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Which of the following practices directly contributes to crop yield improvement?
Delayed harvest
Planting the same crop year after year
Timely irrigation and fertilization
Ignoring pest signs
Timely irrigation and fertilization
Timely irrigation and fertilization directly improve crop yield by ensuring plants receive essential nutrients and water during critical growth phases. These inputs optimize physiological processes like photosynthesis and nutrient uptake, leading to robust plant development and higher biomass accumulation.
Timely irrigation and fertilization directly improve crop yield by ensuring plants receive essential nutrients and water during critical growth phases. These inputs optimize physiological processes like photosynthesis and nutrient uptake, leading to robust plant development and higher biomass accumulation.
Think of crop growth like a marathon runner; just as an athlete needs consistent hydration and energy-rich food during the race to perform at their best, crops need water and nutrients at specific development stages to achieve their maximum yield potential.
N-P-K (Nitrogen, Phosphorus, Potassium): 'Need Plants Kicking' to remember the primary nutrients.
6CO2тАЛ+6H2тАЛOlightтАЛC6тАЛH12тАЛO6тАЛ+6O2тАЛ тАФ Represents the photosynthesis process which is limited by water availability and nutrient supply.
Plants require macronutrients like Nitrogen (N), Phosphorus (P), and Potassium (K) to synthesize proteins and nucleic acids. Proper irrigation maintains turgor pressure in cells, which is essential for cell division and enlargement, and facilitates the transport of minerals from the soil to the xylem. By applying these inputs when the plant's metabolic demand is peak, the efficiency of resource utilization is maximized.
Nitrogen is vital for vegetative growth and chlorophyll production.
Phosphorus plays a key role in energy transfer (ATP/ADP cycle).
Irrigation efficiency refers to the ratio of water utilized by the plant to the total water applied.
Soil health is maintained through balanced fertilization to prevent leaching or toxicity.
Increases biomass and seed yield per hectare.
Shortens the duration of the growth cycle in some cases.
Improves crop resilience against minor environmental stressors.
Over-fertilization can lead to nutrient runoff and water pollution.
Excessive irrigation may lead to waterlogging, depriving roots of oxygen.
Precision agriculture using soil moisture sensors.
Drip irrigation systems for efficient nutrient delivery (fertigation).
Delayed harvest leads to grain shattering and crop losses.
Planting the same crop (monoculture) year after year leads to soil depletion and accumulation of specific pests.
Ignoring pest signs leads to exponential damage and total crop failure.
C is correct тАФ Timely irrigation and fertilization ensure optimal physiological growth and provide the necessary resources to maximize agricultural output.
In competitive exams, always identify the option that describes active, proactive management, as agriculture is highly dependent on timing the inputs with the plant's phenological stages.
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