FARM PLANNING



FARM SURVEYING AND PLANNING

MEANING OF FARM SURVEYING

Farm surveying is defined as the process of measuring and mapping out the position, topography, size and boundary of an area of farmland. It can also be defined as the process by which measuring of land is made on the farm. Such measurements by tables, plans or layout are done for specific purposes.



IMPORTANCE OF FARM SURVEYING AND PLANNING IN AGRICULTURE
Reasons why farm surveying is important include the following:
(1) Determination of size of farmland: Farm survey helps to determine the size or hecterage of farmland.
(2) For feasibility studies: Farm survey is also important or useful for the preparation of feasibility studies.
(3) Proper use of farmland: Farm survey enables farmers to make proper use of the land.
(4) Location of farm buildings: Farmers can determine where to site and locate certain buildings or structures in the farm.
(5) Planning of farmstead: Farm maps or soil maps are useful in planning the farmstead.
(6) For soil classification: Characteristics and features of the various soil units are used for soul classification.
(7) Projection of yield: The yield or productivity of farmland can be projected .
(8) For collateral security: Results of farm survey can be used as collateral for securing loan from financial institutions.
(9) Acquisition of certificate of occupancy (C of O): Farm survey facilities acquisition of certificate of occupancy (C of O).
(10) Determination of gradient of farmland: Farm survey also helps to determine the gradients of the farmland.
(11) Construction of roads: Road and others access ways can be constructed with the knowledge derived from surveying.








SOME COMMON SURVEYING EQUIPMENT/INSTRUMENTS AND USES

Some common surveying equipment or instruments.
(1) Ranging pole
(2) Gunter’s chain
(3) Measuring tape
(4) Prismatic compass
(5) Theodolite
(6) Arrows or pin
(7) Offset staff
(8) Beacons or pillars.
Ranging pole
Description
(i) Ranging pole is made of wood or metal
(ii) It is of varying lengths e.g 18m, 2.4m, or 3.0m
(iii) It is generally circular in section, though some octagonal types are obtainable.
(iv) It is usually painted black, bright, red and white to enable it to be seen from a distance.
(v) It has a pointed end.
Function/uses:
(i) It is used for making stations
(ii) It is also used for making straight lines
Gunter’s chain
Description
(i) It consists of a series of dumb bell-shaped links of steel wires joined together by three small rings
(ii) One gunter’s chain is normally 20.13m (66ft) in length.
(iii) It has brass handles at either side.
(iv) It is divided into 100 links so that each link is 19.8cm or 7.92 ins.
(v) A link is the distance from the middle of the central ring to the middle of the next central ring.
(vi) The chain is entirely metallic.
Precautions to be taken when chaining a farmland.
(i) Pull taut chains, tapes or ropes
(ii) Avoid errors of transporting figures on papers
(iii) Equipment such as theodolite should be placed on a perfect horizontal plane.
(iv) All chains, tapes, ropes, etc must be properly allligned before taking measurement.
(v) Avoid error of parallax when reading measurements.
(vi) Make sure the chain is not faulty before use.
Function/use



It is used in taking short or detailed measurement of length and breadth
Measuring tape
Description
(i) It is usually made of linen of fine steel sheet.
(ii) It is usually marked on one side with metric units and the other side with the imperial unit.
(iii) The tape is of various types and lengths.
(iv) The tape is normally wound in a small case from where it is unwound for use.
Function/use
It is used for taking measurement of length, breadth and height.
Prismatic compass
Description
(i) It is normally placed on a stand
(ii) It has a prism
(iii) It has a compass card marked in degrees, half degrees, minutes and seconds in a clockwise direction.
(iv) It has a straight slot.




Functions/uses
It is used in taking bearings; it is also used in measuring angular distance.
Theodolite
Description
(i) It consists of a tripod stand made of wood of lightweight metal solid or telescopic legs.
(ii) The tripod stand forms the base of the instrument
(iii) It has a lower plate which contains the graduated horizontal circle made of glass or brass
(iv) It has a spirit level which is used to define horizontal plain against which angles of the elevation or depression are measured
Function/use: It is used to measure horizontal or vertical angles or planes.
Arrow or pin
Description
(i) This is thin pointed steel wire of about 3cm long with one end curved into a ring
(ii) A red cloth is normally attached to the ring so that it can be seen from afar.
Functions/uses
(i) It is used during chaining for marking off chain lengths as measured
(ii) It can also be used for marking stations
Offset Staff
Description
(i) This is a graduated rod-3m long
(ii) A hook may be fitted at the top for the purpose of pulling a chain through a hedge
(iii) Each telescope link is 0.3m (30cm) in length
Function/Use
(i) It is used for taking short offset measurements
Beacon or Pillar
Description
(i) It is made of rectangular block usually in concrete form
(ii) Marks are usually inscribed on top of the block
(iii) The beacons are always buried in the ground with marked head raised a little above the ground
Function/Uses
(i) It is used for making off points measured
(ii) It is also used for the recognition of the measured

