Amer, M.M.; M.A. Aiad; and G.M.A. El-Sanat( 2016). Impact Of Different Soil Moisture Depletion, Nitrogen And Biofertilizer Application Levels On Yield-Water Productivity Of Wheat And Sunflower At North DeltaJournal Homepage: - www.journalijar.com ISSN: 2320-5407 Int. J. Adv. Res. 4(8), 2180-2191
Abstract: Two field trials were carried out at the experimental farm, Sakha Agricultural Research Station, Kafr El-Sheikh governorate during the two growing seasons 2014/ 2015 to investigate the effect of soil moisture depletion, nitrogen and biofertilizer application levels on yield water productivity of wheat and sunflower. The experiments were designed as split split plot with three replicates. The main plots were occupied by soil moisture depletion, while sub plots were devoted to nitrogen rates and sub sub plots were biofertilizer treatments. The main results can be summarized as follows: -Water applied and water consumptive use by wheat and sunflower were recorded highest values under irrigation I1.The highest values of water stored in the root zone, were recorded by irrigation I1 while water application efficiency was achieved under I2 either by wheat or sunflower crops. Water productivity and the amount of applied water were recorded highest values under irrigation I2 and N3. The net income was recorded the highest value with I2 under N3 and b3. While the economical efficiency was recorded the highest value (2.81) by I2 with N3 for wheat. On the other hand, Net income for sunflower seed and economical efficiency were recorded the highest value 5368 LFed. – 1 and (2.25) by under irrigation at 50% depletion of available soil moisture (I2) with 50kg Nfed.-1and b3. It could be concluded that application of biotol + phosphorene +75 kgNFed.-1 for wheat. While addition of biotol+ phosphorene +50 kgNFed.-1 for sunflower under irrigation at 50% depletion of available soil moisture could be economically used for production of wheat and sunflower as well as under water shortage without adverse effect on wheat and sunflower productivity
Keywords: (Biofertilizer, economical evaluation, moisture-depletion, nitrogen Sunflower, water relations, wheat.)
