Superabsorbent Polymer and Rabbit Manure Improve Soil Moisture, Growth and Yield of Eggplant (Solanum melongena L.)
Elisha Otieno Gogo
Pwani University
Annah Wanjala Mnyika
Pwani University；Taita Taveta County Government
Simon Muti Mbuvi
Pwani University
DOI: https://doi.org/10.36956/njas.v2i1.93
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Abstract
Production of eggplant (Solanum melongena L.) is influenced by limited soil water and fertility conditions that affect its growth and yield. The use of superabsorbent polymer (SAP), also known as slush powder and rabbit manure are among the strategies that can improve soil conditions, hence growth and yield of crops. The objective of the study was to evaluate the effects of SAP and rabbit manure on soil moisture, growth and yield of eggplant. The study was conducted at Pwani University, Kilifi, Kenya. A randomized complete block design with three replications was used. The treatments were SAP, rabbit manure, SAP plus rabbit manure and control (without SAP or rabbit manure). Soil moisture, growth and yield parameters were determined. Superabsorbent polymer and/or rabbit manure improved soil moisture, growth and yield of eggplant compared with the control. Use of SAP had a better soil moisture retention, growth and yield comparable to SAP combined with rabbit manure. The finding demonstrates that use of SAP and/or rabbit manure may help in better soil water and nutrient management particularly in arid and semi-arid areas to improve growth and yield of eggplant.
Keywords: Soil amendment, soil moisture conservation, soil fertility, organic fertilizer, crop quality
References
[1] Abdrabbo, M.A.A., Farag, A.A. 2008. Using different mixtures of organic and inorganic materials plus levels of rabbit manure to grow pepper and eggplant in pot culture. The 1st Egyptian Conference on Rabbit Sciences. pp. 42–52.
[2] Abrisham, E.S., Jafari, M., Tavili, A., Rabii, A., Chahoki, M.A.Z, Zare, S., Egan, T., Yazdanshenas, H., Ghasemian, D., Tahmoures, M. 2018. Effects of a superabsorbent polymer on soil properties and plant growth for use in land reclamation. Arid Land Research and Management 32, 407–420.
[3] Abuarab, M.E., El-Mogy, M.M., Hassan, A.M., Abdeldaym, E.A., Abdelkader, N.H., El-Sawy, M.B.I. 2019. The effects of root aeration and different soil conditioners on the nutritional values, yield, and water productivity of potato in clay loam soil. Agronomy 9(418), 1–17.
[4] Agbo, C.U., Chukwudi, P.U., Ogbu, A.N. 2012. Effects of rates and frequency of application of organic manure on growth, yield and biochemical composition of Solanum melongena L. (cv. ‘Ngwa local’) fruits. Journal of Animal & Plant Sciences 14, 1952–1960.
[5] Ahmed, M.S.M., Manal, M.H., Gad-El Moula, A.A., Farag, A., Mona, A.M. 2016. Response of eggplant (Solanum melongena L.) to application of some organic fertilizers under different colors of plastic mulch. Middle East Journal of Agriculture Research 5, 636-646.
[6] Anonymous. 2005. Official method of Analysis, Washington D.C. Association of Official Analytical Chemists. Washington D.C., USA. pp. 19.
[7] Ayaz, F.A., Colak, N., Topuz, M., Tarkowski, P., Jaworek, P., Seiler, G., Inceer, H. 2015. Comparison of nutrient content in fruit of commercial cultivars of eggplant (Solanum melongena L.). Polish Journal of Food and Nutrition Sciences 65, 251–259.
[8] Bai, W., Zhang, H., Liu, B., Wu, Y., Song, J. 2010. Effects of superabsorbent polymers on the physical and chemical properties of soil following different wetting and drying cycles. Soil use and management 26, 253–260.
[9] Chen, Y., Tan, H. 2006. Cross linked carboxymethylchitosan-g-poly(acrylic acid) copolymer as a novel superabsorbent polymer. Carbohydrate Research 341, 887–896.
