October 2011

Influence of spacing and organics on plant nutrient uptake of black nightshade (Solanum nigrum)

Investigations were carried out at the Horticultural College and Research Institute to study the effect of spacing and bio-stimulants on the plant nutrient uptake ofSolanum nigrum. The experiments were laid out in split plot design with three replications. The treatments consisted of four levels of spacing  (M1 – 30 × 30 cm, M2 – 45 × 45 cm, M3 – 60 × 30 cm...

Author(s): Sivakumar V. and Ponnusami V.

October 2011

Effects of shade on growth, production and quality of coffee (Coffea arabica) in Ethiopia

  The research work was conducted to evaluate the effect of shade on growth and production of coffee plants. To achieve this, growth and productivity of coffee plants growing under shade trees were compared with those of coffee plants growing under direct sun light. Different physiological, environmental and quality parameters were assessed for both treatments. Shade trees protected coffee plants against...

Author(s): Adugna D. Bote, and Paul C. Struik

October 2011

Tests of direct sowing of the durum wheat under pivot in the Saharan zone: Influence on yield components

Our experiment is mainly based on the comparison of two methods of tillage leading of cereal cultivation under pivot in the arid zone, a case of El Meniâa (wilaya of Ghardaia). To achieve this, we have tested the technique of direct sowing in the Saharan zone by applying a random block experimental device with two treatments, T1 and T2, representing, respectively, a direct sowing and a sowing preceded by soil...

Author(s): M. O. Kheyar, B. Mouhouche and M. Mahdi