JAMB Agricultural Science Past Questions & Answers - Page 7

The primary purpose of a pasture in agriculture is to provide grazing animals with forage. A pasture is an area of land specifically designated for the purpose of growing and providing vegetation for livestock to graze on. It consists of various grasses, legumes, and other suitable plants that are palatable and nutritious for animals.

Freehold is a form of land ownership in which an individual holds complete ownership and control over a piece of land. The individual has the right to use, sell, or transfer the land as they wish, subject to legal regulations. This form of ownership is often associated with privately owned properties, where the land is owned outright and not subject to any time-limited agreements.

The primary purpose of mixed cropping in agriculture is to reduce the risk of crop failure. Mixed cropping involves growing two or more different crops together in the same field. This practice helps farmers mitigate the potential negative impacts of pests, diseases, adverse weather conditions, and market fluctuations that can affect a single crop. 

One of the potential disadvantages of agricultural extension is the lack of access to extension services in remote areas. Agricultural extension services aim to provide information, education, and support to farmers, enabling them to adopt improved farming practices and enhance their productivity. However, in remote or geographically isolated regions, the availability of extension services may be limited or non-existent.

The primary characteristic of weeds in agriculture is that they compete with crops for resources. Weeds are unwanted plants that grow in agricultural fields and compete with cultivated crops for sunlight, water, nutrients, and space. They can reduce crop yields by depriving crops of essential resources and sometimes release chemicals that inhibit crop growth.