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Instantaneous Evaluation Of Nitrate, Ammonium, Phosphorus And Potassium Pools In Greenhouse Soils In Antalya Province Of Turkey, Ali Coskan, Atılgan Atilgan, Hasan Oz, Erdinc Isler
Instantaneous Evaluation Of Nitrate, Ammonium, Phosphorus And Potassium Pools In Greenhouse Soils In Antalya Province Of Turkey, Ali Coskan, Atılgan Atilgan, Hasan Oz, Erdinc Isler
Hasan OZ
Nitrogen, phosphorus and potassium are the main components determining yield and quality of intensive agricultural production particularly at undercover production, however; excessive fertilization has some environmental and economical consequences. The aim of this study was to investigate surplus amount of fertilizers at the harvest stage of the greenhouse soils in Antalya Province. Therefore, soil samples were collected from 57 representative greenhouses to determine their mineral nitrogen, available phosphorus and potassium along with organic matter contents. The results revealed that soil from 30% of greenhouses had nitrate values of 30 to 35 kg da-1. Ammonium values were considerably low compared to …
Effects Of Different Irrigation Programs On Yield And Quality Parameters Of Eggplant (Solanum Melongena L.) Under Greenhouse Conditions, Ulas Senyigit, Abdullah Kadayifci, Özge Uysal, Hasan Oz, Atılgan Atilgan
Effects Of Different Irrigation Programs On Yield And Quality Parameters Of Eggplant (Solanum Melongena L.) Under Greenhouse Conditions, Ulas Senyigit, Abdullah Kadayifci, Özge Uysal, Hasan Oz, Atılgan Atilgan
Hasan OZ
This study was carried out to determine the effects of different irrigation programs on yield and quality parameters of eggplant under greenhouse conditions, using Class A pan evaporation calculations and different plant-pan coefficients. Irrigation water was applied through drip irrigation method twice a week during the growing period. Irrigation treatments consisted of five plant-pan coefficients (S1: kcp = nonirrigation, S2: kcp = 0.50, S3: kcp = 0.75, S4: kcp = 1.00 and S5: kcp = 1.25). The amount of irrigation water ranged between 95.2 and 238.7 mm among the treatments. Evapotranspiration (ET) values varied from 93.1 to 466.3 mm for …