Evaluation of the quality of SARS COV 2 positive nasopharyngeal samples stored in liquid nitrogen at the biobank (Pasteur institute of Côte d’Ivoire)

The SARS Cov2 positive samples from the COVID 19 pandemic surveillance were subjected to quality control after storage at the biobank of the Pasteur Institute of Côte d’Ivoire. They were evaluated one year after their cryopreservation by a PCR test (polymerase chain reaction) and the threshold values of the cycle were recorded. PCR test results […]

Response of nitrogen and bio-fertilizer rates on yield, yield components and seed quality of Maize (Zea mays L.) at Kedida Gamela District, Kambata Tambaro Zone, Southern Ethiopia

Low soil fertility is one of the major factors limiting maize productivity. The objectives of this study were to evaluate the response of nitrogen and bio-fertilizer (BF) rates on yield components and yield of maize. Five levels of nitrogen (0, 23, 46, 69, and 92kg N ha-1) and three levels of BF (0, 5 and10kg […]

Nitrogen fertilization and potting medium composition in the growth and herbage yield of container-grown Peppermint (Mentha cordifolia Opiz.)

The study was conducted to determine the influence of potting medium and nitrogen fertilization on the growth and yield of container-grown peppermint. The type potting medium significantly influenced some growth parameters and herbage yield of peppermint. Plant grown in 2:1 garden soil + compost (M2) and 2:1:1 garden soil +compost +rice hull charcoal (M4) had […]

Agronomic Response of Sorghum [Sorghum bicolor (L) Moench] Variety to Density, Nitrogen and Blended Fertilizer Rates for Yield Components and Seed Quality in Southern Ethiopia

Low soil fertility and density are the major yields and seed quality limiting constraints. Therefore, the field experiment was conducted to elucidate the effect of density, nitrogen and NPS rates on yield components and seed quality of sorghum. The treatments consisted of a factorial combination of 4 density, 3 nitrogen and NPS rates laid out […]

Impact assessment of cement industry activities on soil nitrogen-fixing bacteria

Nitrogen fixing bacteria play a vital role in transforming atmospheric nitrogen into inorganic form easily available for plant use. However, environmental pollution due to effluent from industrial activities could accumulate in soil, significantly altering the soil chemical and microbiological characteristics, such as nitrogen fixing bacteria. The effect of cement dust on nitrogen-fixing bacteria is presented […]

Effect of population, propagule size and nitrogen levels on growth and rhizome yield of ginger (Zingiber officinale Rosc.) in Southern Ethiopia

A field experiment was conducted during the 2021 main cropping season to determine the effect of density, rhizome size, and applied nitrogen levels on the growth and rhizome yield of ginger (Zingiber officinale Rosc). The treatments consisted of a factorial combination of three population densities, three rhizome sizes, and three nitrogen levels laid out in […]

Can nitrogen fertilizer rates affect the yield response of Boro rice (Oryza sativa L.) variety on the Old Brahmaputra floodplain soil of Bangladesh?

This study observed the yield response to nitrogenous fertilizer for a popular Boro rice variety BRRI dhan29 under silty loam texture soil with satisfactory organic matter (2.96%). Sequential elevated doses of nitrogen (N0, N70, N80, N90, N100, and N110 kg ha-1) along with recommended phosphorus (P), potassium (K), and Sulphur (S) significantly increased grain yield […]

Growth, phenology and yield of Maize (Zea mays L.) affected by nitrogen fertilizer rate and its time of application at Hadero Tunto District, Kambata Tambaro Zone, Southern Ethiopia

Maize (Zea mays L.) is one of the world’s leading crops ranked in the third position in the world cereal crop production after wheat and rice. It is a multipurpose traditional crop generally grown for food, feed and fodder. The study was conducted in Hadero Tunto District, Kambata Tambaro Zone, Southern Ethiopia during the main […]

The impact of different nitrogen fertilizer levels on maize hybrids performance in a humid environment

Fertility and its management are critical issues in sustainable agriculture for crops such as maize. The objective of this research was to compare maize hybrids (H) and nitrogen (N) rates, growth, yield, and yield components. We hypothesized that increasing supplemental levels of N would increase yield and yield components. A field experiment was conducted at […]

Molecular characterization of cellulolytic nitrogen-fixing bacterial species isolated from Khyber Pakhtunkhwa

Bacteria inhabiting the soil rhizosphere had been recognized for their properties of promoting plant health. The current research was undertaken for the molecular characterization of cellulolytic nitrogen-fixing bacterial species from the rhizosphere.  Two hundred and fifty soil samples were collected from Wheat and sugarcane rhizosphere in few districts of KPK and were grown on Nitrogen […]