Efficacy of Biochar and Gypsum in Amelioration of Soil with Saline Water Irrigation in Ornamental Plants
2024
NALLAPOTALA, KOWSALYA | SWARAJYA LAKSHMI, K | NAGA MADHURI, K | RAJA NAIK, M | PADMAJA, V V
The present investigation was carried out to evaluate the effects of biochar and gypsum on the physiological and biochemical attributes of ten ornamental plant species grown in saline soil. Six months old ornamental plants were treated against salinity levels of 0, 6 and 9 dS m-1. A set of 300 plants were applied with 100 g of biochar (2% of total pot mass) and another set of 300 plants were applied with 20 g of gypsum according to the treatment schedule. The results showed that, increasing salt concentration in irrigation water decreased plant height, total chlorophyll content, carotenoid content and relative water content and also damaged membrane stability causing electrolyte leakage. Using biochar at 2% of total soil weight, improved the nutrient content of soil, plant growth and plant physiological attributes. Application of gypsum had a major role in mitigating the harmful effects of salt stress on ornamental plants irrigated with saline water.
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