ตัวอย่าง agriculture

• Most of the agriculture practiced here is short-term rice and manioc followed by 4- 7 y of fallow.

• Working within the principles of organic agriculture and thus acknowledging the values of the system is also an important context for research.

• Attempting to write a global geographical perspective on organic agriculture is a major challenge.

• We assume that there are constant returns to scale in agriculture.

• We expect returns from agriculture to be greater and fisheries returns to be less under the alternate management plans as compared with the base model.

• Secondly, the wildlife has to compete with the surrounding agriculture for the habitat.

• Innovations in agriculture tend to promote deforestation, although in the case of land-augmenting technical change this result is ambiguous.

• Most of the fundamental changes of which agriculture is but a symptom took place while people were still basically foragers.

• Our models demonstrate that organic agriculture can contribute substantially to a more sustainable system of food production.

• The primary sector (agriculture, fisheries, forestry, and mining) tends to be more resource-intensive than either the secondary (industry) or tertiary (services) sectors.

• Prospects and problems pertaining to the management of arbuscular mycorrhizae in agriculture.

• These factors include prices and production costs, crop yields, fish productivity and the suitability of land for agriculture or fish production.

• This difference reflects the purposeful selection of producers by the organic contracting company, especially during the introduction of organic agriculture to the region.

• This paper builds upon the theoretical framework from the precision irrigation literature to study the roles of information, institutions, and price incentives in irrigated agriculture.

• Today their number is decreasing as a result of urban development and the modernization of agriculture.