Title: Effects of Different Fertilizations on Maize Nutrient Uptake in Hemi-dry-land
Abstract: In this paper, a field experiment was conducted in Gansu to study effects of applying maize different nitrogen and phosphorus fertilizer on maize N, P and K nutrient uptake and yield. The main results were as follows. Within 300-600 kg hm-2 of N fertilizer, application of N increased N, P and K uptake in maize, but the treatment of N3P2 had a more pronounced effect, which increased by 13.8%, 14.4% and 23.2% in N, P and K total uptake and increased by 0.649, 0.399 and 0.152 per cent on the harvest index of N, P and K. Applying N, P and K could improve the yield of maize, which increased by 8.2%-15.5%. The effect of nitrogen was better than phosphorus fertilizer. The amount of N, P and K required for the production of 100 kg maize yield were 2.56 kg, 0.77 kg and 2.53 kg. The rational ratio of N: P2O5: K2O absorbed by maize was 3.33:1:3.29.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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Cited By Count: 1
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