visceral-fat
发表于 2025-3-27 00:13:55
http://reply.papertrans.cn/16/1552/155120/155120_31.png
onlooker
发表于 2025-3-27 02:51:24
Christiane Büdenbender-Kuklinskiquite common, especially in the tropics. People worked for relatively few hours each week, produced only what they required, collected fuel from the surrounding areas and played little part in the cash economy.
instate
发表于 2025-3-27 05:52:33
Ergebnisinterpretation und Diskussion,, so it would seem that a very high proportion of the world’s agriculture could be said to be engaged in mixed farming. This is not a very helpful view, however, and it is more useful to confine the term to situations where crop and livestock production are integrated.
中和
发表于 2025-3-27 12:27:41
https://doi.org/10.1007/978-3-658-40458-1ion, to serve amenity purposes (lawns, flowers, trees and shrubs) and to increase soil fertility (e.g. by adding organic matter from senescent leaves and roots or nitrogen from decaying legume nodules).
forecast
发表于 2025-3-27 14:33:11
https://doi.org/10.1007/978-3-658-40458-1that give rise to products of major importance are listed in Table 12.1. Many of them also produce valuable by-products such as offals, bone meal, dung (used for fuel and the construction of huts), hair, feathers and glue; and some of them are also used for transport and traction. In many parts of t
错
发表于 2025-3-27 19:43:57
Ein Ausblick in die Kaiserzeit, of many countries, however, live in towns and may not be greatly affected by changes in the appearance and smell of the countryside. Indeed, one effect of the development of agricultural systems has been a great reduction in the number of people . engaged in agriculture.
拱形大桥
发表于 2025-3-27 23:55:53
The Purposes of Agriculture, can be called agricultural, but this is not good enough if we are seriously interested in topics such as the role of science in agriculture, the role and importance of agriculture in the world and how agricultural efficiency can be improved.
Malleable
发表于 2025-3-28 05:21:41
The Contribution of Science,ole in their improvement. However, orthodox science subjects also contain relationships that can only be quantified in a statistical sense, so that prediction is concerned with an estimate of probability.
FIR
发表于 2025-3-28 07:19:30
http://reply.papertrans.cn/16/1552/155120/155120_39.png
尖叫
发表于 2025-3-28 14:14:38
Mixed Farming Systems,, so it would seem that a very high proportion of the world’s agriculture could be said to be engaged in mixed farming. This is not a very helpful view, however, and it is more useful to confine the term to situations where crop and livestock production are integrated.