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- Title
MAINTAINING SOIL FERTILITY AND ENVIRONMENTAL PROTECTION BY APPLYING OPTIMUM MINERAL FERTILIZATION.
- Authors
Irina, Calciu; Andrei, Antal; Olga, Vizitiu
- Abstract
This paper presents a fertilization plan carried out at farm level as an useful tool for efficient use of mineral fertilizers on agricultural lands in order to prevent or reduce water bodies pollution with nitrates. The case study is accomplished within a farm located in Mostistea watershed. The fertilization plan is obtained by using best practices for efficiently nitrogen use at farm level. Different indicators were needed: expected crop yield at farm level, soil indicators and coefficients of nitrogen use. As much the difference between applied nitrogen and exported nitrogen is lower within the farm, as much the nitrogen use efficiency is higher. For example, in case of wheat, the optimum economic nitrogen dose recommended for obtaining 7000 kg/ha is 118 kg/ha of nitrogen. This dose is correlated with the optimum soil nitrogen supply, plant nitrogen need and the lower risk of nitrogen losses in water bodies.
- Subjects
SOIL fertility; ENVIRONMENTAL protection; DEHYDRATION; NITROGEN in water; WATER pollution
- Publication
Analele Universitatii din Craiova. Seria Biologie, Horticultura, Tehnologia Prelucrarii Produselor Agricole, Ingineria Mediului, 2020, Vol 25, p291
- ISSN
1453-1275
- Publication type
Article