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- Outline various factors to consider when selecting an irrigation pump(Solved)
Outline various factors to consider when selecting an irrigation pump
Date posted: June 30, 2022. Answers (1)
- An irrigation stream of discharge 27m/s is diverted to a check basin of size 12m by 10m. The water holding capacity of the soil is...(Solved)
An irrigation stream of discharge 27m/s is diverted to a check basin of size 12m by 10m. The water holding capacity of the soil is 14%. The average soil moisture content in the crop root zone prior to applying water is 6.5%. If the average depth of the crop root zone is 1.2m, and the apparent specific gravity of the root zone is 1.50, determine how long the irrigation stream should be applied to the basin to replenish the root zone moisture to field capacity.
Given, Discharge, Q = 27 lit/sec
Area, A = 12 m × 10 m = 120 m2
Water holding capacity = 14%
Moisture content before irrigation = 6.5%
Depth of root zone, d = 1.2 m
Apparent specific gravity of the root zone soil = 1.5
Date posted: June 30, 2022. Answers (1)
- The following data was used for irrigation a rectangular piece of land measuring:
360m by 240m using sprinkler irrigation;
Field capacity 22%
Wilting point 12%
Soil water holding capacity...(Solved)
The following data was used for irrigation a rectangular piece of land measuring:
360m by 240m using sprinkler irrigation;
Field capacity 22%
Wilting point 12%
Soil water holding capacity 1000mm per meter depth of soil
Root zone depth for crop in the field 1.2m
Soil bulk density 1.2g/cm3
Irrigation application efficiency 80%
Using the data provided calculate;
i) Net water requirement in mm
ii) Gross water requirement in mm
iii) Irrigation interval assuming that no rain falls during this period
iv) The volume of water in meters required to cover the whole field
Date posted: June 30, 2022. Answers (1)
- Outline any three preventative measures of solifluction(Solved)
Outline any three preventative measures of solifluction
Date posted: June 30, 2022. Answers (1)
- Describe the term solifluction(Solved)
Describe the term solifluction
Date posted: June 30, 2022. Answers (1)
- Outline various measures for reducing solid waste pollution(Solved)
Outline various measures for reducing solid waste pollution
Date posted: June 30, 2022. Answers (1)
- What is solid waste?(Solved)
What is solid waste?
Date posted: June 30, 2022. Answers (1)
- Outline the objectives of environmental management and conservation(Solved)
Outline the objectives of environmental management and conservation
Date posted: June 30, 2022. Answers (1)
- What is environmental resource management?(Solved)
What is environmental resource management?
Date posted: June 30, 2022. Answers (1)
- Outline various factors considered when designing a water distribution system for a farm estate(Solved)
Outline various factors considered when designing a water distribution system for a farm estate
Date posted: June 30, 2022. Answers (1)
- Outline factors considered when siting terraces on a sloping land(Solved)
Outline factors considered when siting terraces on a sloping land
Date posted: June 30, 2022. Answers (1)
- List any five areas protected by the agriculture act cap 318 of the laws of Kenya(Solved)
List any five areas protected by the agriculture act cap 318 of the laws of Kenya
Date posted: June 30, 2022. Answers (1)
- With the aid of a sketch explain the operation of a hydram pump(Solved)
With the aid of a sketch explain the operation of a hydram pump
Date posted: June 30, 2022. Answers (1)
- Outline any factors considered when selecting a drainage method(Solved)
Outline any factors considered when selecting a drainage method
Date posted: June 30, 2022. Answers (1)
- State any five causes of water logging in farms(Solved)
State any five causes of water logging in farms
Date posted: June 30, 2022. Answers (1)
- Determine the discharge capacity of an underground concrete pipeline given that;
Diameter of pipeline – 15 cm
Length of pipeline – 300m
Darcy’s roughness coefficient – 0.009
Difference in...(Solved)
Determine the discharge capacity of an underground concrete pipeline given that;
Diameter of pipeline – 15 cm
Length of pipeline – 300m
Darcy’s roughness coefficient – 0.009
Difference in elevation between water levels at pump-stand and discharge point – 2m
Date posted: June 30, 2022. Answers (1)
- Explain the following irrigation requirements
i) Net irrigation requirement
ii) Gross irrigation requirement
iii) Consumption use
iv) Irrigation interval
(Solved)
Explain the following irrigation requirements
i) Net irrigation requirement
ii) Gross irrigation requirement
iii) Consumption use
iv) Irrigation interval
Date posted: June 30, 2022. Answers (1)
- Explain human activities that contribute to water pollution(Solved)
Explain human activities that contribute to water pollution
Date posted: June 30, 2022. Answers (1)
- Explain any five factors considered when selecting a water supply source(Solved)
Explain any five factors considered when selecting a water supply source
Date posted: June 30, 2022. Answers (1)
- Determine;
i) The moisture content at different depths in the root zone
ii) Moisture content in the root zone at the time of irrigation
iii) Net depth of...(Solved)
The following data was collected to determine the soil moisture content at successive
depths in the root zone before irrigation;
Given that the bulk density of the soil in the root zone is 1.60g/cc and the available moisture
holding capacity of the soil was 16.9cm/m depth, determine;
i) The moisture content at different depths in the root zone
ii) Moisture content in the root zone at the time of irrigation
iii) Net depth of water to be applied to bring the moisture content to field capacity
iv) Gross irrigation requirement at an estimated irrigation efficiency of 80%
Date posted: June 29, 2022. Answers (1)