Honey Sing
Improvement in food resources
Answer the following questions *****1.What is photoperiodism? Ans: Photoperiodism is the effect of duration of sunlight in the day and night cycle on seed germination and flowering in plants. *****2. What are kharif crops? Kharif season crops are rainy season crops. Sowing is done at the beginning of the monsoon season in june to july and the crops are harvested at the end of the monsoon season, during September or October. Eg-Rice, maize , soybean *******3. What are rabi crops? Rabi season crops are winter season crops. Sowing is done at the beginning of the winter season in October to November and the crops are harvested by March or April. Eg-Wheat , barley, gram ********4. What do we get from cereals, pulses, fruits and vegetables? (i) Cereals provide us with carbohydrates. Also, they are a rich source of energy. (ii) Pulses give us proteins. (iii) Fruits and vegetables are a rich source of vitamins and minerals. A small amount of proteins, carbohydrates, and fats are also present in them. 5.What are the different approaches practiced in agriculture? i)Crop production management ii)Crop protection management iii)Crop variety improvement 6.What are nutrients? The inorganic chemical substances which the plant absorb from their surroundings are called nutrients.
********7. Prepare a table showing the plant nutrient and their sources Soil Nitrogen, phospherus, pottassium, calcium, magnesium, sulphur, Iron, Manganese, Boron, Zinc, Copper, Molybdenum, Chlorine Air Carbon, Oxygen
Water Hydrogen **********8.What are the differences between manures and fertilizers? Manures Fertilizers They are organic substance obtained through Fertilizers are inorganic or organic decomposition sunstances It contain large quantities of organic matter Organic matter is not present They contain nutrients in small quantities Fertilizers contain much higher amount of nutrients, and are required in very small quantities They are not nutrient specific They
Answer the following questions *****1.What is photoperiodism? Ans: Photoperiodism is the effect of duration of sunlight in the day and night cycle on seed germination and flowering in plants. *****2. What are kharif crops? Kharif season crops are rainy season crops. Sowing is done at the beginning of the monsoon season in june to july and the crops are harvested at the end of the monsoon season, during September or October. Eg-Rice, maize , soybean *******3. What are rabi crops? Rabi season crops are winter season crops. Sowing is done at the beginning of the winter season in October to November and the crops are harvested by March or April. Eg-Wheat , barley, gram ********4. What do we get from cereals, pulses, fruits and vegetables? (i) Cereals provide us with carbohydrates. Also, they are a rich source of energy. (ii) Pulses give us proteins. (iii) Fruits and vegetables are a rich source of vitamins and minerals. A small amount of proteins, carbohydrates, and fats are also present in them. 5.What are the different approaches practiced in agriculture? i)Crop production management ii)Crop protection management iii)Crop variety improvement 6.What are nutrients? The inorganic chemical substances which the plant absorb from their surroundings are called nutrients.
********7. Prepare a table showing the plant nutrient and their sources Soil Nitrogen, phospherus, pottassium, calcium, magnesium, sulphur, Iron, Manganese, Boron, Zinc, Copper, Molybdenum, Chlorine Air Carbon, Oxygen
Water Hydrogen **********8.What are the differences between manures and fertilizers? Manures Fertilizers They are organic substance obtained through Fertilizers are inorganic or organic decomposition sunstances It contain large quantities of organic matter Organic matter is not present They contain nutrients in small quantities Fertilizers contain much higher amount of nutrients, and are required in very small quantities They are not nutrient specific They