A field study is done to analyze the effects of water reuse for irrigation with a focus on seed germination, crop morphology, crop yield, nutritional values of edible parts, fertilizer reduction, and benefit–cost ratio. For the study, three different crops, Lablab bean, tomato, and chilli, are considered and every crop type is irrigated with groundwater (GW), diluted treated wastewater (DTWW), and treated wastewater (TWW). The study reveals that the DTWW is optimal for seed germination. Crops irrigated with the TWW have the highest morphological characteristics. Crop yield is highest for the TWW-irrigated Lablab bean and DTWW-irrigated tomato. Chilli remains unproductive until the end due to thermal stress. Nutritional values of the edible parts of the DTWW- and TWW-irrigated crops are lower than the GW-irrigated crops. Crops irrigated with the DTWW and TWW are applied with the reduced quantities of N, P and K fertilizers. Indeed, even when the dosages are low those crops are able to produce higher yields than the GW-irrigated crops which are applied with full fertilization. As the crop yield is high and fertilizer cost is less, the benefit–cost ratio is higher for water reuse irrigation than the GW irrigation.

进行了实地研究，分析水回用对灌溉的影响，重点是种子发芽、作物形态、作物产量、可食部分的营养价值、肥料减少和效益成本比。在这项研究中，考虑了三种不同的作物：扁豆、番茄和辣椒，每种作物类型都用地下水 (GW)、稀释处理废水 (DTWW) 和处理废水 (TWW) 进行灌溉。研究表明，DTWW 最适合种子发芽。用 TWW 灌溉的作物具有最高的形态特征。TWW 灌溉的扁豆和 DTWW 灌溉的番茄的作物产量最高。由于热应力，辣椒直到最后仍然没有生产力。DTWW 和 TWW 灌溉作物的可食用部分的营养价值低于 GW 灌溉作物。使用 DTWW 和 TWW 灌溉的作物施用减少量的 N、P 和 K 肥料。事实上，即使剂量较低，这些作物也能比完全施肥的 GW 灌溉作物产生更高的产量。由于作物产量高、肥料成本低，中水回用灌溉的效益成本比高于GW灌溉。