Crop Production and Management Science - Crop Production and Management

The term used for the process of separation of grains from chaff is

Which one of the following conditions is not essential to grow maize ?

Which of the following statements is not true for organic manure ?

Read the statement given below .
(I) Seeds requires moisture for germination .
(II) Plants can absorb nutrients mostly in dissolved form .
(III) Irrigation protects crops from both frost and hot air currents .
(IV) Irrigation improves soil texture .
Choose the combination of statements which Indicate the need to irrigate crops .

The pictures below display, two techniques .

What are advantages of choosing sprinkler system over pulley system for irrigation ?

The same kind of plants grown and cultivated on a large scale at a place is called ____________ . ( crop / float )

The main part of the plough is a long log of wood which is called a ____________ .

The first step before growing crops is ____________ of the soil . ( water / preparation )

The crops grown in rainy season are called ____________ .

Ploughing helps the roots to ____________ deep in the soil .

Classify the following crops into Kharif and Rabi crops and write in the tabular column given below. Maize, paddy, mustard, pea, gram, wheat, groundnut, cotton .

Kharif	Rabi
____________	____________
____________	____________
____________	____________
____________	____________

During which months do farmers grow mustard in India ?

Differentiate between sprinkler system and drip system which is more beneficial to rise.

Give two advantages of adding manure to crops.

Chemical substances are added to the soil. How do they differ from manure on the basis of their formation ?

Freshly harvested grains must be dried before storing .

Using good quality seed is the only criterion to get high yield .

Stubs burning in the fields causes air pollution.

Growing different crops in different seasons in the same field will deplete the nutrients of soil .

Fertilisers are organic substances obtained from the decomposition of plant and animal wastes.

Tashu saw her mother keeping the wheat grains on the terrace in a sunny day before storing them. She was confused to see this as she thought the grains will get dirty if kept in open and approached her mother for clearing her doubts.
Her mother explained Tashu the reason behind her act. Tashu then helped her mother to carry the grains to the terrace happily.
(i) The grains were kept on the terrace. Can you suggest a reason ?
(ii) Is it necessary to keep the grains in the Sun? Why or why not ?

Jassi went to his village during vacations. While on his way to a crop field, he saw a person with covered mouth spraying something on crops. He got worried about the crops and asked the person to stop. The person who was his neighbour smiled and explained him the purpose of his act. Jassi was happy to learn a new fact about farming.
(i) According to you, what was the person doing ?
(ii) His mouth was covered. Why ?

Observe the following graphs and answer the questions.

What could be the possible reason behind the varied production of cotton in state 'C' from year 2020 to 2021 ?

Take two sets of seeds, label them as A and B, respectively. Treat seeds of set A with insecticide. Do not provide any treatment to seeds of set B. Plant both the set of seeds in the soil. Analyse the growth of seeds of both set.

Given below is a conversation between two farmers Heera and Beera.
Heera: Brother Beera, your maize crops look beautiful. They have grown pretty fast.
Beera: Yes, I have sprayed urea this time. What about you ?
Heera: Well, I am still relying on good old cow dung. I am saving money for buying a tractor.
Beera: That's good. Tractor saves a lot of time and labour.
Heera: Yes, it's been very labour intensive for me and now these weeds have come up.
Beera: Try weedicides, they are very effective.
Now, answer the following questions.
(i) List the practices which are not environment friendly and why ?
(ii) What is the advantage of modern agricultural Implements over traditional ones ?
(iii) Name one weedicide and the precaution, farmers must take during its application.

As a part of eco-club activity, students were asked to raise a kitchen garden in the school premises. They were provided with some materials given in the box. List the other materials you would require. How will you plan the garden? Write the steps.
Khurpi, water-can, spade, shovel

What is irrigation ? Describe two methods of irrigation which conserve water .

What are weeds ? How can we control them ?

Explain various agricultural practices in sequential manner .

Explain how fertilisers are different from manure .

Which activity of the farmer can promote growth of earthworms and microbes in the field ?

Terms related to agricultural practices are given below. Rearrange them in the correct sequence. harvesting, sowing, manuring, tilling and ploughing. irrigation, weeding.

Give two examples of each. (a) Kharif crop (b) Rabi crop

Name the chemical sprayed in the field to kill the weed.

What do you mean by transplantation ?

Column I	Column II
A. Silos	1. Fertiliser
B. Combines	2. Storage of grains
C. Urea	3. Sprinklets
D. Irrigation	4. Harvesting and threshing