TAILIEUCHUNG - Effect of irrigation and nitrogen levels on nutrient uptake, water use efficiency and productivity of onion (Allium cepa L.) in himachal Pradesh

Field experiments were conducted during 2015-16 and 2016-17 to study the effect of irrigation and N levels on nutrient uptake, water use efficiency and productivity of onion (Allium cepa L.) in Himachal Pradesh. Twelve treatment combinations comprising four irrigation level . 4 cm irrigation at IW/CPE ratio (I1), (I2), (I3), (I4) and three N levels . 75 (N1), 100 (N2) and 125 per cent (N3) of recommended dose of N, were replicated thrice in a Randomized Block Design. Nutrient uptake and bulb yield were at par under I1 and I2 levels and both these levels exhibited higher WUE, ( and kg ha-1mm-1 ) was recorded under I1 followed by I2 ( and kg ha1mm-1 ) with ( and cm) and ( and cm) of total water requirement during both the years of study, hence I2 was considered as efficient irrigation level. Among N levels, N3 was found to be optimum as it recorded significantly higher productivity of onion crop over N2 and N1 levels. Pooled analysis of the data showed that the combinations of I1N3 and I2N3 gave significantly higher bulb yield ( q ha-1 and q ha-1 ) and were noted to be and per cent higher over I4N1. The study led to a conclusion that the combination of irrigation level I2 (4 cm irrigation at IW/CPE) with N3 level (125% of RD of N) (I2N3) could be the best for maximising yield of onion with efficient use of scarce irrigation water in Himachal Pradesh. | Effect of irrigation and nitrogen levels on nutrient uptake, water use efficiency and productivity of onion (Allium cepa L.) in himachal Pradesh

• Sinh học
• Irrigation and nitrogen levels
• Nutrient uptake
• Crop productivity
• Water requirement
• Water use efficiency
• Irrigation regimes
• Nitrogen levels and summer sesame
• Summer sesame
• Economics of summer sesame
• Influence of irrigation regimes
• Nitrogen levels on growth
• Water productivity
• Nitrogen levels
• Nitrogen levels on nitrogen content
• Water productivity of clusterbean
• IGNP stage II
• Growth parameters
• Rabi rice
• Varied nitrogen levels
• Drying irrigation
• Oryza sativa L
• Method of water management
• Water productivity of rice
• Aerobic rice
• Field water use efficiency
• West central table land zone
• Nitrogen levels on productivity
• Biological yield
• Bulb yield
• Number of leaves
• Leaf length
• Equatorial diameter and polar diameter
• Cotton (Gossypium hirsutum L )
• Different levels of irrigation
• Nitrogen on growth
• Yield of Bt cotton
• Bt cotton
• Irrigation schedules
• Influenced by preceding legumes
• Performance of rabi sorghum
• Rabi sorghum
• Hybrid mustard
• Yield attributes
• Influenced by irrigation
• Yield of Indian Mustard
• Dry weight
• Nitrogen level
• Number of irrigation on growth
• Yield of wheat
• Available nitrogen
• Organic carbon
• Plum trees
• Prunus salicina
• Nitrogen fertilization
• Nitrogen on fruit set
• Air quality
• Microbiological air quality contamination
• Rabi drill fennel
• Drip irrigation along with nitrogen levels
• Nitrogen application
• Coastal areas
• Irrigation levels
• Production potential of sorghum
• Sorghum (Sorghum bicolor L
• Seed cotton yield
• Different tillage depth
• Response of cotton
• Late sown wheat
• Western zone of Haryana
• Prediction of growth
• Yield of late sown wheat
• Pistachio Pistacia vera L
• Drip Irrigation
• Pistachio nut fertigation
• Pistachio trees
• Pistachio orchards
• β glucan content
• Durum wheat grain β glucan
• Quality characteristics
• High β glucan content
• Wheat grain
• Water soluble polysaccharide component