Abstract
AbstractThe decrease in yield productivity of carrots on nitrogen and phosphate depleted soil could be compensated by 6‐BA sprays. In nitrogen or phosphorus deficient plants the concentration of 2‐iP and 2‐iPA are lower than in the control and an increase could be observed following 6‐BA applications. Nitrogen or phosphorus uptake of deficient plants was virtually not affected by 6‐BA application. Consequently dry matter production per unit nutrient taken up by the plants (nutrient efficiency ratio) was increased as compared to the optimally with nitrogen and phosphate supplied control or the deficient plants.
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