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Articolul urmator |
1175 16 |
Ultima descărcare din IBN: 2023-10-22 16:56 |
Căutarea după subiecte similare conform CZU |
633.34:631.46:631.82 (1) |
Прочие кормовые растения (120) |
Почвоведение. Почвенные исследования (715) |
Удобрения. Стимуляция роста растений. Внесение удобрений. Ростовые вещества (377) |
SM ISO690:2012 DARABAN, Oxana, BOZGAN, Iana, EMNOVA, Ecaterina, TOMA, Simion. Influenţa îngrăşămintelor minerale şi a regimului hidric asupra activităţii biologice a solului rizosferic al plantelor de soia
. In: Ştiinţa Agricolă, 2013, nr. 2, pp. 3-7. ISSN 1857-0003. |
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Ştiinţa Agricolă | ||||||
Numărul 2 / 2013 / ISSN 1857-0003 /ISSNe 2587-3202 | ||||||
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CZU: 633.34:631.46:631.82 | ||||||
Pag. 3-7 | ||||||
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Rezumat | ||||||
The aim of the current study was to assess the extent to which soil mineral fertilization, starter dose, influences the biological potential of soybean rhizosphere under suboptimal soil water content. The experiment was established with 4 replications, in plastic pots (5 kg of absolutely dry soil, carbonate chernozem). The main macro-elements N50P100 (mg/kg) were applied to the soil in the form of Ca(NO3)2 and P2O5 (KH2PO4). Two soil moisture regimes were examined: 70% and 35% of total soil water capacity. At the budding-flowering stage a
reduced soil moisture during 17 days was maintained. Two soybean varieties were subjects for study: Aura (A) and Clavera (C), differing in the degree of drought tolerance (C>A). Control soil without plants was also considered. It was determined that soil biological activity depends on the nutritional and water conditions but not as pronouncedly as plant biomass does. The functional activity of the microbiota (BSR – basal soil respiration) recorded higher values at a lower water content. This could indicate that bacterial community expends additional
energy to perform and maintain its vital processes. The biological potential of Aura variety rhizospheric soil was
higher compared to the Clavera one and to the soil without plants. |
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Cuvinte-cheie Glycine max, Îngrăşăminte minerale, Umiditatea solului, respirația solului, Sol rizosferic, Biomasă microbiană, Coeficient metabolic, hidroliză |
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