Plant Root Simulator™-probes: an effective alternative for routine soil testing

Non-Peer ReviewedWith the current uncertainty facing the agronomic community, it is imperative for producers to have all of the necessary tools available for making informed decisions regarding crop nutrition planning. Considering that there are many indeterminate factors affecting the bottom line at the end of the growing season, it is prudent to manage the risk involved whenever possible. Utilizing a network of over 20 Field Service Representatives throughout Western Canada, Western Ag Labs provides an extensive one-on-one crop nutrition planning service to producers encompassing over 600,000 acres. Preceding any crop nutrition consultation, however, is the soil nutrient supply rate analysis carried out in the lab using Plant Root Simulator (PRS)™-probes. The purpose of this paper is to briefly describe the protocols employed by Western Ag Labs during routine soil analysis, including: soil sample handling and preparation; PRS™-probe analysis; and, the quality assurance QA program. Historical ranges of selected nutrient supply rate data measured in the lab using the PRS™-probes also are presented

Flamingo Vol. I N 4

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Spin 3/2 Pentaquarks

We investigate the possible existence of the spin 3/2 pentaquark states using interpolating currents with K-N color-octet structure in the framework of QCD finite energy sum rule (FESR). We pay special attention to the convergence of the operator product expansion

Preparations for Recoil Detection System at the Cooler T-Site

This research was sponsored by the National Science Foundation Grant NSF PHY-931478

PROFIT: a new alternative for emission-line PROfile FITting

I briefly describe a simple routine for emission-line profiles fitting by Gaussian curves or Gauss-Hermite series. The PROFIT (line-PROfile FITting) routine represent a new alternative for use in fits data cubes, as those from Integral Field Spectroscopy or Fabry-Perot Interferometry, and may be useful to better study the emission-line flux distributions and gas kinematics in distinct astrophysical objects, such as the central regions of galaxies and star forming regions. The PROFIT routine is written in IDL language and is available at http://www.ufsm.br/rogemar/software.html. The PROFIT routine was used to fit the [Fe II]1.257um emission-line profiles for about 1800 spectra of the inner 350 pc of the Seyfert galaxy Mrk1066 obtained with Gemini NIFS and shows that the line profiles are better reproduced by Gauss-Hermite series than by the commonly used Gaussian curves. The two-dimensional map of the h_3 Gauss-Hermite moment shows its highest absolute values in regions close to the edge of the radio structure. These high values may be originated in an biconical outflowing gas associated with the radio jet - previously observed in the optical [O III] emission. The analysis of this kinematic component indicates that the radio jet leaves the center of the galaxy with the north-west side slightly oriented towards us and the south-east side away from us, being partially hidden by the disc of the galaxy.Comment: Accepted for publication Astrophysics & Space Science - 7 pges; 4 Fig