Indian Journal of Agronomy
Year : 2001, Volume : 46, Issue : 1
First page : ( 107) Last page : ( 111)
Print ISSN : 0537-197X. Online ISSN : 0974-4460.

Effect of tillage and fertilizer on productivity of wheat (Triticum aestivum) under dry-seeded and transplanted rice conditions

Tripathi S.C., Chauhan D.S.

Directorate of Wheat Research, Karnal, Haryana, 132001

Received:  May,  2000.

Abstract

An experiment was conducted during winter seasons of 1993–94 and 1994–95 to study the effect of tillage and NPK level on productivity of wheat (Triticum aestivum L. emend. Fiori & Paol.) under dry-seeded and transplanted rice conditions. Combined analysis showed that wheat yield under dry-seeded rice plot (45.0 q/ha) was significantly higher (8.2%) than transplanted rice (41.3 q/ha). Zero tillage (46.2 q/ha) recorded significantly higher yield (13.2%) and its attributing parameters as compared with yield arid its component characters recorded under conventional tillage (40.1 q/ha). Application of 150:75:50 kg/ha (N:P:K) resulted in significantly higher grain yield (44.7 q/ha), 1,000-grain weight and spikes/m² than recommended dose of N:P:K (120:60:40 kg/ha) application (38.3 q/ha).

Interactions among rice seeding/transplanting methods, tillage practices and NPK level on wheat yield were significant. Under zero tillage, 25 and 50% higher dose of NPK application exhibited 7.5 and 6.3 q/ha more grain yield, respectively, than yield recorded with same level of NPK application under conventional tillage condition. Zero tillage resulted in 3 and 9 q more grain yield/ha, which was significantly higher compared to yield recorded with conventional tillage under dry seeded and transplanted rice respectively. In transplanted rice condition, under zero tillage, application of 25 and 50% higher dose of NPK recorded significantly higher grain yield (10–12 q/ha more) than conventional tillage. Under dry-seeded rice, conventional tillage with 25 to 50% higher dose of NPK application exhibited significantly higher yield than yields obtained under transplanted rice.

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Keywords

Zero tillage, Wheat, Nutrient and Rice seeding methods.

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