祖传
发表于 2025-3-23 13:39:53
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喷出
发表于 2025-3-23 15:22:06
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爱花花儿愤怒
发表于 2025-3-23 21:03:25
0176-9340 iation, and by wind and water transport of soil materials, later deposited in deltas and loessial planes. Soil undergoes further transformations over time and provides a habitat for biological life and a base for the development of civilizations. Soil is dynamic - always changing as a result of the
Harridan
发表于 2025-3-23 23:17:48
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荣幸
发表于 2025-3-24 04:56:25
https://doi.org/10.1007/978-3-642-60597-0phasize use of soil survey data is particularly timely because of a change in the type of questions being asked by users of soil survey data and because of the rapid advances in information technology. Questions have become more specific, and quantitative answers are increasingly required.
BURSA
发表于 2025-3-24 10:31:42
Use of Gypsum on Soils: A Review, soils and crops than previously acknowledged. The purpose of this review is to document both current practices and potential new uses of gypsum in agriculture, in order to establish the state of the art in current gypsum use, and to point out needed research in this important area.
hieroglyphic
发表于 2025-3-24 12:44:37
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Sputum
发表于 2025-3-24 18:10:51
Conference proceedings 19931st edition metals is rarely simple, and it is particularly obscure at deficiency levels, when even the least unavailable trace metal ions are held on “specific sites” whose character is difficult to establish or define, rather than in identifiable salts (Lindsay, 1979).
来就得意
发表于 2025-3-24 21:31:39
Book 1989d by wind and water transport of soil materials, later deposited in deltas and loessial planes. Soil undergoes further transformations over time and provides a habitat for biological life and a base for the development of civilizations. Soil is dynamic - always changing as a result of the forces of
Hangar
发表于 2025-3-25 02:18:07
The Use of Extractants in Studies on Trace Metals in Soils, Sewage Sludges, and Sludge-Treated Soil metals is rarely simple, and it is particularly obscure at deficiency levels, when even the least unavailable trace metal ions are held on “specific sites” whose character is difficult to establish or define, rather than in identifiable salts (Lindsay, 1979).