Abdel wahab , M.A.S ; Manal, A. Attia ; Amira, H.M.Hassan and Amira, A. A.Salem.( 2017). Nitrate and Ammonium Balance in Fertilizing wheat Grown on Sand soilJ. Soil Sci. and Agric. Eng., Mansouro (Jniv., Vol. I (5): 183 - 188, 2017
Abstract: A held experiment was carried out on sandy soil of Agric. Res.^Station, at Ismailia Govemorate, Egypt lat. 30" 35' 41.9,,N, long. 32o l6'45.g3'e. ouring two successive winter se-asons of 201312014 and20l4l20l5 to studied the response of wheat plant (Sakha 93) to nitrogen fertilization in two forms r.e., ammonium-N and nitrate-N in different ratios at the rate of (100 ii;; I;:ii;-r;;oniur nitrut" (AN) as a source of NHa-N and No3-N and anhvdrous ammonia (AA) as a source of (NHa- N).The obtained results showed that'the most effective talance which gave the highest significant increases in all yield parameters was (12.5 rg uor-t t+ 87.5Kg NH4-N ) comparing with Applying AN (50 Kg NOr-N+ 50 Kg NHa-N) alone and the average of improvements weie ll.6Vo ,323o/o , 42.2 and 729 % for 1'0b0 grain weight , grain yield , harvest index and yield effrciency, respectively.In uJolti*, apptying (ioo rg N/fed as AA) result€d in slightly increase in straw and biological yields compared with (12.5 Kg No3-N + sz.i kg-NH.-N i uut it was not signihcant and recorded increase about 35.57o and 39.8% ,respectively. The results indicated that application 9f AN in combination with AA (12'5 Kg NO3-N / 87'5 Kg NH4-N) exhibited the best treatment in enhancing the uptaki of N,P, K and protein yield in wheat grains as it achieved 82'3yo 104'8%,84'9Yo and g2.3yo increase,respectively. Furthermore, increasing rate of NHa-N-as.anhydrous ammonia (100 kgN fed-l) in the absence of NO3-N gave the highest N and p uptake in straw by 6g.gW anA 72.6oh increase for both elements. While, the highest value of K uptakeinstrawhadin"r.ur"JLy si.lwwitncombinedtreatmentsofT5KgAN+90KgAA/fed(12'5KgNo3-N+87'5KgNHa- N) and significantly rd;;i the single AA alone.However, usage of ammonium nitrate fertilizer in combination with -hyd.our-ur*onia fertilizer had noticeable effect for lowering the quantity of ammonium nitrate fertilizer and improvement the -yKieeldy quantity and quality of wheat plant.
Keywords: (Ammonium nitrate, anhydrous ammonia, wheat and sand soil.)
