Interaction effect of Spacing and Nutrient Levels on N, P and K Content and Uptake of Isabgol Plant (Planatago ovata forsk) under Eastern Dry Zone of Karnataka
M. Eragegowda *
Department of Plantation, Spices, Medicinal and Aromatic Crops, UHS, Bagalkot, Karnataka-587104, India.
A. P. Mallikarjuna Gowda
Krishi Vigyan Kendra, Hadonahalli, Doddaballapur taluk, Bengaluru Rural District, Karnataka-561205, India.
T. N. Pushpa
Department of Plantation, Spices, Medicinal and Aromatic Crops, UHS, Bagalkot, Karnataka-587104, India.
B. N. Maruthiprasad
Department of Plantation, Spices, Medicinal and Aromatic Crops, UHS, Bagalkot, Karnataka-587104, India.
M. N. Thimmegowda
Department of Agronomy, DLAP, UAS, GKVK, Bengaluru, Karnataka-560065, India.
G. R. Smitha
Department of Floriculture and Medicibal Crops, IIHR, Bengaluru, Karnataka-560089, India.
*Author to whom correspondence should be addressed.
Abstract
The experiment was laid out in a Factorial Randomized Block Design with sixteen treatments and replicated three times. There was no significant difference among the treatments with respect to nitrogen, phosphorus and potassium content of leaves under different levels of planting geometry and interaction effect. But different nutrient levels had significant influence in the N, P and K content in isabgol plant. Higher N (3.76%), P (0.7%) and K (3.59 %) content in the leaves was observed when plants supplied with 75 % RDF (37.5:18.75:22.50 + 7.5 t FYM). The maximum uptake of N (229.11 kg /ha), P (43.98 kg /ha) and K (218.46 kg /ha) was found at row spacing of 22.5 cm, which was significantly superior to other spacing levels.Nutrients had significantly influenced the N, P and K uptake. The 75 % RDF (37.5:18.75:22.50 + 7.5 t FYM) level recorded maximum uptake of N (166.36 kg /ha), P (32.13 kg /ha) and K (158.39 kg /ha), which was significantly superior to all other nutrient levels.Among the interactions, 22.5 cm row spacing + 75 % RDF (37.5:18.75:22.50 + 7.5 t FYM) recorded significantly maximum N, P and K uptake (252.05, 49.31 and 238.85 kg/ha respectively).
Where, RDF= recommended dose of fertlizer, FYM = Farm yard manure
Keywords: Isabgol, Plantago ovata, spacing, nutrients