sundowning
发表于 2025-3-23 11:07:53
Lecture Notes in Computer Sciencesive cropping practices; and (3) new lands being brought into cultivation, particularly in the tropics. According to McKibben (1971), between 1948 and 1968 the average weight of tractors increased from 2.7 to 4.5 tons. At present, the average is 6.8 tons, with larger units weighing more than 22.4 tons.
聪明
发表于 2025-3-23 14:00:13
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高尔夫
发表于 2025-3-23 19:38:06
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Spina-Bifida
发表于 2025-3-24 00:57:06
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Spinous-Process
发表于 2025-3-24 02:36:03
Michela Iezzi,Carsten Maple,Andrea Leonettil data. Because of the dynamic nature of foliar composition, which is strongly influenced by aging processes as well as interactions affecting nutrient uptake and distribution, foliar diagnosis can become a complex exercise. The diagnosis and recommendation integrated system (DRIS) was developed by
下垂
发表于 2025-3-24 07:01:45
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modish
发表于 2025-3-24 12:21:42
0176-9340of the technology that is so successful for crop production in the developed countries cannot be utilized directly in the developing countries. Many of the pri978-1-4612-9112-1978-1-4612-4682-4Series ISSN 0176-9340
慎重
发表于 2025-3-24 18:41:02
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Jacket
发表于 2025-3-24 22:22:42
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Mangle
发表于 2025-3-25 03:01:03
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