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EFFECT OF PLANT DENSITY AND NUTRIENT SPRAY ON THE YIELD ATTRIBUTES AND YIELD OF DIRECT SOWN AND POLYBAG SEEDLING PLANTED HYBRID COTTON

Article Id: ARCC2576 | Page : 174 - 177
Citation :- EFFECT OF PLANT DENSITY AND NUTRIENT SPRAY ON THE YIELD ATTRIBUTES AND YIELD OF DIRECT SOWN AND POLYBAG SEEDLING PLANTED HYBRID COTTON.Agricultural Science Digest.2008.(28):174 - 177
D. Rajakumar and S. Gurumurthy*
Address : Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore-641 045, India

Abstract

A field experiment was conducted to study the influence of two planting methods (direct sowing and polybag seedling planting), three plant densities (120 × 60, 120 × 75 and 120 × 90 cm), magnesium and micronutrients spray on yield attributes and yield of hybrid cotton TCHB-213. The lowest plant density of 9,259 plants ha-1 (T4) recorded the highest number of bolls per plant (32.87) compared to high plant density of 13,888 plants ha-1 (T2), which registered 30.78 bolls per plant. But the same was reduced significantly in wider spacing (31.74 m-2) than the closer spacing (43.97 m-2) when compared on unit area basis. Direct seeding (T1) recorded a boll setting percentage of 30.29 as against 33.43 per cent under planting through polybag seedlings (T2). The lowest boll weight of 4.13 was recorded under direct seeding with wider spacing without the application of magnesium and micronutrients (T1). Foliar application of magnesium and micronutrients through both the planting techniques under all plant densities recorded higher boll production, boll setting, boll weight and ultimately the seed cotton yield. Among the various treatment combinations, planting with polybag seedlings at a population of 13,888 plants ha-1 with the application of magnesium and micronutrients (T6) produced higher seed cotton yield (22.53 q ha-1).

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