2024, Vol. 7, Issue 2, Part C

author(s)
Ranjitha TH, Rajesh AM, Raghunatha Reddy RL, Balaji S Kulkarni, TH Shankarappa, Yathindra HA, Divya KR and Jayalaxmi Pawar

abstract
Marigold is one of the commercial loose flower crops which belongs to Asteraceae family. It is popular for its ease of cultivation and wide adaptability to varied agro climatic conditions. Rapid industrialization and urbanization has led to the increase in the volume of the waste water generation. Therefore, utilization of the sewage water for the irrigation could be the alternative way for this. As the sewage water also provides the nutrients and the other trace elements. The present work done at College of Horticulture; Kolar situated in the Eastern dry agro climatic Zone. Due to scattered rainfall pattern and depletion of ground water, irrigation is becoming highly challenging in these areas. In this regard use of sewage water in horticulture crops with proper scientific study will helpful to solve the growing problem. The experimental details include the African marigold (Maxima Yellow, Arka Bangara 2) plants were potted under polyhouse condition during rabi season and laid out in Factorial Randomized Complete Block Design (FRCBD) with 2 factors and 10 treatments with three replications. It was noted that the highest soil EC at harvesting stage was recorded in T₅. Among all the treatments 100 percent untreated sewage water (T₂) treatment added highest soil and plant nitrogen, phosphorus and potassium content. Also, highest soil and plant calcium, magnesium and sulphur content and also the soil and plant micronutrients like zinc, iron, copper and manganese content was also found highest with the application of 100 percent untreated sewage water. The maximum count of total bacteria and maximum total fungi count was also found in (T₂) 100 percent untreated sewage. Among varieties maximum nutrients content observed in Maxima Yellow.