Effect of Bio- and Synthetic- Polymers on Enhancing Soil Physical Properties and Lettuce Plant Production

Saad El-Dein, Ahmed; A. M. Abd El-Hafez; Enas, A. Hassan; Sodaf, A. Ahmed;

Abstract


Most of new reclaimed soils in Egypt are light to medium in texture. They are mainly poor in
physical and hydro-physical soil quality such as porosity, water retention capacity and available
water content. The objective is to assess some bio-polymers and synthetic polymers to test their
effects on the soil physical and hydro-physical properties and on Lettuce plant production.
Seven treatments were applied using bio-polymers (2%dextran, 3%alginate and 3% xanthan) and two synthetic polymers (2 and 3% polyacrylamide and 2 and 3% diaper). These polymers were cheeked for their efficiency in enhancing soil properties of Toshka soil and the growth performance of Lettuce plant (Lactuca sativa) grown in soil for 55 days under open field conditions was considered. Fresh and dry weights of plant and nutrient contents were increased significantly with all biotreatments amendment. Whereas, synthetic polymers caused negative effects on the previously mentioned parameters. Concerning the effects on soil properties, dextran treatment recorded the lowest values of total drainable pores (TDP %), the highest values of porosity (%), and available water. Whereas, thesynthetic polymers amended soil attained negative effect with all these measured parameters compared with control treatment.
The study declared beneficial order of enhancement of soil physical and hydro-physical properties and plant production as obtained with Dextran, followed by Alginate, and Xanthan bio-polymers, while synthetic polymers did not show such effects. Hence, the study recommend using biopolymers instead of synthetic polymers.


Other data

Title Effect of Bio- and Synthetic- Polymers on Enhancing Soil Physical Properties and Lettuce Plant Production
Authors Saad El-Dein, Ahmed ; A. M. Abd El-Hafez ; Enas, A. Hassan ; Sodaf, A. Ahmed 
Keywords Biopolymers; synthetic polymers; soil physics; pore size distribution; soil conditioners; lettuce plant
Issue Date 4-Feb-2019
Publisher Asian Journal of Soil Science and Plant Nutrition
Source http://www.journalajsspn.com/index.php/AJSSPN/article/view/30037/56364
Journal Asian Journal of Soil Science and Plant Nutrition 
Series/Report no. 4(1);1-9
Conference The 13th International Conference of Egyptian Soil Science Society (ESSS) 
DOI http://www.journalajsspn.com/index.php/AJSSPN/article/view/30037/56364

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