Effect of amendments on Growth and Nutrient uptake of African marigold (Tagetus erecta) under Paper and Pulp Mill Effluent Irrigated Soil

Author: Ezra John J. , P. Thangavel*, G. Balasubramanian , T. Kalaiselvi and E. Kokiladevi

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Abstract

In spite of water shortages green areas in cities have increased due to use of alternative water sources for irrigation. Alternative water sources usually have a lot of salt in them, as a result, salinity threatens the survival of various plants. Paper and pulp mill effluent is generally alkaline and increases the salinity of soil when irrigated for long duration. Therefore, developing agronomic strategies and salt tolerant varieties for successful cultivation of crops in saline soils is explored in recent years. Hence, this study was aimed to assess the potential of different amendments (without amendment (A1), 50 % Gypsum requirement (A2), Poultry manure at 5 t ha-1 with 0.1 % Pink pigmented facultative methylotroph (PPFM) as foliar spray (A3) and 5 t ha-1 Pressmud compost along with CSR BIO 35 kg ha-1 (A4)) to improve the crop growth of marigold (Tagetes erecta L.) under salt stress. Application of organic amendments increased the biomass and flower yield of marigold when compared w

Keywords

Salinity, African marigold, Organic amendments, Paper and pulp mill effluent, ion uptake.

Conclusion

The Alternative water sources usually have a lot of salt in them, this leads to development of salinity that threatens the survival of various plants. Organic amendment application releases acids during decomposition and help in reducing the salinity stress and improves crop growth. In this study it is evident that application of organic amendments increased the biomass by 73.3% and flower yield by 69.9 %. It also helps in uptake of essential nutrients like Ca+ and K+ which is generally unavailable in saline and sodic soils. Hence the application of organic amendments has significant effect on cultivation of marigold under paper and pulp mill effluent irrigated soil.

References

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How to cite this article

Ezra John J., P. Thangavel, G. Balasubramanian, T. Kalaiselvi and E. Kokiladevi (2022). Effect of amendments on Growth and Nutrient Uptake of African marigold (Tagetus erecta) under Paper and Pulp Mill Effluent Irrigated Soil. Biological Forum – An Inte