Can Organic P Inputs Alleviate P Limitation Effects on Nutrient Uptake and Biological N2-Fixing Capacity of Hairy Vetch (Vicia villosa)?
نویسندگان
چکیده
Abstract Phosphorus (P) is a limiting nutrient in many agroecosystems and, apart from affecting plant growth, can also limit biological N 2 fixation (BNF) by leguminous plants. Thus, increasing P supply have positive effect on BNF particularly P-deficient soils. Here, we provide new insights into the response of hairy vetch ( Vicia villosa ), widely adopted as legume cover crop, to limitations, comparing effects inorganic (Pi) and organic (Po) growth capacity. This was achieved means greenhouse experiment which rhizobia-inoculated grown P-limited agricultural soil changes nitrogen (N) uptake, capacity, phosphatases activities were evaluated function Pi Po inputs, form orthophosphate or phytic acid, respectively. When compared conditions where primarily limited rather than directly due high costs symbiotic fixation, addition substantially enhanced (threefold), nodule formation (16-fold), acquisition (sixfold), efficiency (sevenfold). In contrast, even with highest dose Po, increase formation, acquisition, capacity (1.7, 3.5, 2.4 2.1-fold, respectively) much less expressed, indicating that could only minimally access sources over period order alleviate limitation under conditions. These findings suggest will not be able sufficient for improving inputs low-fertility cropping systems rely inputs.
منابع مشابه
Effects of Rhizobium Inoculation on Nitrogen Fixation and Growth of Leguminous Green Manure Crop Hairy Vetch (Vicia villosa Roth)
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ژورنال
عنوان ژورنال: Journal of Soil Science and Plant Nutrition
سال: 2022
ISSN: ['0718-9516', '0718-9508']
DOI: https://doi.org/10.1007/s42729-022-01012-6