Response of Wheat Planted with Different Techniques to Foliar of Potassium Nitrate, Water and Extra Irrigation
Asian Resonance(P: ISSN No. 0976 - 8602 RNI No.UPENG/2012/42622 VOL.-IV,
ISSUE-III, July-2015 E: ISSN No. 2349 - 9443)
Abstract
Senior Agronomist (Retd.), Deptt.of Agronomy, Punjab Agricultural University, Ludhiana
J. S. Kang
Senior Agronomist Deptt.of Agronomy, College of Agriculture (PAU), Ludhiana
Maninder Kaur
Assistant Professor, Deptt.of Krishi Vigyan Kendra, College of Agriculture (PAU), Fatehgarh Sahib
Field studies were conducted on wheat at the Punjab Agricultural University, Ludhiana during 2005-06 to 2008-09. The results revealed that wheat sown at 25 November gave the highest grain yield than 10 December sowing. In both the experiments, statistically same grain yield was obtained with different planting methods. In the first experiment, wheat sown with zero tillage and conventional tillage with crop residue gave higher average grain yield. The foliar application of KNO3 (1%) during anthesis, extra irrigation and spray of irrigation water during post anthesis gave higher grain yield but in the first experiment, average yield was higher than recommended practices of irrigation. Sowing at 25 November with conventional tillage without and with mulching produced significantly same but significantly higher grain yield than other treatment combinations. The 25 November sowing with zero tillage in standing stubbles after removal of loose straw and one foliar spray of KNO3 (1%) was at par with conventional tillage without mulching + two foliar spray of KNO3 (1%) during anthesis, conventional tillage without mulching with one additional irrigation, conventional tillage with mulching + one additional irrigation and conventional tillage with mulching + recommended irrigation. The sowing with zero tillage in standing stubbles and one foliar spray of KNO3 (1%) gave the highest grain yield which was at par with conventional tillage without mulching + two foliar spray of KNO3 (1%) and conventional tillage without mulching + one additional irrigation. The magnitude of temperature changes the maturation of the crop resulting in small and shrunken grains during 2005-06 and 2007-08. The bulk density (0-15 cm depth) at harvest was slightly more and infiltration rate was higher under zero tillage under zero tillage.
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