Correct Answer: A. Thinning

Explanation

Thinning is the removal of some or parts of plants, to make room for the growth of others but does not involve the cutting of the whole tree.

Correct Answer: B. maize

Correct Answer: A. 14 - 28 days

Explanation

(a) The following are factors to be considered when siting a fish pond: (i) quantity and quality of water supply (ii) type of soil (iii) type and density of vegetation (iv) topography of the area (v) proximity to market (vi) climatic conditions

(b) (i) Pond fertilization: Frequent application of fertilizers should be done to ensure efficient supply of aquatic plant food in the pond. It stimulates the growth of phytoplanktons which are major suppliers of protein and carbohydrates needed for the rapid growth of the fish.

(ii) Supplementary feeding: The natural food of planktons should be supplemented with artificial food e.g. groundnut cake, soyabean cake, maggot, etc.

(iii) Weed control: Weeds should be removed from the pond in order other to ensure adequate supply of dissolved oxygen and ensure hygienic medium for the fish. Weed control improves penetration of sunlight for increased photosynthesis by phytoplanktons.

(iv) Desilting: Removal of silts from the bottom of the pond will make the water clear so that adequate water is taken in. It also ensures adequate oxygen supply. It reduces turbidity of pond water and accumulation of ante feed. It is to maintain proper depth of fish pond

(v) Eradication of predators: Carnivores such as snakes, frogs, crabs and wild fish should be removed from the pond. for maximum yield.

(vi) Test cropping: This is don to check the growth rate of the fish to detect any outbreak of dose to know the food conversion ratio of fish stocked.

(vii) Liming: Liming helps to correct pond activity and controls leaches. It enhances fertilizer effectiveness.

(viii) Oxygen management /Aeration: This could be achieved through stirring water and allow the water splash into the pond. Weed control also improves aeration.

(ix) Disease control: With good management, fish disease can be prevented. If infection occurs it should be treated with appropriate drug such as copper sulphate, bromex, malachite green, potassium pamanganate.

(x) Maintenance of water level: All sources of leakages should be block while the pond water should be brought to its required level.

Correct Answer: B. quartz

Correct Answer: C. do not withstand harsh conditions

Correct Answer: B. Irrigation

Explanation

Irrigation is an example of agricultural technology. It involves the artificial application of water to agricultural fields to supplement natural rainfall. Irrigation systems can range from simple methods like surface irrigation to more advanced techniques like drip irrigation or sprinkler systems.

Explanation

a) Distinguish between the terms loan and subsidy as used in agricultural financing: Loan is a repayable credit with or without interest, either in cash or kind, given to farmers. Whereas, subsidy is a non, repayable financial aid in the form of lump sums, or as regular allowances paid by the government or a society to meet part of the cost of certain inputs and services.

(b)(i) Definition of the term supply: Supply is the total quantity of commodities which producers are willing to offer for sale at alternative prices, over a given period of time.

(ii) Supply curve for Cocoa

(iii) Explanation of the relationship between supply and price of cocoa: The lower the price of cocoa the lower the quantity of cocoa the farmers are willing to supply. OR The higher the price of cocoa the higher the quantity of cocoa the farmers are willing to supply.

(c) Advantages and disadvantages of farm and home visits as a teaching method in agricultural extension work

Advantages (i) The extension worker gains first hand knowledge of actual farm situations. (ii) Personal visit develops goodwill, confidence and mutual trust between farmer and extension agent. (iii) It gives opportunity to farmers to present peculiar problems and for the extension agent to answer specific questions and grant specific requests. (iv) It helps extension workers to single out local leaders.

Disadvantages: (i) Personal visits are expensive and time-consuming, (ii) Only a few farmers are reached at a time. (iii) There is the tendency to visit some farmers more often than others, thus arousing resentment in the farming community.

(d) Characteristics of agricultural produce in relation to marketing: (i) Seasonality Perishability (iii) Bulkiness (iv) Large number of (ii) producers. (v) Some agricultural produce cannot be consumed in the form in which they are produced.

Correct Answer: C. 33.33%

Correct Answer: A. early in the morning and late in the evening

Explanation

Transplanting seedlings is a critical step in the cultivation of crops. To ensure successful transplanting and minimize stress on the seedlings, it is recommended to do it early in the morning or late in the evening.