Blanch
发表于 2025-3-27 00:24:50
Alfred E. Harteminkll species have one or more high quality, color photographs. Three useful appendices have been included. The first is a glossary of botanical and ecological terms, the second is a glossary of chemistry terms an978-1-4939-5323-3978-1-4614-3912-7
多样
发表于 2025-3-27 03:20:14
Building an American Soil Survey,y was the first chief. He held a geological view on the survey, was successful in obtaining funds, but also had arguments with the leading soil researchers at the time including Eugene Hilgard, Franklin King, and Cyril Hopkins. He was succeeded by Curtis Marbut. In order to exchange experiences and
含沙射影
发表于 2025-3-27 08:09:48
First International Congress of Soil Science 1927,eople participated, and thirty-four stops were made, and twelve agricultural stations were visited. There were long discussions at the numerous soil profiles that were especially dug for the excursion or observed along road cuts. The congress and excursion were a success, forged a community of soil
即席
发表于 2025-3-27 11:13:49
From 1927 to 1960, and a Favor Returned,held in Congo in 1954. The congress was held in Kinshasa in 1954 had only 200 participants but had an impact on soil research in tropical countries. The sixth congress was held in Paris in 1956, had almost 800 attendees, of which 200 were from France, and over 40 American attendees.
两栖动物
发表于 2025-3-27 14:40:11
Chronicles and Progressions,rew up on the farm; they were all men, and all white. Emil Truog and Charles Kellogg exemplify this generation. They were friends and had profound influence on soil science. America is a big country, and its soil science is geographically and academically interwoven, with several centers in the Midw
incite
发表于 2025-3-27 20:58:20
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不能和解
发表于 2025-3-28 01:46:52
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cathartic
发表于 2025-3-28 03:13:44
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locus-ceruleus
发表于 2025-3-28 09:59:11
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propose
发表于 2025-3-28 13:48:26
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