Improving lettuce production through utilization of spike wheel liquid injection systems

Mark C. Siemens, Kurt D. Nolte, Ronald R. Gayler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Spike wheel liquid injection systems were developed in the late 1980's as an improved method for applying fertilizer post emergence. Although studies have shown that use of the system provides measurable yield benefits in a variety of crops, limited studies have been conducted in lettuce production systems. This study addresses this shortcoming. The objectives of the project were to determine if spike wheel injection technology can be used in lettuce to 1) improve plant growth, nutrient uptake efficiency and crop yield and 2) determine if the system can be used to deliver soil applied pesticides post emergence. Replicated field trials were conducted in Yuma, Arizona in 2010 to achieve the stated objectives. Use of the spike wheel injector significantly improved mid-season lettuce plant weight and nitrogen uptake levels as compared to conventional knife blade fertilizer application systems. Despite these early advantages, crop yield was not significantly affected by fertilizer applicator method. The data also showed that the soil applied systemic insecticide Coragen can be effectively delivered post emergence using the point injection system. These data were very promising in that it implies that the system could also be used successfully to deliver other soil applied pesticide chemistries post emergence in lettuce crops. This would benefit the industry by greatly increasing the control options growers have for managing pests post emergence. Additional study is needed to confirm/validate the results of this one year study.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011
PublisherAmerican Society of Agricultural and Biological Engineers
Pages1447-1457
Number of pages11
Volume2
ISBN (Print)9781618391568
Publication statusPublished - 2011
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011 - Louisville, KY, United States
Duration: Aug 7 2011Aug 10 2011

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2011
CountryUnited States
CityLouisville, KY
Period8/7/118/10/11

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Keywords

  • Crop production
  • Fertilizer
  • Fungicide
  • Insecticide
  • Lettuce
  • Liquid injection
  • Pesticide
  • Specialty crop
  • Yield

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Siemens, M. C., Nolte, K. D., & Gayler, R. R. (2011). Improving lettuce production through utilization of spike wheel liquid injection systems. In American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011 (Vol. 2, pp. 1447-1457). American Society of Agricultural and Biological Engineers.