Class 9 Science - Chapter Improvement in Food Resources NCERT Solutions | What are the advantages of inter-croppin
What are the advantages of inter-cropping and crop rotation?
Inter-cropping and crop rotation both play an important role in increasing the yield of crops. Inter-cropping helps to maintain soil fertility and prevents pests and diseases from spreading throughout the field. It increases productivity per unit area. Crop rotation improves the soil fertility and avoids depletion of a particular nutrient. It minimizes the pest infestation and diseases. Both these methods reduce the need for fertilizers. It also helps in controlling weeds and controls the growth of pathogens and pests in crops.
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In a reaction, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.2 g of carbon dioxide, 0.9 g water and 8.2 g of sodium observations are in agreement with the law of conservation of mass.
sodium carbonate + ethanoic acid → sodium ethanoate + carbon dioxide + water
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