THE IMPACT OF LIQUID BIO-GAS FERTILIZER ON FENNEL CROP PRODUCTIVITY AND OIL CONTENT UNDER DIFFERENT LEVELS OF IRRIGATION WATER

Abstract

Two experiments were carried out at test and research station of Tractors and Farm machinery at Sabahia, Alexandria Governorate, Egypt during 2016/2017 season to study the effect of liquid Biogas fertilizer on vegetative growth, chemical composition and essential oil% on fennel plants. The remaining mixture of the process of fermentation of organic and exogenous waste from the fermentation is called the name of the biogas fertilizer. This fertilizer can be dried and converted into organic liquid or dry fertilizer and used in the fertilization of various agricultural crops very efficiently and because of its reliable price and dispense with mineral fertilizers which are expensive and harmful tohumans.The experimental design was split plot with three replicates. The main plots were conducted for two rates of liquid biogas fertilizer (15) and (25) m3 / fed with Three levels of concentration of biogas fertilizerlevel 1 (10%), Level 2 (20%) and Level 3 (30%) the subplots were occupied by three levels of irrigation (50%, 75% and 100%)from the maximum irrigation rate of 4000m3/fed . The main results could be summarized as follows (1) Application biogas liquid fertilizer level at 30% (25m3/Fed) gave the highest mean values of all studied characters under the third level of water irrigation (50%).Essential oil% and majors compound % for the Foeniculum vulgare tested in the study. The results also showed that the highest value for water use efficiency (WUE) was 0.56 for the treatment (Z2Q3I3) and the highest value for nitrogen fertilizer use efficiency (NUE)was 14.5 for the treatment (Z1Q1I3).However, all traits under study increased significantly due to biogas liquid fertilizer treatments over the control treatment