[10] Díaz-Pérez, J.C., Eaton, T. E. 2015. Eggplant (Solanum melongena L.) plant growth and fruit yield as affected by drip irrigation rate. Hortscience 50, 1709–1714.
[11] Fernando, T.N., Aruggoda, A.G.B., Disanayaka, C.K., Kulathunge, S. 2014. Evaluating the effects of different watering intervals and prepared soilless media incorporated with a best weight of superabsorbent polymer (SAP) on growth of tomato. Journal of Engineering and Technology of the Open University of Sri Lanka (JET-OUSL) 2, 1–14.
[12] Grubben, G.J.H., Delton, D.A. (Eds.). 2004. Plant Resources of Tropical Africa 2, Vegetables. PROTA Foundation, Wageningen, Netherlands, Blackhuys publishers, Leiden. CTA, Wageningen, Netherlands 668 pp.
[13] Guo, J., Shi, W., Wen, L., Shi, X., Li, J. 2019. Effects of a super-absorbent polymer derived from poly-γ-glutamic acid on water infiltration, field water capacity, soil evaporation, and soil water-stable aggregates. Archives of Agronomy and Soil Science. DOI: 10.1080/03650340.2019.1686137.
[14] Infonet Biovision. 2020. Crops, Fruits & Vegetables: Eggplant. https://www.infonet-biovision.org/PlantHealth/Crops/Eggplant. Accessed on 7th July 2020.
[15] Jaetzold, R., Schmidt, H., Hornetz, B., Shisanya, C. 2012. Farm management handbook of Kenya: Part C, East Kenya. II. Ministry of Agriculture, Nairobi, Kenya.
[16]
[17] Karam, F., Saliba, R., Skaf, S., Breidy, J., Rouphael, Y., Balendonck, J. 2011. Yield and water use of eggplants (Solanum melongena L.) under full and deficit irrigation regimes. Agricultural Water Management 98, 1307–1316.
[18] Kipkemoi, S., Ndegwa, B., Wachana, C., Opondo, M., Kirogo, V., Kipleel, D., Nduru, M., Mogere, J. 2014. Stories by county environmental resilience and social inclusion officers. Government of Kenya, Agricultural Sector Development Support Programme (ASDSP) Ministry of Agriculture, Livestock and Fisheries. Nairobi, Kenya. pp. 51.
[19] Okalebo, J.R., Gathua, K.W. and Woomer, P.C. 2002. Laboratory methods of soil and plant analysis: a working manual. TSBF Programme, Nairobi, pp 36–37.
[20] Omuto, C.T. 2013. Major soil and data types in Kenya. Developments in Earth Surface Processes 16, 123–132.
[21] Özbek, Ö., Kaman, H. 2018. Effects of different irrigation regimes on eggplant yield in greenhouse conditions. Bangladesh Journal of Botany 47(2), 173–179.
[22] Raju, KM., Raju, M.P., Mohan, Y.M. 2003. Synthesis of superabsorbent copolymers as water manageable materials. Polymer International 52, 768–772.
[23] Rop, B.K. 2019. Development of slow-release nano-composite fertilizer using biodegradable superabsorbent polymer (doctoral dissertation), University of Nairobi, Kenya.
[24] Saha, A., Rattan, B. Sekharan, S., Manna, U. 2020. Quantifying the interactive effect of water absorbing polymer (WAP)-soil texture on plant available water content and irrigation frequency. Geoderma 368, 114310. Doi: 10.1016/j.geoderma.2020.114310
[25] Sayyari, M., Ghanbari, F. 2012. Effects of superabsorbent polymer A200 on the growth, yield and some physiological responses in sweet pepper (Capsicum Annuum L.) under various irrigation regimes. International Journal of Agricultural and Food Research 1, 1–11.
[26] Uzun, S., Balkaya, A., Kandemir, D. 2007. The effect of different mixtures of organic and inorganic materials and growing positions on vegetative growth of aubergine (Solanum melongena L.) grown in bag culture in greenhouse. Journal of the Faculty of Agriculture 22, 149–156.