abreast
发表于 2025-3-26 22:58:53
Cycling of Elements in the Biospherefew special cases such as lichens and some aerial plants, other required elements are obtained from the soil. One exception to this is the fixation of N. by some symbiotic associations (Chapt. II.2). Under most circumstances the availability of elements is limited, however, and so the death and deco
落叶剂
发表于 2025-3-27 04:12:20
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保存
发表于 2025-3-27 07:24:09
Dinitrogen-Fixing Symbioses with Legumes, Non-Legume Angiosperms and Associative Symbiosesy live in close proximity to such prokaryotes. On the other hand, N.-fixing organisms with a heterotrophic type of metabolism will need a good provision of organic substrates in order to obtain the energy for the highly energy-demanding process of N.-fixation. Both types of organisms can therefore b
Limousine
发表于 2025-3-27 11:07:16
Dinitrogen Fixation in Rhizosphere and Phyllosphere Associationsimportant. With the steadily increasing prices of nitrogen fertilizer however, other less perfect N.-fixing systems are becoming more and more important. Members of the family Gramineae are here of major interest because cereals are the most important food basis all over the world, especially in dev
欢笑
发表于 2025-3-27 14:19:21
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远地点
发表于 2025-3-27 21:01:06
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Pessary
发表于 2025-3-27 23:06:42
Reduction and Other Metabolic Reactions of Sulfateiformly distributed throughout the tissues and organs of higher plants and in the cells of plant–like microorganisms. Since sulfur is indispensable for plant growth and development, sulfur deficiency results in discoloration and abnormal growth of plant tissues. Sulfur deficiency influences nitrogen
愚蠢人
发表于 2025-3-28 03:51:57
Physiology and Metabolism of Phosphate and Its Compoundsorganisms. Thus it was first isolated as an element from that preeminently biological fluid, urine, by the Arabian alchemists in the 12th century and then by H. B. in 1669; while the next source to be discovered was bone, in 1770 (C. 1978). It is widely distributed in the Earth’s crust, where it com
大包裹
发表于 2025-3-28 09:55:27
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modish
发表于 2025-3-28 10:47:12
Interactions Between Nutrients in Higher Plantsient concentrations in plants and growth. Additionally where nutrient supply is neither deficient nor toxic for plant growth, interactions can be assessed by considering nutrient concentrations and contents within the plant.