CONTINUOUS CROPPINGThis is a system by which involves the growing of the same type of crops, on the same piece of land every year. The system is normally practiced where there is scarcity of land and dense population, or where environmental conditions limit the type of crops that can be cultivated in that area. Crops such as millet- can only be grown in some parts of Northern Nigeria. In this system, a lot has to be done by the farmer to improve the fertility of the soil, by the addition of organic and inorganic manure.
Advantages of continuous cropping(i) in continuous cropping, A lot of time, energy and money is saved, since the farmer does not have a clear new farmland every year.
(ii) continuous cropping helps to economize the use of farmland.
Disadvantages of continuous cropping(i) Continuous cropping encourages soil erosion.
(ii) continuous cropping also leads to rapid loss of soil fertility
(iii) continuous cropping encourages low yield.
(iv) A lot of money is expended in buying fertilizers to improve the fertility of the soil in continuous cropping.
(v) continuous cropping encourages the build-up of pests, diseases and weeds in the farm.
(vi) continuous cropping encourages the deterioration of the physical and chemical conditions of the soil.
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
35. WILDLIFE CONSERVATION
36. FACTORS AFFECTING LAND AVAILABILITY
39. BIOLOGICAL FACTORS
40. SOCIAL-ECONOMIC FACTORS
41. ENVIRONMENTAL FACTORS AFFECTING AGRICULTURAL PRODUCTION
42. CLIMATIC FACTORS AFFECTING AGRICULTURAL PRODUCTION
47. SOLAR RADIATION
48. BIOTIC FACTOR AND AGRICULTURAL PRODUCTION
52. SOIL MICRO-ORGANISMS
74. CHEMICAL AND BIOLOGICAL COMPOSITION OF THE SOIL
75. SOIL WATER
76. MICRO AND MACRO NUTRIENTS
77. SOIL MICRO ORGANISM
78. PROPERTIES OF SOIL
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
164. SIMPLE FARM TOOLS
165. AGRICULTURAL MECHANIZATION
166. THE CONCEPT OF MECHANIZATION