共同时代
发表于 2025-3-25 05:36:19
Soil chemistryd:.Mg is less effective bound than other bi- and trivalent cations, like Ca and Al, as adsorption series show (Sposito, 1989). Even in soils where the total magnesium content in the parent material is higher than the calcium content, the corresponding exchangeable fractions show a reversed order (Ha
ADOPT
发表于 2025-3-25 09:04:41
Tree nutritionnutrition is the nutrient-growth relationship (Mengel and Kirkby, 1987, p. 247). In detail, aspects like nutrient availability, fertilization, nutrient uptake, nutrient assimilation and functioning in plants are considered (Bussler and Marschner, 1975).
HARP
发表于 2025-3-25 14:41:15
Structural aspects of magnesium deficiency levels of both light and electron microscopy, and have partially proved to be of considerable diagnostic value (Thomson and Weier, 1962; Thomson et al., 1964; Bussler, 1964, 1981; Whatley, 1971; Hecht-Buchholz, 1972, 1983; Pissarek, 1973, 1979; Bangerth, 1979). In trees, however, similar studies ha
多山
发表于 2025-3-25 17:16:31
Fine-root developmentrent functions. They anchor the trees in the mineral soil and take up water and nutrients from the soil. Making the soil accessible, they change its physical and chemical properties. Moreover, they also store water and organic reserves, such as starch and lipids. Lastly, they are a ‘laboratory for b
地名表
发表于 2025-3-25 22:29:52
https://doi.org/10.1007/978-94-011-5402-4chemistry; ecosystem; ecosystems; forest; nutrition; soil
d-limonene
发表于 2025-3-26 01:22:45
Biogeochemistry of magnesium in forest ecosystems needles; deciduous species: intercostal chlorosis in leaves) have been observed in many regions of the world (Hüttl, 1991). In order to understand the differences in Mg supply between sites and temporal developments, a thorough analysis of the bio-geochemical cycling of this element and major processes is necessary.
必死
发表于 2025-3-26 06:32:48
Influence of magnesium supply on tree growthhe magnesium content of the sites with well-growing stands on higher variegated sandstone was 40–300 times as high as that of the poorly growing stands. He described the role of magnesium ‘as an essential activator within the nutrient cycles, especially in the roots’ and drew attention to its stimulating effects on leaf-substance production.
Obscure
发表于 2025-3-26 11:36:25
Causes of magnesium deficiency in forest ecosystemsMagnesium deficiency in forest ecosystems is usually studied on the basis of individual forest trees or stands of trees. This approach is very limited and can only be attributed to methodological difficulties in studying magnesium nutrition in soil micro-organisms.
暂时别动
发表于 2025-3-26 15:37:57
Tree nutritionnutrition is the nutrient-growth relationship (Mengel and Kirkby, 1987, p. 247). In detail, aspects like nutrient availability, fertilization, nutrient uptake, nutrient assimilation and functioning in plants are considered (Bussler and Marschner, 1975).
fertilizer
发表于 2025-3-26 18:08:21
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