Optimizing nutrient management for quality vine production in sweet potato
Abstract
An experiment was carried out at the Department of Agronomy, College of Agriculture, Vellayani, Kerala, India duringAugust 2024 to October 2024 to enhance the planting material production in sweet potato through nutrient managementin randomized block design and 3 replications. The study evaluated the effect of Potassium Salt of Active Phosphorus(PSAP) applied through soil drenching combined with different foliar fertilizers on vine production of sweet potato,variety Sree Arun in primary and secondary nursery. The treatments included foliar application of urea (1 % and 2 %),nano urea (0.2 % and 0.4 %) and nano DAP (0.2 % and 0.4 %) applied at 15 and 30 days after planting; and soil applicationof urea as per KAU POP (1.5 kg in primary nursery and 5 kg in secondary nursery for 100 m2 ). The revealed that vinelength, number of branches, number of leaves, vine yield and multiplication ratio were significantly higher with soilapplication of urea as per KAU POP (1.5 kg in primary nursery and 5 kg in secondary nursery for 100 m2).
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