Comparison of Organic and Conventional Crops at the Neely-Kinyon Long-term Agroecological Research (LTAR) Site

The Neely-Kinyon LTAR site was established in 1998 to study the long-term effects of organic production in Iowa. Treatments at the LTAR site, replicated four times in a completely randomized design, include the following rotations: conventional Corn-Soybean (C-S), organic Corn-Soybean-Oats/Alfalfa (C-S-O/A), organic Corn-Soybean-Oats/Alfalfa-Alfalfa (CS-O/A-A). A new rotation of Corn-SoybeanCorn-Oats/Alfalfa (C-SB-C-O/A) replaced the old S-W/RC rotation.

Generation of 210 fs laser pulses at 1093 nm by a self-starting mode-locked Yb:GYSO laser

We report the first demonstration, to our knowledge, of the femtosecond laser operation by using a new alloyed Yb:GYSO crystal as the gain medium. With a 5 at. % Yb3+-doped sample and chirped mirrors for dispersion compensation, we obtained pulses as short as 210 fs at the center wavelength of 1093 nm. The average mode-locking power is 300 mW, and the pulse repetition frequency is 80 MHz. (C) 2008 Optical Society of America

Français 1093

Contient : 1° « Livre de BOECE de Consolacion, lequel maistre JEHAN DE MEHUN translata de latin en françoys » ; 2° « Les Noms des neuf preuz et le temps qu'ilz trespasserent » ; 3° « BOETII de Consolatione philosophiae » libri quinque ; 4° Commentaire en latin sur Boëce

Na 50 Nachlass Arthur Schopenhauer - 'Schopenhauer-Archiv', 1093 - Stellungnahme Schopenhauers zur erschienenen Publikation

abgedruckt in: Schopenhauer-Jahrbuch 39 (1958), S. 148-149 (Teilabdruck)

A Comparison of Soybean Seed Treatments

Seed treatment options are available to manage various fungi, insects, and nematodes that can damage soybeans before, during, and after emergence. These treatments are potentially beneficial for stand establishment and for protection against soybean cyst nematode (SCN). However, these seed treatments represent an additional cost to the producer.