Assertion (A) - Continuous cultivation of crops makes the soil poor in nutrientsReason (R) - Farmers have to add manure to the fields to replenish the soil with nutrients
Question
Assertion (A) - Continuous cultivation of crops makes the soil poor in nutrientsReason (R) - Farmers have to add manure to the fields to replenish the soil with nutrients
Solution
The assertion and the reason are both correct. Continuous cultivation of crops can deplete the soil of its nutrients. This is because plants absorb these nutrients to grow and produce, and without a break or change in crops, the same nutrients are continually being used up. This can result in nutrient-poor soil over time.
The reason also correctly states that farmers often have to add manure or other forms of fertilizers to their fields to replenish these nutrients. Manure is rich in nutrients and organic matter, and adding it to the soil can help replace the nutrients that have been used up by the crops. This is a common practice in sustainable farming and is necessary to maintain the fertility of the soil over time.
Similar Questions
Assertion (A) - Continuous cultivation of crops makes the soil poor in nutrientsReason (R) - Farmers have to add manure to the fields to replenish the soil with nutrients.(a) Both A and R are true and R is the correct explanation of A.(b) Both A and R are true but R is not the correct explanation of A.(c) A is true but R is false.(d) A is false but R is true.
Crop Production ImprovementCrop production management is the process that is used to effectively cultivate and harvest crops.Nutrient ManagementA plant gets its nutrients from air, water and soil. There are sixteen nutrients which are essential for plants. Air supplies carbon and oxygen, hydrogen comes from water, and soil supplies the other thirteen nutrients to plants. Nutrient management is done by supplying the soil with required nutrients by adding fertilizers and manures.To know more about Nutrient Management, visit here.MacronutrientsAmong the 13 essential nutrients, 6 are the essential nutrients required in abundance for the growth and development of plants. These essential nutrients are collectively called macronutrients.Nitrogen (N), Phosphorus (P), Potassium (K), Calcium (Ca), Sulfur (S), and Magnesium are the macronutrients required by plants.MicronutrientsAmong the 13 essential nutrients, 6 are classified into macronutrients and the other 7 are classified into micronutrients. These nutrients include iron (Fe), boron (B), chlorine (Cl), manganese (Mn), zinc (Zn), copper (Cu) and molybdenum (Mo). They are required in very small quantities; therefore, they are also called trace minerals.To know more about Micronutrients, visit here.ManureManure is an organic matter obtained from the solid wastes of animals, humans, sludge, sewage, domestic waste, decomposed dead plants and animals and other plant wastes, including dry leaves, twigs, agricultural wastes, weeds, etc. It contains a huge quantity of nutrients, which improves the soil quality and increase the yield of healthy crops.To know more about Manure, visit here.Compost and VermicompostThe process in which the biological waste material is decomposed in pits is known as composting. When compost is prepared by using earthworms to hasten the process, it’s called vermicompost.To know more about vermicompost, visit here.Green ManurePrior to the sowing of the crop seeds, some plants like sun hemp or guar are grown and then mulched by ploughing them into the soil. These green plants thus turn into green manure, which helps in enriching the soil nutrients.FertilizersFertilizers are commercially produced plant nutrients which are required in small quantities. There are various brands of this fertilizer available in the market. A most common example of fertilizer is NPK fertilizer which provides nitrogen, phosphorus and potassium.To know more about Fertilizers, visit here.Organic FarmingOrganic farming is a farming system with minimal or no use of chemicals as fertilizers and with a maximum input of organic manures. All resources are used optimally to get maximum, chemical-free yield.To know more about Organic farming, visit here.IrrigationIrrigation is the artificial process of applying water to crops to fulfil their water requirements. There are different types of irrigation practised for improving crop yield. This process helps in ensuring that the crops get water at the right stages. i.e. during their growing season, which helps in increasing the expected yields of crops. Irrigation is done with the help of Canals, Wells, River lift system, Tanks, Rainwater harvesting and watersheds.
Which of the following option is correct with respect to the preparation of soil for agriculture?1 pointOne of the most important task in agriculture is manuringLeveling the field is not important for irrigationAll layers of the soil support plant growthThe loose soil helps in growth of microbes
What is the disadvantage of using manure in the fields instead of fertilisers?1 pointIt reduced soil fertilityIt is injurious to healthIt lacks some essential nutrientsIt is a quick solution to use for crops
is the fertile component in soil.
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