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    Wyświetlanie 1-3 z 3
    Tytuł:
    Influence of different methods of fertilizer application on the growth of maize (Zea mays L.). for increase production in south Nigeria
    Autorzy:
    Adiaha, M. S.
    Agba, O. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1191226.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Ring method; NPK fertilizer; Zea mays; application rate; influence; indicate; corn
    Ring method
    NPK fertilizer
    Zea mays
    application rate
    influence
    indicate
    corn
    Opis:
    The study was conducted to determine the influence of different methods of fertilizer application on the growth of maize (Zea mays L.) at the Teaching and Research Farm, Faculty of Agriculture and Forestry, Cross River University of Technology. Maize seed variety Ikom Local White were treated to one level of NPK (15:15:15) fertilizer (0.128 kg ha-1) and four methods of fertilizer application (Broadcasting, Ring Application, Hole Application and Liquid Application). The experiment was laid out in a Randomized Complete Block Design (RCBD). The treatments were replicated four times to give a total of sixteen field plots. The result obtained indicated that NPK (15:15:15) significantly (p< 0.05) increase growth parameters (plant height and number of leaves) of maize obtained at 0.128 kg ha-1 and Ring method of application seems appropriate for maize production at 1 m spacing between plants on bed.
    Źródło:
    World Scientific News; 2016, 54; 73-86
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Yield of cotton cultivars as influenced by nitrogen rates and plant density in Yalingo, Nigeria
    Autorzy:
    Omadewu, L. I.
    Iren, O. B.
    Eneji, A. E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1062826.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Cotton variety
    lint yield
    nitrogen rate
    plant population
    seed yield
    urea fertilizer
    Opis:
    Nitrogen rates and plant density are two important practices for optimum production of cotton. Field experiment was conducted at two locations within the Research Farm, College of Agriculture, Jalingo (longitude 11° 09’ and 11° 30’ East and latitude 8° 17’ and 9° 01’ North) in Nigeria to investigate the influence of nitrogen rates and plant density on yield components of cotton cultivars. A 4 × 3 × 2 factorial of four nitrogen (N) rates (0, 120, 150, 200 kg/ha), three cotton varieties (Jalingo Local, Samcot-13, Sketch-8) and two plant densities (44,444 and 60,000 plants/ha) was arranged in a randomized complete block design (RCBD) and replicated three times. Data were collected on cotton seed yield, lint yield and number of seeds/boll. Nitrogen rate, plant density and variety had a positive effect on cotton seed yield, lint yield and number of seeds/boll. Nitrogen rates at all levels significantly (p< 0.05) increased the seed and lint yield of cotton when compared with control. However, the differences in yield between 150 kg N/ha and 200 kg N/ha rate was not significant making nitrogen rate of 150 kg N/ha more economical and optimum for cotton seed yield. Low plant population gave rise to higher seed yield. Interactively, the 150 kg N/ha × Jalingo Local × low plant density (44,444 plants/ha) gave the highest cotton seed and lint yield.
    Źródło:
    World Scientific News; 2019, 127, 3; 106-122
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Growth and Yield Response of Maize (Zea mays L.) to a Wide Range of Nutrients on Ferralsols of Western Kenya
    Autorzy:
    Otieno, Hillary M. O.
    Powiązania:
    https://bibliotekanauki.pl/articles/1075498.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Agronomic efficiency
    Zea mays
    crop growth rates
    fertilizer application
    maize
    micronutrients yield response
    nitrogen response
    phosphorus response
    potassium response
    relative growth rate
    Opis:
    Declining soil fertility is one of the main causes of low yields of maize. Farmers apply low rates of unbalanced nutrients leading to further nutrient mining. A randomized complete block nutrient omission trial with six replications was therefore set to determine maize response to the application of a wide range of nutrients from inorganic fertilizers on Ferralsols. The treatments were NK, NP, PK, NPK, and NPK + CaMgZnBS. The results showed that application of PK fertilizer resulted in low crop growth rate (CGR), and relative growth rate (RGR), and biomass compared to other treatments. Application of a wider range of nutrients (NPK + CaMgZnBS treatment) improved maize growth and yield compared to other treatments. In terms of grain response, Urea application recorded the highest yield (1800 kg/ha) followed by Triple Superphosphate (1300 kg/ha) then Muriate of potash (1100 kg/ha) and least by a combined application of secondary nutrients and micronutrients (ZnBMgCaS = 400 kg/ha). Highest agronomic efficiency of 32.5 kg grain /kg P applied was recorded due to P followed by K (27.5 kg grain /kg K) and least by N (15 kg grain /kg N). Based on the combined effect, application of N-P-K based fertilizers could give better yields. Use of micronutrients should be assessed further for conclusive recommendations.
    Źródło:
    World Scientific News; 2019, 129; 96-106
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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