The present study was carried out on one year -old two olive cultivars, Coronaiki as oil cultivar and Manzanillo as double purpose (table and oil) cv. in a private farm located at western desert along Cairo, Alexandria Road (50 km from Cairo), Egypt and planted at 5 x 6 meter apart in sandy soil and irrigated with drip irrigation system trees were similar in growth vigour and received the commo...

The present study was undertaken May-September (2007) to investigate the effect of organic viz., plant compost (PC), vermicompost (VC), integrated plant compost (IPC) and farmyard manure (FYM) and inorganic (NPK) fertilisers on the rhizosphere microbial population and soil physico chemical properties of soybean variety JS80-21. Control (CON) plot was also maintained without any fertilisers. Res...

Knowledge of the actual content of nitrogen, phosphorus, and potassium (NPK) in animal slurry is highly important to optimize crop production and avoid environmental pollution when slurry is spread on agricultural fields. Here, we present a mobile, low-field nuclear magnetic resonance (NMR) sensor suitable for online monitoring of the NPK content in animal slurry as an alternative to crude esti...

Effects of NPK 15:15:15 compound fertilizer and planting season on flowering and sex expression of pumpkin were analyzed at the Teaching and Research Farm, Obafemi Awolowo University, Ile-Ife, Nigeria in year 2010. Results deciphered that day to 50% flowering, number of male and female flowers responded to season than fertilizer rates. Late season planting reached 50% flowering 5 days earlier t...

Contents 1 An introduction to inquisitive semantics 1 1.1 Information states and the classical update perspective .

In order to ensure optimum trace element supply via cereals, the uptake of selenium from a selenate containing NPK fertilizer (20:8:8, with 20 mg/kg selenate Se) was tested. A series of fi eld and pot experiments were run on a cambisol, a clay soil, a calcareous phaeozem, and a chernozem within the physiologically feasible range in 3 subsequent years. Selenate addition led to a signifi cant inc...

Exploring environmentally eco-friendly approaches to enhance crop growth and productivity are essential for sustainable agriculture. Therefore, a field trial was conducted during two growing seasons study the effects of synthetic (nitrogen, N; phosphorus, P; potassium, K), biogas digestate (BioD), bio-fertilizer (BioF), their combinations on growth, yield, seed quality faba bean (Vicia L.). The...

A study was carried out in the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, Old Brahmaputra Flood Plains Soil (AEZ-9) during December 2001 to April 2002 to find out the effect of seed rates and NPK levels on dry matter accumulation and grain yield of foxtail millet (Setaria italica L. Beauv.). Four seed rates viz., 8,10,12, and 14 kg/ha and five levels of NPK ferti...

Coastal sandy soil is characterised by low fertility and poor physical properties. Distillery effluent, a liquid waste from the distillery industry contains large quantities of soluble organic matter and plant nutrients. It does not contain any toxic elements / compounds. In order to improve the physical properties and fertility of the coastal soil by utilising the distillery effluent, field ex...

Net N mineralization rate (NMR), net N consumption rate (NCR), microbial biomass carbon (MBC) and nitrogen (MBN), potentially mineralizable N (PMN) and mineral N (N-NH4 + and N-NO3 –) were measured in paddy soil at five growth stages of rice to determine the effect of long-term fertilization in subtropical China. The studied long-term treatments included CK (no fertilization), N, NP, NPK and NP...