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Efficacité de l'utilisation de l'azote dans les sols sableux à l'aide de la technique du traceur 15N
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ISBN10: 6209345107
ISBN13: 9786209345104
Publisher: Editions Notre Savoir
Published: Nov 28 2025
Pages: 104
Weight: 0.33
Height: 0.25 Width: 6.00 Depth: 9.00
Language: French
ISBN13: 9786209345104
Publisher: Editions Notre Savoir
Published: Nov 28 2025
Pages: 104
Weight: 0.33
Height: 0.25 Width: 6.00 Depth: 9.00
Language: French
L'effet du régime hydrique, du taux d'application d'engrais azotés et du mode d'application ont été étudiés afin d'identifier la combinaison la plus appropriée et la plus efficace des variables étudiées ci-dessus, qui permette d'obtenir un rendement satisfaisant en épinards et de minimiser l'utilisation d'engrais azotés chimiques, afin de préserver l'environnement et de réaliser d'importantes économies d'eau. Les besoins en eau et les engrais azotés sont deux facteurs qui influent notablement sur la croissance et le rendement des cultures d'épinards. Ainsi, tout retard dans l'irrigation, l'éclaircissage ou un approvisionnement insuffisant en eau et en engrais azotés aurait un effet négatif sur la croissance et le rendement. De même, un apport fréquent ou excessif d'eau et d'engrais azotés entraînerait une augmentation des pertes d'eau et d'engrais azotés. Il est donc important de déterminer la quantité adéquate d'irrigation et d'engrais azotés nécessaire pour maximiser la croissance et la qualité des cultures d'épinards. Le système d'irrigation goutte à goutte, associé à un régime hydrique approprié et à de bonnes pratiques d'application d'engrais, est considéré comme une pratique de gestion utile qui pourrait être appliquée pour améliorer la productivité des sols sableux.
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