Think and Answer
1. Kishan always adopts the process of mixed cultivation, for getting a higher yield of a crop.
However, he always needs to keep adding more fertilizers in this method. Can you guess why?
(Hint: Nutrients in the soil get used up faster.)
2. Which irrigation method would you recommend for fields in a region that has lot of water
shortage? What is the reason for your suggestion?
(Hint: Recall the modern methods of irrigation.)
Answers
Answer:
The use of chemical fertilizers can be reduced by introducing beneficial microorganisms like mycorrhizal fungi (AMF), nitrogen fixers, phosphate solubilizers and plant growth promoting rhizomicroorganisms (PGPR) to sustain plant productivity,
improve nutrient availability for plants and maintain soil health.
Answer:
Explanation:
1. As he does mixed cultivation the crops utilize nutrients from the soil and as he is planting crops continuously the nutrients in the soil get depleted. So to restore its nutrient level to normal he has to increase fertilizer use
2.drip irrigation system is the best
because
it supplies water to the plants drop by drop till the plant utilises all of it. This method doesn't allow water to evaporate fast allowing the plants to completely absorb the water also the dripping stops once the plant's needs are satisfied this ensures that even one drop is not wasted