappear into the sky in clouds of polluting smoke.12. -LOSS OF CULTIVATED BIODIVERSITY -Large and other chemical farms tend to be monocultures growing the same crop and crop variety.HOPE IT HELPS. PLZ MARK AS BRAINLIEST.
Answered by
6
Explanation:
Modern farming methods refer to the agricultural production system characterized by the high inputs of capital, labour, heavy usage of farm machinery such as threshers, harvesters, winnowing machine, heavy usage of technology such as selective breeding, pesticides, chemical fertilizers and insecticides.
Similar questions