Alley cropping system of farming






: This is a system which involves the growing of food crops in spaces between hedge-rows of trees or shrubs, which must undergo regular prunning every five or six weeks. The species of plants that can be used for alley cropping include: nitrogen fixing Gliricidia and Leucaena. The spacing of these plants is put at 4 metres between rows, to allow enough space for the growing of food crops. The soil nutrients are recycled through the decomposition of the organic residue.

ADVANTAGES OF ALLEY CROPPING

(i) The pruned leaves help in the feeding of ruminants in the dry season as fodder.
(ii) The branches or stems are cut and used as yam stake and firewood.
(iii) The shades provided by the plants help to suppress weed growth.
(iv) The pruned leaves also serve as mulching materials.
(v) The shrubs serve as a barrier when planted across the slope in the control of erosion.
(vi) Alley cropping serves as an alternative to bush fallowing.
(vii) The nitrogen fixing plants fix nitrogen for the food crops.





DISADVANTAGES OF ALLEY CROPPING

(i) The plants used can easily smother the growing food crops, if they are not pruned in time.
(ii) Nitrogen supply may be in short fall to the crops, if non-nitrogen fixing plants are used.
(iii) The system may be difficult to practice on a large scale.

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
36. FACTORS AFFECTING LAND AVAILABILITY
37. TOPOGRAPHY
38. SOIL
39. BIOLOGICAL FACTORS
40. SOCIAL-ECONOMIC FACTORS
41. ENVIRONMENTAL FACTORS AFFECTING AGRICULTURAL PRODUCTION
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
74. CHEMICAL AND BIOLOGICAL COMPOSITION OF THE SOIL
75. SOIL WATER
76. MICRO AND MACRO NUTRIENTS
77. SOIL MICRO ORGANISM
78. PROPERTIES OF SOIL
79. SOIL STRUCTURE
80. SANDY SOIL CLAY SOIL LOAMY SOIL
83. SOIL TEXTURE
84. IDENTIFICATION OF SOIL TYPES THROUGH EXPERIMENTS
85. RETENTION OF WATER BY VARIOUS SOIL TYPES
86. DETERMINATION OF SOIL PH REACTION
87. COLORIMETRIC DETERMINATION OF SOIL PH LEVEL
88. PH SOIL TEST
89. PLANT NUTRIENTS
soil improvement techniques
90. MACRO NUTRIENTS IN GENERAL
112. THE MAINTENANCE OF SOIL FERTILITY
113. CROP ROTATION
114. APPLICATION OF ORGANIC MANURES FARM YARD MANURE APPLICATION OF INORGANIC MANURE
117. LIMING
118. FARMING PRACTICES
119. BUSH BURNING CLEARING
121. FERTILIZER APPLICATION
122. ORGANIC MANURING FARM YARD MANURE
124. HUMUS
125. COMPOST
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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