A comprehensive list of Agricultural science questions with answers to help you prepare for JAMB, WAEC, NECO, Post UTME exams.
What are the main differences between monocot and dicot plants?
Monocots have parallel leaf veins, while dicots have branched leaf veins
Monocots have flower parts in multiples of three, while dicots have flower parts in multiples of four or five
All of the above
Monocots have fibrous root systems, while dicots have taproot systems
Correct answer is C
Monocots and dicots are differentiated by several characteristics. Monocots have parallel leaf veins, while dicots have branched leaf veins. This is due to the different growth patterns of the two types of plants. Monocots have flower parts in multiples of three, while dicots have flower parts in multiples of four or five. This is due to the different evolutionary paths of the two types of plants. Monocots have fibrous root systems, while dicots have taproot systems. This is due to the different needs of the two types of plants, with monocots typically being grasses and cereals that benefit from a fibrous root system, and dicots being broad-leaved plants that benefit from a taproot system.
The following are necessary operations in maize cultivation except?
Weeding
Thinning
Nursery practices
Fertilizer application
Correct answer is C
Maize is cultivated by direct seeding, hence, nursery practice is not needed in maize cultivation.
The main aim of mechanized agriculture is
Reducing maturation time for crops
Decreasing number of pests
Having a large land area for cultivation
Reducing cost of production
Correct answer is C
The major objective of mechanized agriculture is to have a large land area for cultivation.
Which of the following farm practices is not mechanized?
Planting
Fertilizer application
Bush clearing
Transplanting
Correct answer is D
Transplanting is not a mechanized farm practice, i.e it does not involve the use of machinery.
What is soil conservation, and why is it important in agriculture?
Soil conservation involves the removal of topsoil for agricultural purposes
Soil conservation refers to the preservation and sustainable management of soil resources
Soil conservation aims to maximize crop yields through intensive farming practices
Soil conservation focuses on increasing soil fertility through the use of chemical fertilizers
Correct answer is B
Soil conservation is the practice of protecting and managing the soil to prevent erosion, degradation, and loss of fertility. It involves implementing various techniques and practices to ensure the long-term sustainability and productivity of agricultural lands.
Which of the following surveying equipment is used for measuring angles during farm surveying?
Theodolite
Measuring tape
Gunter's chain
Abney level
Correct answer is A
Theodolite is a basic surveying instrument which is used to measure horizontal and vertical angles.
Which of the following is the correct order for land preparation?
Land clearing → ploughing → harrowing → ridging
Land clearing → harrowing → ploughing → ridging
Land clearing → ploughing → ridging → harrowing
Land clearing → harrowing → ridging → ploughing
Correct answer is A
Land clearing
↓
Ploughing
↓
Harrowing
↓
Ridging
What is subsistence agriculture?
Export-oriented agricultural production
Intensive farming using advanced technology
Farming for self-sufficiency and survival
Large-scale commercial farming
Correct answer is C
Subsistence agriculture refers to a type of farming where the primary purpose is to meet the food and basic needs of a family or community. It is characterized by small-scale farming practices with limited use of modern technology and resources. The produce from subsistence agriculture is primarily consumed by the farmer and their family, with little or no surplus for sale.
Which of the following best describes agricultural marketing?
The process of producing agricultural goods
The transportation of agricultural products to consumers
The storage and preservation of agricultural goods
The promotion and selling of agricultural products
Correct answer is D
Agricultural marketing refers to the activities involved in the promotion and selling of agricultural products. It encompasses various processes, such as market research, product promotion, pricing, distribution, and sales.
Which of the following is a common problem in agricultural economics and extension?
Inadequate market infrastructure
Excessive government regulations
Overreliance on chemical inputs
Lack of access to modern technology
Correct answer is D
Agricultural economics and extension deal with the application of economic methods to optimizing the decisions made by agricultural producers. A common problem in this field is the lack of access to modern technology. This can hinder the efficiency and productivity of agricultural practices. Excessive government regulations, overreliance on chemical inputs, and inadequate market infrastructure can also be challenges in agriculture, but they are not specific to agricultural economics and extension.
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