Effect of Inorganic and Organic Fertilizers on the Performance and Profitability of Grain Amaranth (Amaranthus caudatus L.) in Western Kenya

Nyankanga, Richard O.; Onwonga, Richard N.; Wekesa, Francis S.; Nakimbugwe, Dorothy; Masinde, Dorothy; Mugisha, Johnny
January 2012
Journal of Agricultural Science (1916-9752);Jan2012, Vol. 4 Issue 1, p223
Academic Journal
Protein malnutrition is a major cause of morbidity and mortality in developing countries where the cost and availability of animal protein remain prohibitive. Grain amaranth (Amaranthus caudatus L) has the potential to substitute expensive animal protein. Its production and consumption is however low in Kenya. Nitrogen is a key limiting element in grain amaranth production. This study investigated the effects of different rates of inorganic nitrogen and cattle manure on the growth and yield of grain amaranth over a period of two years. Inorganic fertilizer at the rate of 100 kg N/ha significantly delayed flowering. Grain yield showed a linear response to inorganic and organic N application. Regression analysis projected the optimum inorganic fertilizer and manure application rates of 87.5 kg N/ha and 9 t/ha respectively with yield of 1.84 t/ha. The highest profitability was achieved at the optimum manure and fertilizer rates. The projected manure and inorganic fertilize rates may however not be affordable by the small-scale farmers. Thus a follow-up study to test the combined effect of inorganic and organic fertilizers is recommended.


Related Articles

  • top seed. Roberts, Annalise // Vegetarian Times;Mar2010, Issue 375, p44 

    The author discusses how the grain-like herb amaranth is used and provides a recipe for amaranth breadsticks.

  • Food of the Month: Amaranth. Boubion, Michelle Basta // Joe Weider's Muscle & Fitness;Nov99, Vol. 60 Issue 11, p100 

    Provides information on amaranth, a grain that serves as a protein source for bodybuilders. Nutritional benefits that can be gained from amaranth; Preparation of the grain; Nutrient profile.

  • amaranth, grain:. Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects;2003, p444 

    A reference entry for grain amaranth, the common name for the plant Amaranthus Amaranthus caudatus or hypochondriacus that belongs to the Amaranthaceae family, is presented.

  • HuMates unlocks the soil.  // New Zealand Dairy Exporter;May2008, Vol. 83 Issue 10, p129 

    The article evaluates the Humates organic product and ingredient of organic fertilisers.

  • Ancient grains for modern nutrition. Robertiello, Jack // Americas;May/Jun96, Vol. 48 Issue 3, p58 

    Presents recipes for cooking quinoa and amaranth grains. Quinoa Bean Salad; Quinoa Pilaf; Amaranth, Corn and Bean Medley; Amaranth Cornbread.

  • AMARANTH: ANOTHER HIGH LYSINE, HIGH FIBER GRAIN. Irwin, Christopher // Saturday Evening Post;Jan/Feb85, Vol. 257 Issue 1, p26 

    Presents recipes for amaranth dishes. Amaranth Fruitcake; Apples Amaranth; Amaranth Corn Bread; Whole-Wheat Bran and Amaranth Muffins; High-Lysine Corn Meal/Amaranth Pancakes.

  • Friendly Fertilizers.  // Habitats Newsletter;Apr2005, pN.PAG 

    Provides tips in choosing the right fertilizers for plants. Chemical components of many commercial fertilizers; Suggestions in buying organic fertilizers.

  • SK Food Launches Supergrains.  // Snack Food & Wholesale Bakery;Jul2010, Vol. 99 Issue 7, p40 

    The article announces that SK Food International launched an organic amaranth and quinoa flakes as an addition to its extensive line of premium quality ingredients for all types of cooking.

  • Close the seed bank. PROSTKO, ERIC // Southern Farmer (1541-2008);Sep2011, Vol. 10 Issue 9, p22 

    The article presents the author's insights on how to control Palmer amaranth plants, in which he suggests considering first seed-bank management.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics