Aerobic rice in uplands with micro sprinkler irrigation

P. P. Shahanila, P. Prameela, K. P. Visalakshi, P. S. John

Abstract


A field experiment was conducted at Kerala Agricultural University campus, Thrissur, during February to June 2014 to study the response of upland aerobic rice to sprinkler irrigation. The trial was laid out in Split Plot Design with three replications. Treatments included four irrigation levels; sprinkler irrigation at 75 per cent pan evaporation, 100 per cent pan evaporation, 125 per cent pan evaporation and life saving irrigation at 5cm depth at required stages and three fertilizer doses; 90:45:45 N, P2O5, K2O kg ha-1, 70:35:35 N, P2O5, K2O kg ha-1 and 60:30:30 N, P2O5, K2O kg ha-1. Sprinkler irrigation at 125 per cent pan evaporation resulted in significantly higher plant height, tiller number per hill, panicles per hill, grains per panicle, grain and straw yield. The highest field water use efficiency (FWUE) of 9.11 kg ha-1 mm-1 was recorded at the lower irrigation level of 75 per cent pan evaporation. The fertilizer levels failed to show significant influence on grain yield.

Keywords


Aerobic rice, Fertilizers, Micro sprinkler irrigation, Upland rice.

Full Text:

PDF

Refbacks

  • There are currently no refbacks.


A KAU publication [CODEN: JTAGEI; ISSN 0971-636X; eISSN 0973-5399]