Title: Study on the Relationship between Rice Irrigation Quantity and Fertilizer Loss
Abstract: Nitrogenous fertilizer is one of the major fertilizer for crops.In paddy fields,only 40%~50% of the nitrogenous fertilizers are absorbed by crops,the others are remained in the environment and become the main pollutant sources.Therefore,to explore the reasonable management measures for water and fertilizers is of great importance for alleviating the effect of nitrogenous fertilizer on water environment.Through contrast experiment with different treatments of irrigation ways,fertilizing approach and amount,this paper analyzes nitrogen transfer and losses,rainfall utilization and irrigation quantity in different treatments.Finally,the reasonable irrigation ways,fertilizing approach and amount are recommended.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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