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University of CA and USDA-ARS Fusarium Screen Summary – 2013 trials

 

University of CA and USDA-ARS Fusarium Screen Summary – 2013 trials
Hutmacher, Wright, Ulloa et al – February 2014

Univ. California and USDA-ARS Fusarium-Race 4 Screenings (THREE SITES: Kern County and Tulare County sites plus greenhouse site at Kearney REC – 2013)

2013_Fusarium Race 4 Field Ratings SUMMARY TABLE – means and std deviations only

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Extending Efficient Drip Irrigation Management Approaches to San Joaquin Valley Pima Cotton Growers

 

Introduction
Irrigation scheduling methods in the irrigated far west are not uniformly accepted and depend on irrigation system, production economics and the management investment the grower is committed to. Most current and successful methods use soil and/or plant-based measurements that are combined with regional estimates of ETa and Kc to calculate best irrigation timing. Growers that make use of the available technology find that the time and financial costs invested in making careful field evaluations improve farm economics. Seasonal cotton water use for optimum yields can exceed 750 mm (30 inches) with typical rainfall contributions less than 15 percent of total season water requirements. Crop water requirements are distributed unevenly across the season with very low ET observed in the 60 days following planting and peak ET observed 100 to 115 days after planting. The highest cotton water use period is from late June to mid August during peak-bloom with daily water use of slightly over 2.0 inches per…

 

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2013 Cotton Harvest Aid Progress Report

 

Cotton Harvest Aid Management 2013

This report summarizes the applied defoliation research studies conducted during 2013. This was another unique season due to warm weather causing rapid progression of the cotton crop. Three research trials were conducted on Pima cotton at the Westside Research Center in Five Points, CA. These fields were planted with Phytogen 802RF on April 16, 2013 with a seed rate of 18 lbs/A. The fields received a pre-irrigation, three in-season irrigations, and pressure bomb readings were taken to better manage plant vigor. In addition, the fields received 140 lbs of nitrogen urea plus 14 lbs sidedress of Temik (Aldicarb) on May24, 2013. The fields also received 16 ounces of Mepex (Mepiquat Chloride) on June 19th and again on July 1, 2013. The plots were 65’ in length and consisted of four rows with 40” spacing. In each trial, each treatment had 4 replications.

The objective of these studies was to define the most appropriate conditions for effective defoliation and crop termination. New harvest aids and several tank mix combinations…

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