Effect of Biostimulants Added to Postemergence Herbicides in Corn, Oats and Winter Wheat

Nader Soltani,Peter H Sikkema,Christy Shropshire

doi:10.4236/as.2015.65052

Abstract

There is limited information available on the effect of biostimulants such as Crop Booster or RR SoyBooster on corn, oats and winter wheat under Ontario environmental conditions. A total of 37 field experiments were conducted in corn, oats and winter wheat at two locations (Ridgetown and Exeter, Ontario, Canada) to evaluate the effect of Crop Booster or RR SoyBooster on crop injury, weed control and yield. The addition of Crop Booster to glyphosate did not affect weed control or corn yield except at 4 weeks after herbicide application (WAA) when control of pigweed species was increased by 1% and at 4 and 8 WAA when control of common lambsquarters was reduced by 1%. The addition of RR SoyBooster to glyphosate did not affect crop injury, weed control or corn yield. The addition of Crop Booster to glyphosate + topramezone + atrazine did not affect crop injury, weed control or corn yield except at 4 WAA when control of common ragweed was reduced by 1%. The tank mix of Crop Booster with glyphosate + thiencarbazone-methyl did not affect crop injury, weed control or corn yield except at 4 WAA when control of green foxtail and annual grasses were reduced by 2% and 1%, respectively. The addition of Crop Booster to bromoxynil/ MCPA had no significant effect on crop injury, weed control or yield of oats or winter wheat.

Highlights

Wheat (Triticum aestivum L.), oats (Avena sativa L.) and corn (Zea mays L.) are three important field cropsCorresponding author.How to cite this paper: Soltani, N., Shropshire, C. and Sikkema, P.H. (2015) Effect of Biostimulants Added to Postemergence Herbicides in Corn, Oats and Winter Wheat
The objective of this study was to evaluate if there is any benefit of adding Crop Booster or RR SoyBooster to post emergence herbicides that are commonly used in corn, oats and winter wheat in Ontario
The addition of Crop Booster to glyphosate did not cause any effect on the control velvetleaf, pigweed species, common ragweed, common lambsquarters and annual grasses except at 4 weeks after herbicide application (WAA) when control of pigweed species was increased by 1% and at 4 and 8 WAA when control of lambsquarters was reduced by 1% (Table 1)

Summary

Introduction

Wheat (Triticum aestivum L.), oats (Avena sativa L.) and corn (Zea mays L.) are three important field cropsCorresponding author.How to cite this paper: Soltani, N., Shropshire, C. and Sikkema, P.H. (2015) Effect of Biostimulants Added to Postemergence Herbicides in Corn, Oats and Winter Wheat. Wheat (Triticum aestivum L.), oats (Avena sativa L.) and corn (Zea mays L.) are three important field crops. (2015) Effect of Biostimulants Added to Postemergence Herbicides in Corn, Oats and Winter Wheat. Canada produces nearly 25,000,000 tonnes of wheat, 3,000,000 tonnes of oats and 11,000,000 tonnes of corn annually making it the 2nd, 7th and 11th largest wheat, oats and corn producer in the world, respectively [1] [2]. Intensive agronomic practices, including proper weed management and plant nutrition, are needed for profitable production of winter wheat, oats and corn. Biostimulants have been marketed by agricultural products companies for enhancing crop growth and yield of various crops for a number of years. Biostimulants have been reported to increase crop efficiency and enhance nutrient availability, water-holding capacity, increase antioxidants, enhance metabolism and increase chlorophyll production in plants [4]-[11]

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