Tetflupyrolimet treatments had complete or near complete control of Echinochloa spp. by 14 DAT, but by 56 DAT, complete control was observed in all treatments regardless of tetflupyrolimet application timing. The grower standard treatment had near complete control of bearded sprangletop at 14 DAT, which later increased to complete control by 56 DAT. Treatments including […]
Tag: cannabis cultivation
Plant sensitivity to glyphosate was reduced under high temperatures and elevated CO2 levels
Glyphosate was suggested to cause inhibition of photosynthetic CO2 assimilation as well as a decrease in intermediates of the photosynthetic carbon reduction cycle. Shikimic acid, one of the main products in the EPSPS pathway, is a precursor of pigments, defense compounds, lignin and other important molecules in plants. Interestingly, glyphosate injury was also found to be […]
Classifications were conducted at the pixel level in raster format
California’s grasslands have been dominated by naturalized exotic forage grasses for 250– 300 years, but nonetheless serve as quintessential examples of “working landscapes” that both support rich biodiversity and provide essential rangeland feed for California’s livestock industry. However, the more recent invasion of two noxious weedy grasses—Elymus caput-medusae and Aegilops triuncialis—into the naturalized forage grass-dominated […]
Precision agriculture requires accurate plant or seed distribution across a field
This distribution is to be optimized according to the size and shape of the area in which nutrients and light are provided to plant to obtain the maximum possible yield. These factors are controlled by the spacing between crop rows and the spacing of plants/seeds in a row. For many crops, row spacing is determined […]
Scout fields firequently and be vigilant for patterns that indicate resistance
As more effective herbicides have become available, the need for cultivation has decreased. Over the past two decades, many growers have successfully eliminated cultivation, reducing equipment and labor costs, moisture loss, root damage, and subsequent weed flushes. However, eliminating cultivation can lead to more dependence on herbicides, which may hasten the development of herbicide-resistant weeds.Field […]
Weed control with many of the available alternatives is generally not as reliable as with methyl bromide
The initial size of seedlings was also significantly and positively correlated with subsequent survival.In previous research, tree shelters consistently promoted the height growth of artificially planted blue oak seedlings . This accelerated growth results from environmental changes within the tubes — including elevated CO2 levels, increased humidity and higher temperatures — as well as protection […]
Aboveground biomass contained most of the nitrogen from legume green manure
The primary study objective was to quantify the effect of cover crops and amendments on soil fertility, potato yield and potato pests.Two cover crop studies were conducted at IREC — a study begun in 2014 that evaluated mid-summer cover crops and a study begun in 2016 that evaluated covercrops planted in spring, mid-summer and fall. […]
This study suggests that switch grass is able to tolerate drought by mining deep soil moisture
A preintroduction evaluation can be performed in tandem with typical agronomic yield trials. This approach can both quantify ecological risk and assess the suitability and economic performance of the species within a particular region. To assess the invasive potential of any proposed bio-fuel species, including switch grass in California, we propose a seven-step evaluation protocol . These evaluations should […]
The simplest price provision offers a set price per unit of biomass throughout the duration of the contract
In addition to relative performance incentives and the use of fieldmen as means to address moral hazard problems without shifting additional, exogenous risk to producers, pricing mechanisms can reallocate risk/minimize cost, while also facilitating access to traditional risk management strategies. The choice of pricing models offered in a biomass production contract can therefore have important implications […]
Asset leasing provides farmers another traditional risk management strategy
As the industry evolves, a hybrid structure is likely to emerge, in which end-users closely cooperate with producers through long-term contracting, rather than as direct owners or operators of biomass farms. We term this a “vertically coordinated” industry model. A vertically coordinated model presents several benefits over a vertically integrated system used in other industries dependent […]