seeding rate Articles
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Effect of seeding date, seeding rate, and seed treatments on saltgrass seed germination and establishment
Inland saltgrass [Distichlis spicata var. stricta (L.) Greene], native to the western United States, has potential for use as a turfgrass and a revegetation species on saline sites. This study was conducted (i) to evaluate the effect of seeding date, seeding rate, and seed treatments on saltgrass establishment; and (ii) to determine the required accumulative growing degree days (GDD) for ...
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Plant density effect on reduced linolenic acid soybean cultivars
Demand for soybean [Glycine max (L.) Merr.] with modified oil composition has led to the development of new soybean cultivars with reduced levels of linolenic acid. The objective of this study was to determine the effect of plant density on linolenic acid of soybean bred to have reduced linolenic acid concentration (30 g kg–1, low-linolenic) and of traditional soybean cultivars (70 g kg–1, ...
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Soybean seed yield response to planting date and seeding rate in the upper Midwest
Planting date and seeding rate are agronomic decisions that producers can use to maximize soybean [Glycine max (L) Merr.] seed yield and economic return. Current information on the response to planting date and seeding rate may underestimate the yield penalty for delayed planting in northern climates and overestimate the seeding rate required to optimize yield. The objective was to determine the ...
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Effect of row spacing and seeding rate on soybean yield
Soybean [Glycine max (L.) Merr.] yield response to narrow row spacing has been consistently positive in the upper Midwest and new split-row planters have made narrow row soybean production feasible, yet adoption has been slow in Iowa. Wide (76-cm) and narrow (38-cm) row spacing and four seeding rates (185,000; 309,000; 432 000; and 556,000 seeds ha–1) were evaluated at three locations during ...
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Seeding rate and nitrogen management effects on spring wheat yield and yield components
Seeding rate, N level, and N application timing are key management factors for spring wheat (Triticum aestivum L.) production in North Dakota. Experiments were conducted under dryland (Casselton, ND) and irrigated (Carrington, ND) conditions in 2003 to 2005 to determine the optimum combination of seeding rate and N management to maximize yield of hard red spring wheat (HRSW). Treatments consisted ...
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Hulless barley seeding rate effects on grain yield and yield components
Recent efforts to expand markets for winter barley (Hordeum vulgare L.) in the mid-Atlantic have focused on hulless types due to higher energy density. The exposed endosperm of hulless barley makes damage more likely than with hulled barley, and emergence is typically lower. Information to determine the optimum seeding rate for winter hulless barley is presently unavailable. Experiments were ...
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Rice seeding and nitrogen rate effects on yield and yield components of two rice cultivars
Field research was conducted for 2 yr to investigate the relationship between rice (Oryza sativa L.) seeding rate and preflood nitrogen (N) rate utilizing long-grain rice cultivars planted into clay and silt loam soils. Rice cultivars included ‘Cheniere’ and ‘Wells’ seeded at 162, 323, and 646 seeds m–2. Nitrogen was applied before flooding at 67, 134, and 202 kg ha–1. No response to soil texture ...
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Yield, yield components, and forage nutritive value of alfalfa as affected by seeding rate under irrigated conditions
Persistence is a critical component of alfalfa (Medicago sativa L.) crop yield. Our objective was to determine the effect of seeding rate on alfalfa persistence, yield, and yield components and how they evolved over time in irrigated areas with long growing seasons. Two alfalfa cultivars were seeded at four seeding rates (10, 20, 30, and 40 kg ha–1), in three consecutive experiments, and ...
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Effect of seeding rate and planting arrangement on rye cover crop and weed growth
Weed growth in winter cover crops in warm climates may contribute to weed management costs in subsequent crops. A 2-yr experiment was conducted on an organic vegetable farm in Salinas, California, to determine the impact of seeding rate and planting arrangement on rye (Secale cereale L. ‘Merced’) cover crop growth and weed suppression. Each year, rye was planted in October at three rates (90, ...
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Your Cereal Seeding Rate Matters Too
24 years ago when I first started in this business, almost every farmer planted canola at exactly the same rate. No matter how sandy or loamy, high or low moisture, productive or thin-yielding the land, and no matter how plump or slim the seed, we planted 10 acres to the bag. But, because canola seed is expensive and canola companies were invested in optimal production, seeding rate practices ...
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Forage yield and competition indices of Berseem clover intercropped with Barley
Berseem clover (Trifolium alexandrinum L.) should be intercropped with cereals for forage quality improvement, livestock bloat avoidance, and fertilizer requirements reduction. A 2-yr field study was conducted using a cultivar of berseem clover and two barley (Hordeum vulgare L.) cultivars as sole crops compared to six berseem clover–barley intercrops planted at three seeding rates (250–338, ...
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Dryland performance of sweet sorghum and grain crops for biofuel in Nebraska
Sweet sorghum [SS; Sorghum bicolor (L.) Moench] is a potential biofuel crop for the Great Plains. Sweet sorghum was compared with corn [Zea mays (L.)] and grain sorghum for potential ethanol yield, energy use efficiency, and greenhouse gas (GHG) emissions at seven dryland site-years in Nebraska. Seasonal rainfall ranged from approximately 340 to 660 mm. Soils were deep with medium texture at all ...
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4 tips for successful potato establishment this spring
Alistair Neill, a Prime Agriculture potato agronomist based in Norfolk, shares his four essential tips on getting potato crops off to the best start possible, beginning with ensuring good crop establishment.1. Cut back on cultivations Soil compaction can jeopardise potato establishment and yield because it restricts root growth, consequently limiting water and nutrient uptake. Therefore, if it’s ...
By Crop4Sight
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How to get seed rates spot on for target market and harvest scheduling
Potato agronomy is complex and requires a lot of planning, monitoring and evaluation throughout the production process. CPM finds out how digital agronomy tool Crop4Sight can help in all three areas as preparation for the 2023 season gathers paceIf you fail to prepare, you prepare to fail – an adage that is very relevant when thinking about potato crop establishment, with half the agronomy done ...
By Crop4Sight
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Tiller contribution to spring wheat yield under varying seeding and nitrogen management
Hard red spring wheat (HRSW) (Triticum aestivum L.) grain yield is comprised of the combined production of the main stem and tiller spikes. Experiments were conducted under dryland (Casselton, ND) and irrigated (Carrington, ND) conditions from 2003 to 2005 to determine tiller development and the relative contribution of main and tiller wheat spikes to final grain yield under varying cultivar, ...
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Evaluation of management practices for grain amaranth production in eastern canada
Grain amaranth (Amaranthus spp.) is a C4 dicotyledonous pseudocereal crop that was widely cultivated in pre-Columbian America. It was successfully introduced in many regions with contrasting environmental conditions. The introduction of grain amaranth in eastern Canada would represent an opportunity for diversification. A study was conducted to evaluate management practices for grain amaranth ...
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This Spring, Make your Seed Work Harder for you
Just like other investments I make, I want my seed to work as hard as possible for me to see the return in the fall. Of course, the decisions I make between now and then influence how good of a harvest season I’ll have. Over the years, using variable rate seed prescriptions has helped ensure I’ve got the right amount of seed in the right areas of the field to make a return. