Nahed, A. M. E. Aiad, A. E. A. Abd El All and M. A. A. Esmaeil( 2015). Influence Of Integrated Nutrition Management Under Drip Irrigation On
Sandy Soil Properties And Maize Productivity
Egypt . J. of Appl. Sci., 30 (5) 2015 259-277
Abstract: A field experiment was conducted on sandy soil at El- Bostan Agriculture Research Station Farm, South El Tahrir Region, Behara Governorate under drip irrigation system to study the effect of integrated nutrient management (INM) on sandy soil properties and maize productivity (Zea mays L, var single cross 168) during two successive summer seasons of 2012 and 2013.The treatments were O – Organic manure: compost at the rate 0 and 10 ton fed -1 (O0 and O1) B – Biohumen : bio fertilizer containing N- fixing, P- dissolving and K dissolving bacteria at the rate 0 and 5 L fed-1 (B0 and B1) . The nitrogen fixing bacteria are Azospirillium braselence + A zotobacter chroccocum combined with phosphorus dissolving bacteria i.e., phosphorus dissolving bacteria of Bacillus megatherium and Bacillus ciculance as potassium dissolving bacteria M - mineral fertilizers at the three rate (100 %, 75 % and 50 %)(M1, M2 and M3) from recommended doses (RD) of N, P and K (120 kg N fed-1 , 200 kg P2O5 fed-1 and 50 kg K2O fed -1) . The results indicated that, 1) Applied of integrated organic, bio and mineral fertilizers positively affect chemical and physical properties of the soil where values of EC (dS m-1), pH along with CaCO3 content and BD were decreased compare to the control treatment (100% NPK) and increased in OM contents and FC, WP and AW % compare to the control treatment (100% NPK) 2- the different treatments under study O, B, M and their interaction highly significant effect on biological, grain , stover yields and weight of 1O0 grains of maize plant .3- the highest values, 9.95, 5.84, 4.11 and 32.48 of biological, grain , stover yields and weight of 1O0 grains respectively were obtained with the treatment (organic + bio + 100 % RD of NPK) followed by the treatment (organic + bio + 75 % RD of NPK) ,while the lowest values ,4.62, 2.80, 1.82 and 25.48 respectively were obtained with treatment 50 % RD NPK 4- integrated organic+ bio fertilizers + 50 % of mineral fertilizers gave value approach from 100 % RD mineral alone, this mean that integrated compost 10 ton fed–1(organic) + biohumen 5 L fed –1 (bio fertilizers) can replacing 50 % from recommended doses of NPK (mineral fertilizer) . The same trend was obviously achieved for nutrients (NPK) uptake of maize grain and stover
Keywords: (Compost, Maize, Integrated nutrition management, Bio, mineral fertilizers.)
