Use of thermodynamic parameters of q−i isotherms to evaluate of k−availability in some Egyptian soils
المؤلفون المشاركون
Mutawalli, Shawqi Muhammad
al-Mansi, Muhammad
Muhammad, Ayman
Imad al-Din, Haidy
Majdi, Muhammad
المصدر
Journal of Productivity and Development
العدد
المجلد 26، العدد 4 (31 أكتوبر/تشرين الأول 2021)، ص ص. 825-841، 17ص.
الناشر
جامعة الزقازيق كلية التكنولوجيا و التنمية
تاريخ النشر
2021-10-31
دولة النشر
مصر
عدد الصفحات
17
التخصصات الرئيسية
الموضوعات
الملخص EN
Quantity−intensity (Q/I) isotherms were applied to evaluate the availability of K+ in four different Egyptian soils.
Wheat plant was used as an indicator to achieve this goal.
After wheat sowing, soils were fertilized by K2SO4 at different rates of 0, 50, 100 and 150% of wheat's fertilizer recommendation.
The obtained results showed that increasing added K+ concentrations led to increase the activity ratio of K+ (ARK0) and corresponding changes in labile K+ (K) at equilibrium.
The equilibrium activity ratio of K+ (ARK0) varied between 2.88 − 15.01 × 10−3 (mol L−1)0.5 in initial stage and 1.39 − 17.31 × 10−3(mol L−1 )0.5 in the last stage.
The labile K+ (KL) fraction ranged from 0.047 − 0.456 and 0.02 − 0.45 cmol kg−1 before sowing and at harvesting time of wheat plant, respectively.
The potential buffering capacities of K+ (PBCK) fluctuated from 16.3 − 30.4 and 11.9 − 29.9 cmol kg−1 (mol L−1) −0.5 before sowing and at harvesting stage of wheat plant.
The free energy of K+ exchange (−ΔG) ranged from −3.37 to −2.42 (kcal.
mol−1) prior to cultivation to reach −3.79 to −2.34 (kcal.
mol−1) at the end of cultivation period.
In general, Silt, pH, EC, OM, Soluble K, NH4OAcK and HNO3K exhibited substantial correlations with KL, PBCK, ARK0, KG and ΔG, whereas pH had inverse correlation with mentioned parameters, except KG.
Furthermore, a substantial correlation was observed between thermodynamic characteristics of K extracted by H2O, 1 M NH4OAc and 1M HNO3.
Conclusively: from these results it could be concluded that, significant correlation of the tested thermodynamic parameters with physicochemical soil characteristics.
Thus, the study contributed significantly to practical K+ management by providing important information on K+ dynamics in typical Egyptian soils.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Imad al-Din, Haidy& Mutawalli, Shawqi Muhammad& al-Mansi, Muhammad& Majdi, Muhammad& Muhammad, Ayman. 2021. Use of thermodynamic parameters of q−i isotherms to evaluate of k−availability in some Egyptian soils. Journal of Productivity and Development،Vol. 26, no. 4, pp.825-841.
https://search.emarefa.net/detail/BIM-1294931
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Imad al-Din, Haidy…[et al.]. Use of thermodynamic parameters of q−i isotherms to evaluate of k−availability in some Egyptian soils. Journal of Productivity and Development Vol. 26, no. 4 (2021), pp.825-841.
https://search.emarefa.net/detail/BIM-1294931
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Imad al-Din, Haidy& Mutawalli, Shawqi Muhammad& al-Mansi, Muhammad& Majdi, Muhammad& Muhammad, Ayman. Use of thermodynamic parameters of q−i isotherms to evaluate of k−availability in some Egyptian soils. Journal of Productivity and Development. 2021. Vol. 26, no. 4, pp.825-841.
https://search.emarefa.net/detail/BIM-1294931
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
-
رقم السجل
BIM-1294931
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر