Experimental Study on Reasonable Application Amount of Planting Fertilizer on Winter Wheat in Shijin Irrigation Area
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Abstract:
Reasonable fertilization is an important measure to achieve the objectives of high and stable production, low cost, and environmental protection. In this paper, an experimental study was conducted to compare and analyze the application amounts of nitrogen, phosphate, and potash fertilizers in the demonstration area of water saving transformation of Shijin irrigation area in Hebei province, which was used to determine the relationship between the application amount of fertilizer and yield of winter wheat. The results suggested that in order to ensure the yield of winter wheat above 6750 kg/hm2, the reasonable application amount is 210 kg/hm2 for nitrogen fertilizer (net quantity), 45～75 kg/hm2 for phosphate fertilizer (P2O5),and 22.5～45kg/hm2 for potash fertilizer (K2O) when the other conditions are relatively stable.
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