Nitrogen is considered the most important element in plant nutrition and growth. However its role and availability for boreal forest conifers is still debated. Boreal conifers have adapted strategies to cope with the reduced availability of N. ECM fungi, associated with boreal co...
Open access
Research Article10.9734/IJPSS/2013/4233
Farmers' practice of planting more than one crop under mixed cropping without fertilizer application has been a source of concern in Nigerian agriculture due to inherent low fertility status and fragile nature of the soils. This study was set up to assess the performance of okra...
Open access
Research Article10.9734/IJPSS/2013/4796
Deficit irrigation technique was introduced to find the best means to conserve irrigation water in arid lands. The most common model describing deficit irrigation is water yield response model. The main advantage of such model is that it can predict relative yield drop, which ari...
Open access
Research Article10.9734/IJPSS/2013/4981
The experiments were conducted during 2010 and 2011 rainy seasons at the research and teaching farm of the college of agriculture, Lafia, Nasarawa state, Nigeria. To determine the effect of urea fertilizer and poultry manure on the performances of fluted pumpkin (Telfairia occide...
Open access
Research Article10.9734/IJPSS/2013/3863
Soil organic matter (SOM) has very important functions in the soil. It affects the soil physical, chemical and biological properties, and eventually affecting the overall soil and crop productivity. Increase in SOM matter is associated with an increase in soil and crop productivi...
Open access
Research Article10.9734/IJPSS/2013/4970
This study investigated the effect of different crude oil fractions (whole crude WC, water soluble fraction WSF, water insoluble fraction WIF and soil from a crude oil contaminated site, Ubeji) at different percentages of soil contamination (2, 5 and 10%) on growth (percentage se...
Open access
Research Article10.9734/IJPSS/2013/4102
This paper focuses on organic and biodynamic farming systems - sectors growing rapidly in many countries - and particularly on their relationship with the concept of sustainability. Both technical packages promote and improve the health of the agro-ecosystems related to biodivers...
Open access
Research Article10.9734/IJPSS/2013/4493
The current study was conducted to determine the viability of maize seed infested with Angoumois Grain Moth Sitotroga cerealella (Olivier). The aim was to see how different cultivars of maize are resistant to this pest. Seeds of four cultivars of maize viz. Pop 2006, Soan, Margal...
Open access
Research Article10.9734/IJPSS/2013/3451
Aims: Effects of fire on soil properties was performed in experimental plots, whose fuel amount was altered in order to obtain different heating intensities with the aim of assessing changes in soil physical conditions at varying fire temperature and also the fire temperatures wi...
Open access
Research Article10.9734/IJPSS/2013/3121
Aims: The present study investigated the effect of the presence of natural weeds in the remediation of oil polluted soils that have not been disturbed or modified anthropogenically. Study Design: The experimental design chosen was the completely randomized design (CRD) following...
Open access
Research Article10.9734/IJPSS/2013/3598