Q1. Briefly describe three natural methods of replenishing the nutrients of the soil.
Q2. If soil has all the nutrients, why do we need to replenish it?
Q3. Crop rotation has helped the farmers to increase the crop yield . Comment on
this statement.
Q4. A farmer leaves his field uncultivated for a few months. State the significance of
this practice .
Q5. Compare and contrast:
a) Manure and fertilizers b) Crop Rotation and Field Fallow
Q6. Choose the correct option.
A)The system of irrigation where in water is supplied drop by drop near the roots of
plants, is called
(a) pulley system (b) drip system (c) sprinkler system (d) lever system
B)Which of the following is not the traditional method of irrigation?
a)Sprinkler system b) Moat c) Drip irrigation
Q7. Drip irrigation saves wastage of water because it supplies water directly to the
roots. Why is drip irrigation not used by all the farmers?
Q8. What method of irrigation will you use if you live in a dry area with shortage of
water? Explain the method.
Answers
Answer:
1)use cow doing use onin peel use plancha ghavya a technique used in lndia
6. the correct option.
A)The system of irrigation where in water is supplied drop by drop near the roots of
plants, is called
(b) drip system
B)Which of the following is not the traditional method of irrigation?
c) Drip irrigation
Explanation:
1.The method to replenish the nutrients which is present in the the soil is binding fertilizer, manure and by using other certain bio fertilizers
- 2. Due to over growth of crop sometimes the soil loses its essential nutrients and hence fertilizers adequate.
3. crop rotation helps in increasing the crop yield because different types of crops required different amount of Nutrition , hence the nutrition of the soil is replenished.
4.if a field is uncultivated for a few month there is automatic replenish of Nutrition is nitrogen and phosphorus and hence the soil becomes very fertile
5a.manure is a biofertilizer where is the other types of fertilizers are usually harmful Chemicals that cause soil pollution
5b crop rotation is a type in which different types of crops are grown in the same field in different seasons
7. drip irrigation saves the wastage of water because it prevents the loss of water due to evaporation. Drip irrigation is a comparatively expensive process and hence it is not used by all farmers.
8.drip irrigation is the type of irrigation I will use in an area where there is shortage of water. By this method water is spread through underground pipes to the root of plant where water is required..
To know more about drip irrigation,
Why is drip irrigation system good for some regions ? - Brainly.in
https://brainly.in/question/3391889