处理
发表于 2025-3-25 03:41:25
Book 1986tection is no exception, but profits to some extent from two facts: (1) because of the potentially catastrophic nature of pest attack, governments often operate a supervisory crop protection service, the staff of which may be able to dispense some pest control advice; and (2) the staff of pesticide
设施
发表于 2025-3-25 11:02:52
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LITHE
发表于 2025-3-25 13:27:09
1431-1895 nments often operate a supervisory crop protection service, the staff of which may be able to dispense some pest control advice; and (2) the staff of pesticide 978-3-540-16242-1978-3-642-70992-0Series ISSN 1431-1895
手工艺品
发表于 2025-3-25 17:47:12
Crop Protection: The Role of the Agricultural Development and Advisory Service in England and Walesire the answers to new problems as they occur. These answers are not always available. When they are, the advisory services have a role to play in keeping farmers informed of the latest developments. When they are not, investigations must be initiated to solve outstanding problems. These roles in En
最高峰
发表于 2025-3-25 22:50:38
https://doi.org/10.1007/978-3-642-70992-0Pathogen; Plantation; air pollution; crop protection; environment; fungi; growth; insects; pest management; p
SPURN
发表于 2025-3-26 00:43:37
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格言
发表于 2025-3-26 06:01:13
The Place of Pest and Disease Management in the Agricultural Economy, and Its Legal Frameworky control aspects should be approached on a communal basis. One farmer taking the risk of an epidemic in his crop may endanger others in his region, and this conveys on crop protection a status not shared by any other discipline in crop production.
Archipelago
发表于 2025-3-26 10:03:16
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Parallel
发表于 2025-3-26 12:56:15
Farmers’ Perceptions of Pest and Disease Controltated by tradition, and by his character (such as proneness to risk aversion or innate optimism or pessimism), the information he is given, the resources at his disposal, and the availability of means of control.
叙述
发表于 2025-3-26 19:19:57
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