Amending Sandy Soil with Biochar or/and Superabsorbent Polymer Mitigates the Adverse Effects of Drought Stress on Green Pea

Youssef, Sabry Mousa Soliman, Riad, G.S., Abu El-Azm, Nashwa, Ahmed, Enas,


Faced with the scarceness of water resources and climate changes, drought is undoubtedly
one of the most important abiotic stresses limiting the growth and productivity of plants
including green pea, especially in the arid and semi-arid areas. The uses of soil amendments
like biochar and superabsorbent polymer, which characterized by enhancing water holding
capacity and improving soil physical properties, become more important in these areas. A
lysimeter experiment with sandy soil in a completely randomized design was carried out in
three replicates to study the effect of biochar or/and superabsorbent polymer on the growth and
productivity of green pea (Pisum sativum L.) cv. Master B under full irrigation (100% of water
requirement) and water deficit regime (75% of water requirement) conditions during 2015/2016
and 2016/2017 seasons at the Experimental Research Farm of the Horticulture Department,
Faculty of Agriculture, Ain Shams University, Qalyubia Governorate, Egypt. Results revealed
that lowering irrigation level to 75% of water requirements led to significant decreases in
vegetative growth parameters, SPAD readings, leaf relative water content, leaf nutrients (N,
P, and K) and pod yield components compared with the full irrigation. Adding biochar or/and
superabsorbent polymer significantly increased the aforementioned characters under both full
irrigation and water deficit conditions. Application of biochar with superabsorbent polymer
was the most efficient treatment to alleviate the deleterious effects of water deficit on green
pea cultivation in sandy soils. In conclusion, applying biochar (1% w/w) with superabsorbent
polymer (0.7% w/w) might be a promising novel approach to improve sandy soils characteristics
and help green pea cultivation in these soils which are characterized by a low water holding
capacity and low fertility.

Other data

Title Amending Sandy Soil with Biochar or/and Superabsorbent Polymer Mitigates the Adverse Effects of Drought Stress on Green Pea
Authors Youssef, Sabry Mousa Soliman ; Riad, G.S. ; Abu El-Azm, Nashwa ; Ahmed, Enas 
Keywords Pisum sativum, Soil amendments, Hydrogel, Water deficit, Leaf relative water content, Water holding capacity.
Issue Date 2018
Publisher National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Journal Egyptian Journal of Horticulture 
ISSN 1110-0206
DOI 10.21608/EJOH.2018.3860.1067

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