General Maintenance of Surveying Instruments

(i) All instruments must be clean after use.
(ii) Keep instruments in dry and cool places
(iii) Those with metals parts should be oiled or greased or painted before they are put away for a long time
(iv) Keep instruments away from heat and rain to prevent damage and rusting respectively.
(v) Replace worn-out parts
(vi) Use instruments only for the intended functions
(vii) Let competent surveyor hand and use the instruments only or as he may direct.







IMPORTANCE OF FARM PLANNING

(i) It enables the farmer to make proper use of the land
(ii) It also ensures the proper sitting of certain buildings or structures in certain locations within the farmstead
(iii) It ensures the location of livestock buildings in relation to other farm buildings
(iv) It promotes the neatness and prevents pollution within the farmstead


HERE YOU WILL FIND EVERY AVAILABLE TOPICS ABOUT AGRICULTURAL SCIENCE AND BIOLOGY. AND THE LINKS TO THEIR VARIOUS SOURCES.
1. DEVELOPMENT OF AGRICULTURE
2. IMPORTANCE OF AGRICULTURE
3. SUBSISTENCE AGRICULTURE
4. COMMERCIAL AGRICULTURE
5. PROBLEM OF AGRICULTURAL DEVELOPMENT
6. SOLUTIONS TO POOR AGRICULTURAL DEVELOPMENT
7. AGRICULTURAL LAWS AND REFORMS
8. ROLES OF GOVERNMENT IN AGRICULTURAL DEVELOPMENT
9. AGRICULTURAL POLICIES
10. PROGRAM PLANNING IN AGRICULTURE
34.
FORESTRY
35. WILDLIFE CONSERVATION
37. TOPOGRAPHY
38. SOIL
39. BIOLOGICAL FACTORS
42. CLIMATIC FACTORS AFFECTING AGRICULTURAL PRODUCTION
43. TEMPERATURE
44. RAINFALL
45. WIND
46. SUNLIGHT
47. SOLAR RADIATION
48. BIOTIC FACTOR AND AGRICULTURAL PRODUCTION
49. PESTS
50. BIRDS
51. DISEASES
52. SOIL MICRO-ORGANISMS
53. SOIL PH
54. ROCK FORMATION
55. IGNEOUS ROCK
56. SEDIMENTARY ROCKS
57. METAMORPHIC
58. SOIL AND ITS FORMATION
59. FACTORS OF SOIL FORMATION
60. LIVING ORGANISM
61. PARENT MATERIALS
62. SOIL FORMATION TOPOGRAPHY
63. PROCESS OF SOIL FORMATION
64. WEATHERING
65. PHYSICAL WEATHERING
66. CHEMICAL WEATHERING
67. PRESSURE
68. WATER
73. BIOLOGICAL WEATHERING
75. SOIL WATER
80. SANDY SOIL CLAY SOIL LOAMY SOIL
83. SOIL TEXTURE
85. RETENTION OF WATER BY VARIOUS SOIL TYPES
soil improvement techniques
90. MACRO NUTRIENTS IN GENERAL
112. THE MAINTENANCE OF SOIL FERTILITY
113. CROP ROTATION
118. FARMING PRACTICES
119. BUSH BURNING CLEARING
121. FERTILIZER APPLICATION
122. ORGANIC MANURING FARM YARD MANURE
126. CROP ROTATION
133. FARM POWER AND MACHINERY
134. SOURCES OF FARM POWER
135. HUMAN SOURCE
149. PLOUGHS
142. FIELD MACHINES
157. PLANTERS
164. SIMPLE FARM TOOLS
165. AGRICULTURAL MECHANIZATION
166. THE CONCEPT OF MECHANIZATION





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