Band versus Nursery Pot Application of Polyolefin-coated Fertilizer for Bell Peppers Grown in the Field

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Using a single basal application of controlled-release fertilizers for bell peppers is a perspective method, because by the elimination of top-dressings, labour and energy costs can be reduced. In this study, effects of band and nursery pot applications of polyolefin-coated fertilizers (POCF) on bell peppers grown in the field were compared at two different application rates, in 1997 and 1998. As a consequence of continuous nutrient supply, a good yield could be achieved in case of both application methods. Application methods significantly affected the generative/vegetative balance of the bell pepper plants, and thus the yield. Both years, early plant development and early yield were much better for the nursery pot application treatments than for the band application treatments, due to the better seedlings and to the quicker seedling establishment. Results of total yield were unambiguous for the two years. It was concluded that the nursery pot application method can be a very effective fertilization method for reducing labour and energy costs, but seedlings must be transplanted before the lag time of the sigmoid-type POCF ends. Using POCFs, 25% decrease in the amount of fertilizer applied did not decrease the yield of bell peppers.band applicationbell peppercontrolled-release fertilizernursery pot applicationpolyolefin-coated fertilizer
東北大学の論文