Growth performance and nutritional concentrations of two kale (Brassica oleracea var Acephala ) varieties in response to fertilizer types in Awka, Southeast Nigeria

International Journal of Recycling Organic Waste in Agriculture

مقاله 19، دوره 12، شماره 4، اسفند 2023، صفحه 723-733   

نوع مقاله: Original Article

شناسه دیجیتال (DOI): 10.30486/ijrowa.2023.1979246.1591

نویسندگان

Stella Ogochukwu Muojiama¹؛ Uchenna Chukwunonso Nwune¹؛ Gladys Onyinyechi Ugo¹؛ Maryann Chinasa Ezeh¹؛ Uchenna Noble Ukwu^{* 2}

¹Department of Crop Science and Horticulture, Nnamdi Azikiwe University, Awka, Nigeria

²Department of Crop Science, University of Nigeria, Nsuk-ka, NigeriaUniversity of Nigeria Nsukka

چکیده

Purpose: Soil nutrient depletion is an endemic factor that constitutes one of the greatest limitations to crop production in the tropics. Identifying high yielding kale varieties that thrive best with the most cost-effective fertilizer type can help meet the nutritional deficits of most families in Africa in line with WHO recommendations. The propose of this study was to determine the effect of fertilizer type and variety on growth, calcium (Ca), iron (Fe), and vitamin concentrations of kale.
Method: Two kale varieties, curly and lacinato, and three fertilizers, 200 kg ha^-1 NPK 20:10:10 (NPK₂₀₀), 16 t ha^-1 poultry manure (PM₁₆), and 100 kg ha^-1 NPK 20:10:10 + 8 t ha^-1 poultry manure (NPK₁₀₀+PM₈) were evaluated in a 2×3 factorial in randomized complete block design (RCBD) with 3 replications. Data collections were based on selected agronomic, vitamins, and minerals parameters.
Results: Fertilizer type, variety and their interaction significantly affected (p<0.05) agronomic traits, minerals, and vitamin contents of kale. PM₁₆ influenced the most significant increases in plant height, leaf number, Ca, Fe, and vitamin-A concentrations whereas, NPK₁₀₀+PM₈ treated plants recorded higher leaf area and weight. Curly variety showed superiority in leaf area, leaf weight, Fe, and vitamin-A whereas, lacinato was higher in plant height, leaf number, Ca, vitamin D and E. Lacinato variety on NPK₂₀₀ treatment was highest in Ca, vitamin D and E concentrations while curly variety on PM₁₆ was highest in Fe and vitamin A.
Conclusion: PM₁₆ and NPK₁₀₀+PM₈ best improved growth, mineral and vitamin concentrations in kale and were therefore recommended for use.

کلیدواژه‌ها

Kale minerals؛ Vitamins in Kale؛ Fertilizer type؛ Varietal effect؛ Poultry manure

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