Arrobas, M.; Raimundo, S.; Conceição, N.; Moutinho-Pereira, J.; Correia, C.M.; Rodrigues, M.Â. On Sandy, Boron-Poor Soils, Liming Induced Severe Boron Deficiency and Drastically Reduced the Dry Matter Yield of Young Olive Trees. Plants2023, 12, 4161.
Arrobas, M.; Raimundo, S.; Conceição, N.; Moutinho-Pereira, J.; Correia, C.M.; Rodrigues, M.Â. On Sandy, Boron-Poor Soils, Liming Induced Severe Boron Deficiency and Drastically Reduced the Dry Matter Yield of Young Olive Trees. Plants 2023, 12, 4161.
Arrobas, M.; Raimundo, S.; Conceição, N.; Moutinho-Pereira, J.; Correia, C.M.; Rodrigues, M.Â. On Sandy, Boron-Poor Soils, Liming Induced Severe Boron Deficiency and Drastically Reduced the Dry Matter Yield of Young Olive Trees. Plants2023, 12, 4161.
Arrobas, M.; Raimundo, S.; Conceição, N.; Moutinho-Pereira, J.; Correia, C.M.; Rodrigues, M.Â. On Sandy, Boron-Poor Soils, Liming Induced Severe Boron Deficiency and Drastically Reduced the Dry Matter Yield of Young Olive Trees. Plants 2023, 12, 4161.
Abstract
In the Northeast of Portugal, like in many parts of the world, most soils are acidic, which may hamper crop productivity. This study presents the findings of a factorial experiment involving three factors: i) soil type [schist (Sch) and granite (Gra)]; ii) cultivars [Cobrançosa (Cob) and Arbequina (Arb)]; and iii) fertilizer treatments [liming (CaCO3) plus Mg (LMg), P application (+P), B application (+B), all fertilizing materials combined (Con+), and an untreated control (Con-)]. Dry matter yield (DMY) did not show significant differences between cultivars, but plants grown in schist soil exhibited significantly higher biomass compared to those in granite soil. Among the treatments, +B and Con+ resulted in the highest DMY (50.8 and 47.2 g pot-1, respectively), followed by +P (34.3 g pot-1) and Con- (28.6 g pot-1). Treatment LMg yielded significantly lower values (15.6 g pot-1) than Con-. LMg raised the pH above 7 (7.36), leading to a severe B deficiency. Although Con+ also raised the pH above 7 (7.48), it ranked among the most productive treatments for providing B. Therefore, when applying lime to B-poor sandy soils, moderate rates are advised to avoid inducing a B deficiency. Additionally, it seems prudent to apply B after lime application.
Biology and Life Sciences, Agricultural Science and Agronomy
Copyright:
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