نتایج جستجو برای: seeding rate

تعداد نتایج: 968225  

2007
Arlen W. Huggins

In the 1990s numerous winter orographic cloud seeding experiments were conducted over Utah’s Wasatch Plateau. Several previously published case studies successfully documented the physical response in clouds and precipitation to ground-based seeding with silver iodide and liquid propane. A previously unpublished case study that shows additional evidence of positive seeding effects is presented ...

2009
Tom Barber Fred M. Bourland Daniel O. Stephenson Jarett Chapman

With the climbing costs of cotton production, producers must ensure optimal returns on their cotton crops in order to make a profit. The groundwork for a high yielding crop has to start with an accurate and efficient planting system to ensure an optimal stand. However, there are a variety of new systems and techniques to incorporate compared to the conventional system that has been used for so ...

Journal: :Journal of economic entomology 2006
L M Dosdall G W Clayton K N Harker J T O'Donovan F C Stevenson

Several agronomic benefits can result from fall seeding of canola (Brassica spp.), but extensive research data are lacking on the potential impact of this practice on infestations of root maggots (Delia spp.) (Diptera: Anthomyiidae), which are major pests of the crop in western Canada. Field experiments making up 13 location by year combinations were conducted in central Alberta, Canada, from 1...

2010
A. M. Schubert

The ability of peanut plants to adjust to wide plant-toplant spacing and the use of more precise mechanical planters have not been thoroughly exploited to reduce seeding rates. The magnitude of plant growth adjustment of two runner peanut cultivars to reduced seeding rate was studied in 1992 and 1993. A precision vacuum planter was used to plant the cultivars GK-7 and Southern Runner (SR) in si...

Journal: :Agronomy 2021

Oat (Avena sativa L.) is an important crop for organic production systems in the upper Midwest, but limited information on optimal nutrient management and seeding rates available. varieties representing three maturity groups were evaluated during 2015 2016 Lamberton, Minnesota organically certified ground previously planted to alfalfa (Medicago L.). Two oat (110 145 kg ha−1), two sources (raw c...

Journal: :journal of agricultural science and technology 2011
m. jafari a. hemmat m. sadeghi

external fluted feed rolls are commonly used in grain drills. the fluted feed roll meters a volume of seeds and does not singulate the seeds as do the precision planters; therefore, there will be inherent variation in the number of seeds delivered per unit of time. this research was conducted to investigate the effect of seed meter drive shaft and ground speeds and outlet positions in a grain d...

2017
Guillaume J. Filion

Seeding heuristics are the most widely used strategies to speed up sequence alignment in bioinformatics. Such strategies are most successful if they are calibrated, so that the speed-versus-accuracy trade-off can be properly tuned. In the widely used case of read mapping, it has been so far impossible to predict the success rate of competing seeding strategies for lack of a theoretical framewor...

Journal: :Crop Science 2023

Lodging can reduce the yield and quality of oats (Avena sativa L.). Root lodging, as opposed to stem is predominant form lodging in oats. Therefore, identifying management practices that enhance root resistance should be prioritized. The objective this study was investigate effect four on oat grain yield, components, quality, observed plant traits contribute resistance. Row spacing seeding dept...

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