Days to Silking, Stover Yield and Soil Electrical Conductivity of Maize Hybrid -Babar As Affected by Nitrogen and Sulfur Applied in Different Combinations
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Days to Silking, Stover Yield and Soil Electrical Conductivity of Maize Hybrid -Babar As Affected by Nitrogen and Sulfur Applied in Different Combinations
Abstract
Maize is the 2nd important crop after wheat in Khyber Pakhtunkhwa. It needs greater amount of nutrients particularly nitrogen (N) and sulfur (S). Application of N and S at different growth stages enhances growth and yield of maize. Therefore, its effect in various ratios needs to be quantified on maize hybrid Babar. Four N levels (120, 160, 200, 240 kg ha-1), four S levels (20, 25, 30, 35 kg ha-1) applied in three ratios R1 (10:50:40), R2 (20:50:30) and R3 (30:50:20) i.e. 10, 20 and 30 % of required N and S were applied at sowing, 50% of required N and S were applied at V8, while 40, 30 and 20% of required N and S were applied at tasseling stage in R1, R2 and R3, ratios respectively. Combinations of all these treatments along with control were assessed in two year field experiments at Agronomy, Research Farm, The University of Agriculture Peshawar Pakistan. N, S and control vs. fertilized significantly affected days to silking (DTS), stover yield (SY) and soil electrical conductivity (EC) over the years, whereas days to 50% emergence (DTE) were non-significantly affected. Delayed DTS (66 days) were observed with application of 240 kg N ha-1, 30 kg S ha-1, 30:50:20 ratio of N and S application. Highest SY (7147 kg ha-1) was observed with application of 240 kg N ha-1, 35 kg S ha-1, R3 (30:50:20). Maximum soil EC (0.246 d S m-1) was observed with 240 kg N ha-1, 30 kg S ha-1, 30:50:20 ratio of N and S application. Application of 200 kg N ha-1, 35 kg S ha-1, R3 (30:50:20) performed better than other treatments and is recommended for obtaining higher yield of maize hybrid Babar in Peshawar valley.
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Muhammad Anees Afsar, Shad Khan Khalil, Imranuddin, Ahmad Khan, Iftikhar Hussain Khalil, 2017. Days to Silking, Stover Yield and Soil Electrical Conductivity of Maize Hybrid -Babar As Affected by Nitrogen and Sulfur Applied in Different Combinations. Int. J. Biosci., 10(3), 199-208.
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