Hussein A.H.A

Publications (2)0 Total impact

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  Article: Impact of Sewage Sludge as Organic Manure on Some Soil Properties, Growth, Yield and Nutrient Contents of Cucumber Crop

  Hussein A.H.A
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  ABSTRACT: The present study was conducted in two field experiments with two soil types (sandy and calcareous soils) under greenhouse conditions at the Agricultural and Veterinary Training and Research Station of KFU, Al-Hassa area. The objective of the present study was to investigate the effects of different rates of sludge on some soil properties, growth, yield and nutrients status of leaves and fruits of cucumber plant. The experimental soils have sandy and sandy loam textures. All experimental plots (6 m² area) cultivated with cucumber. Soil application of sewage sludge, at rates of 0 (control, with no sewage sludge), 25, 50, 75, 100 and 125 t ha^-1 was used in the present study. Sewage sludge was mixed with top 30 cm surface layer of each plot, two month before planting of cucumber. The experiments were conducted in a randomized complete block design with 3 replications. The experimental plots received the same agricultural practices as recommended. The obtained results revealed that application of sewage sludge significantly altered the chemical properties of soil. Soil Electrical Conductivity (EC), soluble cations (calcium, magnesium, sodium and potassium), soluble anions (chloride and sulphate), available phosphorous and micronutrients (iron, manganese, copper and zinc) and heavy metals (cadmium, cobalt, lead and nickel) were increased in sandy and calcareous soils with increasing sewage sludge application rate. While, the soil reaction (pH) and HCO₃¯ contents were decreased as a result of sludge application. Also, application of sewage sludge improved physical properties of sandy and calcareous soils. It decreased the soil bulk density and increased saturation water content, porosity and organic matter content. Application of sewage sludge improved leaves and fruit contents of macro- and microelements of cucumber plant grown in sandy and calcareous soils. Also, the number of fruits and yield of cucumber were increased with increasing the rates of sewage sludge application. The highest level of application of sludge has a highest effect on the yield of cucumber plants. Generally, application of sewage sludge by mixing it with top 30 cm soil layer was found to be more effective in improving soil physical, chemical and fertility conditions. Moreover, using of sewage sludge as organic manure is considered as a source of nutrients that required for plant which led to increase the growth and the yield of cucumber crop.
  Journal of Applied Sciences. 01/2009;
• Article: Response of Manzanillo Olive ( Olea europaea , L.) Cultivar to Irrigation Regime and Potassium Fertigation under Tabouk Conditions, Saudi Arabia

  Hussein A.H.A
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  ABSTRACT: The present study was carried out during 2004 and 2005 growing seasons on 7 years old Manzanillo olive (Olea europaea, L.) trees grown in Tabouk (36 24` 51.4" E and 28 34` 55.0" N, 765 m ASL), Kingdom of Saudi Arabia (KSA) with drip irrigation system. The aim of the present investigation is to study the effect of irrigation regime and potassium fertigation on vegetative growth, leaf water contents, total chlorophyll, olive fruit and oil yield, fruit quality and nutrients content of Manzanillo olive trees grown under Tabouk conditions. The trees received irrigation water at 25 and 35 m3/tree/year. Potassium fertigation was applied at rates of 0, 200, 300 and 400 mg L-1 K in irrigation water in the form of potassium sulphate (48% K2O). The obtained results revealed that high level of K fertigation (400 mg L-1) improved the vegetative growth parameters, leaf water content and olive fruit and oil yields. Potassium fertigation at high level improved the fruit quality and nutrients contents of leaves and fruits, especially at high level of irrigation water (35 m3/tree/year). Generally, it can be concluded that applying water at 35 m3/tree/year and K fertigation at 400 mg L-1 under drip irrigation system in Tabouk enhanced vegetative growth, fruit and oil yield and improved water and nutrients contents for Manzanillo olive trees.
  Journal of Agronomy. 01/2008;