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Lingxiao Zhang and S Kyei-Boahen

want to capitalize on the early market. One of the many challenges producers face when considering new crops is the lack of reliable profitability estimates. Differences in production practices and harvest cost greatly influence returns, and in

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Chenping Xu and Beiquan Mou

-Guerrero et al., 2008 ; Prapagdee et al., 2007 ; Xu et al., 2007 ). In addition, chitosan has become of interest as a crop biostimulant suitable for use in sustainable agriculture ( Pichyangkura and Chadchawan, 2015 ; Sharp, 2013 ). Extensive application of

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Craig M. Hardner, Marisa Wall, and Alyssa Cho

Macadamia is a rapidly expanding international tree nut crop industry, although it represents less than 2% of current world nut production. Macadamias produce delicate, high-valued kernels ( Anon, 2018 ). Macadamia F. Muell is a genus in the

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Theodore J.K. Radovich, Archana Pant, Ian Gurr, Ngyuen V. Hue, Jari Sugano, Brent Sipes, Norman Arancon, Clyde Tamaru, Bradley K. Fox, Kent D. Kobayashi, and Robert Paull

narrowing the range of recommended rates for specific crops and soil types in Hawai’i. Currently, there is a single plant in the state producing tankage at an approximate rate of 55 Mg per month. Increased production will be necessary if tankage is to serve

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Julián Miralles-Crespo and Marc W. van Iersel

industry will also need to comply with existing and new laws, regulating the environmental impact of production ( Fernandez et al., 2009 ). Sustainable ornamental crop production must include appropriate irrigation practices. Excessive irrigation results in

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Andrew Koeser, Sarah T. Lovell, Michael Evans, and J. Ryan Stewart

water in horticultural production. Deficit irrigation is largely limited to field-grown crops and large-container production, given the ability of the plants to draw upon relatively large soil moisture reserves ( Fereres and Soriano, 2007 ; Fereres et

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Rahmatallah Gheshm and Rebecca Nelson Brown

, extremely high land values have resulted in most farms being land limited, and agricultural production is dominated by high-value specialty crops and livestock [U.S. Department of Agriculture (USDA), 2019]. Saffron crocus has the potential to be a good fit

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Chenping Xu and Beiquan Mou

-term soil fertility and crop production. The use of organic soil amendments to improve soil fertility and enhance crop yield has gained considerable momentum for agroecological sustainability ( D’Hose et al., 2012 ; Emmerling et al., 2010 ; Hargreaves et

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Tanner Donahoo, Lisha Zhang, Matthew Cutulle, and Abolfazl Hajihassani

, 2013 ; Singh et al., 2017 ). Moreover, over the past 30 years, grafting has been widely adopted in European and Asian countries, where intensive production (continuous cropping) is widespread ( Barrett et al., 2012 ; Rysin and Louws, 2015

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Francesco Di Gioia, Monica Ozores-Hampton, Jason Hong, Nancy Kokalis-Burelle, Joseph Albano, Xin Zhao, Zack Black, Zhifeng Gao, Chris Wilson, John Thomas, Kelly Moore, Marilyn Swisher, Haichao Guo, and Erin N. Rosskopf

Soilborne fungal pathogens, nematodes, and weeds represent some of the most important biotic factors limiting vegetable crop production and profitability in the world. After the phaseout of methyl bromide, although other chemical soil fumigants (CSF