Agriculture Paper 1 Questions and Answers - Momaliche Joint Pre Mock Exams 2022

INSTRUCTIONS TO CANDIDATES

This paper consists of three sections A,B and C
Answer all the questions in section A and B.
Answer TWO questions in section C in the space provided

SECTION A (30 MKS)
Answer all the questions in this section in the spaces provided

State three characteristic of shifting cultivation. (1 1/2mks)
State any four factors that determine the spacing of a crop . (2mks)
State two conditions under which the opportunities cost is zero in a farming practice. ( 1½mks)
Give two activities carried out during hardening off tomatoes seedling . (2mks)
State three benefits of minimum tillage in crop production . ( 1 1/2mks)
Differrentiate between Olericulture and Pomoculture as used in crop production.(1mks)
Name three negative effects of strong wind on Agriculture . ( 1 1/2mks)
Differentiate between hybrid and composite as used in crop production . (1mk)
Name three reasons for treating water in the farm. ( 1 1/2mks)
Outline four disadvantages of communal land tenure system. (2mks)
List three aspects of light that influence crop growth . ( 1 1/2mks)
List three reasons for conserving forage. ( 1 1/2mks)
Name four factors that influence soil erosion. (2mks)
What is integrated pest management. (1mk)
Name four types of water pumps which can be used in the farm . (2mks)
State four factors that determine the stage at which a grain crop is ready for harvesting . ( 1 1/2mks)
Name four methods of farming. (2mks)
State two crop production practices that can be carried out to maintainoptimumplant population. (1mk)
State four information contained in land title deed. (2mks)

SECTION B (20 MARKS)
Answer all the questions in this section in the space provided.

A farmer has four plots P1,P2,P3,& P4 as shown in the table below .

P1 P2 P3 P4

Infested with Bacteria wilt Deficient in Nitrogen Infested with witch grass(strigaspp) Prone to soil erosion
1. A Farmer intends to grow Maize ,Irish potatoes ,beans and Rhodes grass .plan a rotation for the first year of the rotation system. (2mks)
2. Account for the plan above . (4mks)
Study the illustration below and answer the question that follow.
1. Name the varieties which is resistantto bird attack . (1mk)
2. Give a reason for your answer in a above. (1mk)
3. Identify pest Q which has attacked sorghum seedling labeled R. (1mk)
4. State two methods that are used in controlling birds in a field of sorghum. (2mks)
Below is a diagram of a crop pest.
1. Identify the pest in the diagram . (1mk)
2. Suggest two ways of controlling the pest . (2mks)
3. Name any two diseases of cabbages. (2mks)
4. Give three advantages of training in crops. (3mks)

SECTION C (40 MARKS)
Answer any two questions in this section in the space provided.

1. Outline ten harmful effects of crop pest (10mks)
2. State the effect of land fragmentation (10mks)
1. Describe the production of tomatoes under the following sub heading :
  1. Ecological requirement (3mks)
  2. Land preparation (4mks)
  3. Transplanting (4mks)
  4. field management practices(3mks)
2. Outline six importance of crop rotation.(6mks)
1. Outline ten safety precations when using Herbicides.(10mks)
2. State and explain biotic factors that influence agriculture.(10mks)

MARKING SCHEME

- Use of simple hand tools
- Practicable with annual crops not with perennials
- Agricultural output from the whole system is low
- Plenty of land is available to the farming community
- Input such as pesticides, fungicides,fertilizer are rarely used. (Any 3 x ½marks)
- machinery to be used
- Growth habit of the crop
- Prevalence of pest and diseases
- Soil fertility
- Soil moisture content. (Any 4 X 1)2)
- Where there are no alternatives enter prises to choose from.
- When resourses are unlimited/free. (2x1)
- gradual reduction of watering
- Gradual removal of shade (2x 1 marks)
- maintains soil structure
- Minimizes soil erosion
- Conserves soil moisture
- Saves time and cost of production. (Any 3 x1/2 marks)
- Olericulture is growing of vegetables while pomology growing of fruits. (1 mark)
- Destroy farm sructures
- Is an agent of soil erosion
- Cause lodging in cereals and damage to crops
- Cause evaporation of moisture.
- Cause spread of pests and diseases (Any 3 X ½marks)
Hybrid are varieties of maize bred by crossing varieties under controlled pollination while composite are varieties bred by growing a number of varieties together under uncontrolled pollination (1 mark, mark as a whole)
- To kill disease causing micro organisms
- To remove chemical impurities
- To remove smells and bad taste
- To remove sediments of solid particles (Any 3 x ½ marks)
- Livestock breeding is not controlled
- It is difficult to control parasites and diseases
- Permanent farm plans and investments cannot be done
- It is not possible to use the land as collateral to access farm credit since it has no title deed
- Soil conservation measures are not applied hence occurrence of soil erosion
- There is easy spread of pest and diseases (Any 4 x ½ marks)
- Light intensity
- Light wavelength
- Light duration ( 3 x ½ marks)
- Available of forage is distributed to livestock throughout the year
- Give maximum utilization of available land
- Act as source of income
- To ensure feed supply to livestock during dry period (Any 3 x ½ marks)
- Topography of land
- Rainfall intensity
- Overstocking
- Clean weeding
- Type of soil
- Vegetation cover
- Deforestation
- Planting annual crops (Any 4 x ½ marks)
- Is a pest control method that combines both cultural chemical control methods (1 mark)
- Hydram pumps
- Semi rotary pumps
- Centrifugal pumps
- Piston pumps
- Weather conditions
- Market demand
- Prevailing market price and profit margin
- The purpose of the crop (4 x ½ marks) Rej.concentration of required chemicals
- Mixed farming
- Agroforestry
- Nomadic pastrolism
- Organic farming
- Shifting cultivation (4 x ½ marks)
- Gapping
- Thinning (2 x ½ mark)
- The land parcel number
- Date of registration
- The name and identity card number of the owner
- The type of ownership
- Seal of the registrar
- Land parcel number (Any 4 x ½ marks)