uncertain
发表于 2025-3-23 10:06:46
Integrated Pest Management,in with efficient insect and weed management, rotations, irrigation, cultivation, harvesting, storage, marketing, and every other sensible practice that the farmer finds necessary to get the most profitable yields. Management of diseases is part of a system called integrated pest management (IPM).
Engaging
发表于 2025-3-23 14:51:00
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逢迎白雪
发表于 2025-3-23 20:38:21
History of Plant Pathology,eligious leaders who, because of their own ignorance, held similar beliefs and it also helped preserve the tradition of the infallibility of the Church. People blamed diseases on evil spirits, displeasure of the gods, or unfavorable positions of the stars or moons.
曲解
发表于 2025-3-23 22:40:20
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debouch
发表于 2025-3-24 05:44:15
biological organisms of the biosphere, about the physical and chemical processes that shaped and continue to change our planet. The cataloging, retrieval, dissemination, and use of this new information along with the continued development of new computer technology provide some of the most challeng
Lasting
发表于 2025-3-24 07:38:45
Causes of Plant Diseases, Each type of plant pathogen is discussed briefly in this chapter. More detailed information is given in the chapters dealing with the individual diseases. The relative sizes of various types of pathogens are illustrated in Fig. 2.1.
Cabg318
发表于 2025-3-24 13:40:18
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南极
发表于 2025-3-24 18:31:07
Diseases Caused by Parasitic Plants,rs, such as mistletoe, have chlorophyll but no roots and depend on their host for minerals and water. Some other parasitic seed plants, such as dodder, having neither chlorophyll nor true roots, depend entirely on their host for their existence.
难解
发表于 2025-3-24 22:58:29
Diseases Caused by Soilborne Fungi,ten root diseases caused by soilborne fungi may not be noticed until extensive damage has been done, because many of the early symptoms occur only on roots. The representative diseases discussed in this chapter are summarized in Table 12.1.
brassy
发表于 2025-3-25 01:41:57
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