Journal of Kerbala for Agricultural Sciences, Agriculture of College, Kerbela University Journal of Kerbala for Agricultural Sciences 2309-5199 5 4 2018 09 01 Effect of adding (Pow humus and potassium nitrate) on some chemical properties of ( Solanum lycopersicum L.) fruits in protected conditions in Najaf Governorate. تأثیر اضافة السماد العضوی Pow humusونترات البوتاسیوم فی بعض الصفات الکیمیائیة لثمار المطاطة ). (Solanum lycopersicum Lفی ظروف محمیة فی محافظة النجف 41 56 160192 EN Razzak k.R. Aljebory Departent of plant production , Al-Kufa Technical Institute Al-Furat Al-Awsat Technical University Ali M.M. Altalal Departent of plant production , Al-Kufa Technical Institute Al-Furat Al-Awsat Technical University Journal Article 2019 05 08 An experiment was conducted on tomato plant cv. (Dombito hybrid ) during the season of 2016/2017  in unheated plastic houses at Al-Kufa Technical  Institute, the Governorate of Najaf. Experiment was included 16 interacted treatments composed four treatmentas (0, 30, 60 and 90 g.m2) of Humat potassium granules (Pow humus)(T) as a source of humat in concentration of (85%) and four treatments (0, 20, 40 and 60 kg. Dunum) of potassium(A) via using potassium  nitrate (KNO<strong>3</strong>) as a source of potassium in concentration (46.6%).  Potassium nitrate and potassium Humat were added at four periods to study its effect on chemical properties of tomato plant fruits which included percentage of: TSS, vitamin C and total acidity percenatge of fruit for four pickings (3,6 ,9 and 12) The experiment was performed according to the Split-Plot-Design with  three replicates, Means were compared according to Duncan's Multiple Range Test at the probability level of 0.05. Results showed that, the addition of potassium humat (T) and the addtion of potassium nitates (A) in all treatments were significantly increased in comparison with control treatment for all chemical characterstics of tamoto fruit and for all pickings. Results also cleared that interaction between (T) and (A) treatments were revealed a significant increas in (t4 a4) and (t4 a3) in comparsion with all treatments including the control treatment for all chemical characteristics and for all pickings, where the highest value was in the 12<strong>th</strong> picking of( 8.3 % and 28.9 mg.100 g.) of fruit for TSS and vitamin C. respectiviely, while control treatment for the same charcatreistcs gave the lowest value of 6.2 % and 11.7 mg.100 g. of fruit for TSS and vitamin C., respectiviely. Results of the  total acidity percentage were significantly variable in all pickings and significantly increased in coparsion with the control treatment.  اجریتتت التجربتت عمتتب تبتتمت الطلمطتت ال تتت ( )Dombitoاثتتتما الل (تت ( (2017/2016فتتح ااتتو البیتت ت<br />البلا(تیکی غیر اللوفأة فح اللعهو التقتح ک ف التج. <br />تضتلتت التجربت 16لعملمت لتوالمت لتلمت اربعت لعتمللات 90 60 30 0غت. - 2لت ابیبتمت وی لتمت<br />الب تم(تی pow humus )T)کل تور لمهی لیتب بترکیتز ( )% 85اربعت لعتمللات لت الب تم(تی (0( )A<br />60 40 20کغ. و تتتت) بم(تتتتعلما (تتتلمو تتتترات الب تم(تتتی بترکیتتز ( ,)%46.6اضتتتی کتتتا لتتت تتتتترات<br />الب تم(ی وی لمت الب تم(ی عمب اربع فترات لورا ( تمثیروم فح ال فمت الکیلیمئی لثلمر تبمت الطلمطت (TSS<br /> فیتملی Cالت(ب اللئ ی لمال ض الکمی ) للأربع جیتمت (.)12 9 6 3<br />تفذت التجرب ا(ب ت لی القطع اللتلق Split Plot Designبثلاث لکررات ق رتت اللعمللات ا(ب التبمر<br />وتک لتعوو الاو و عتو ل(ت ى ااتلما .0.05أظهرت التتمئج تف ق جلیع لعتمللات اضتمف وی لتمت الب تم(تی <br /> اضتمف تتترات الب تم(تتی لعت یتتم عمتتب لعملمتت اللقمرتتت فتتح ال تتفمت الکیلیمئیتت لمثلتتمر اللور (تت لجلیتتع الجتیتتمت<br />الأربع .<br />بیتت تتمئج توالا اضمف وی لمت الب تم(ی لع تترات الب تم(ی تف ق اللعملمتی ( )T4A3 T4A4لعت یم عمب<br />جلیع لعمللات التوالا بلم فیهم لعملم توالا اللقمرتت , لجلیتع ال تفمت الکیلیمئیت اللور (ت لمجتیتمت الأربعت <br />اذ بمغتت اعمتب قیلت لهتم فتح الجتیت التت( 28.9 %8.3 )12لمغت . 100غ. ثلتمر لکتا لت ( (T.S.Sلعتوا<br />فیتملی Cعمب الت الح, فیلم اعطت لعملم اللقمرت لم فمت تف(هم اقا القی التح بمغت عمب الت الح (% 6.2<br />11.7لمغت . ثلتمر) بیتلتم تبمیتتت لعت یتم تتتمئج الت(تب اللئ یت لمال ضت الکمیت فتح جلیتع الجیتتمت, تف قتت<br />لعت یم عمب لعملم اللقمرت https://jkas.uokerbala.edu.iq/article_160192_38c788b0ab2b996f814a344d70dd2968.pdf