再生水滴灌对作物品质和产量的影响研究--以菠菜为例

Study on Influence of Reclaimed Water Drip Irrigation on Yield and Quality of Plant——Taking the Spinach as an Example

再生水滴灌是解决水资源短缺的有效途径之一。以地下水滴灌为对照,分析研究了不同浓度再生水滴灌对菠菜品质和产量的影响。结果表明:70%再生水滴灌条件下,追肥量为传统追肥量的30%情况下,菠菜品质最好;50%再生水滴灌条件下,追肥量为传统追肥量的50%情况下,菠菜产量最高。此外,追施大于50%传统施肥量的氮素可降低菠菜干物质、Vc、有机酸及可溶性糖含量,但却显著提高了硝酸盐含量。

Reclaimed water drip irrigation is one of the effective measures to deal with the scarcity of water resources.Through taking irrigation with groundwater as contrast treatment,the influence of reclaimed water drip irrigation on quality and yield of spinach is studied in this paper.The results indicate that the highest quality can be obtained under the condition of 70percent of reclaimed water and 30percent of traditional fertilizing amount,while the highest yield can be obtained under the condition of 50percent of reclaimed water and 50percent of traditional fertilizing amount.Nitrogen more than 30percent of traditional fertilizing amount can not only reduce the dry matter,Vc,organic acids and soluble sugar content of spinach,but also significantly increase the nitrate content.