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The only significant pathway for nitrogen loss would have been through microbial growth
Riverside Native Plant treatments recovered on average 96% of the nitrogen tracer spike, and Motte Native Plant modules recovered 78%. In Invasive Plant modules at both sites, the above ground plant material held the majority of the total nitrogen within the plant . The Native Plant treatments at both sites exhibited less variable, smaller ratios of…
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Many factors influence the evolution of herbicide resistance in weed populations
Herbicide resistant weeds have become especially challenging problems in California’s signature cropping systems, which are characterized by little or no crop rotation due to soil limitations or long cropping cycles and relatively few opportunities for mechanical weed control. Although large by specialty crop standards, the approximately 3 million acres devoted to orchard, vineyard and rice production in California…