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Arafa, M., El-Howeity, M. (2017). EFFECT OF HUMIC ACID, PLANT GROWTH PROMOTING AND METHODS OF APPLICATION ON TWO POTATOES (Solanum tuberosum L.) CULTIVAR GROWN UNDER SANDY SOIL CONDITION. Menoufia Journal of Soil Science, 2(2), 91-104. doi: 10.21608/mjss.2017.176043
M.M. Arafa; M.A. El-Howeity. "EFFECT OF HUMIC ACID, PLANT GROWTH PROMOTING AND METHODS OF APPLICATION ON TWO POTATOES (Solanum tuberosum L.) CULTIVAR GROWN UNDER SANDY SOIL CONDITION". Menoufia Journal of Soil Science, 2, 2, 2017, 91-104. doi: 10.21608/mjss.2017.176043
Arafa, M., El-Howeity, M. (2017). 'EFFECT OF HUMIC ACID, PLANT GROWTH PROMOTING AND METHODS OF APPLICATION ON TWO POTATOES (Solanum tuberosum L.) CULTIVAR GROWN UNDER SANDY SOIL CONDITION', Menoufia Journal of Soil Science, 2(2), pp. 91-104. doi: 10.21608/mjss.2017.176043
Arafa, M., El-Howeity, M. EFFECT OF HUMIC ACID, PLANT GROWTH PROMOTING AND METHODS OF APPLICATION ON TWO POTATOES (Solanum tuberosum L.) CULTIVAR GROWN UNDER SANDY SOIL CONDITION. Menoufia Journal of Soil Science, 2017; 2(2): 91-104. doi: 10.21608/mjss.2017.176043

EFFECT OF HUMIC ACID, PLANT GROWTH PROMOTING AND METHODS OF APPLICATION ON TWO POTATOES (Solanum tuberosum L.) CULTIVAR GROWN UNDER SANDY SOIL CONDITION

Article 5, Volume 2, Issue 2, March and April 2017, Page 91-104  XML PDF (663.83 K)
Document Type: original papers
DOI: 10.21608/mjss.2017.176043
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Authors
M.M. Arafa1; M.A. El-Howeity2
1Department of Sustainable Development of Environment and Management of its Projects
2Department of Evaluation of Natural Resources and Planning for their Development
Abstract
Two field experiments were carried out during two successive seasons of 2014 and 2015, to study the effect of different seven treatments of bio and organic fertilizers (control, Tricoderma, PGPR, Humic acid, Tri. + PGPR, Tri. + Humic acid and Tri. + PGPR + Humic acid ) adding as two types of application as coating and foliar application on vegetative growth characteristics, yield and its components as well as chemical composition ( N,  P, K ,Fe, Mn and Zn) for two cvs. of potato.
Results showed that the application of PGPR or Tri. +Humic acid significantly increased vegetative growth, yield and its components as well as chemical composition of tubers in both seasons compared with the control. Also, soil application as coating significantly increased all parameters of studied in both seasons compared to foliar application. In addition, cv. Red Sun significantly increasing all parameter than cv. Sophie. In addition, the interaction between the cv. Red Sun with coating application gave the highest values of all parameters. Also, interaction between cv. Red Sun with PGPR, Tri.+Humic acid and humic acid significantly increased all parameters of studied during both seasons. In this respect, the interaction between coating application and PGPR, Tri. +Humic acid and humic acid significantly increased all parameters of studied during both seasons.
Keywords
Sandy soil; Coating; Foliar application; Bio and organic fertilizers; Potatoes plants
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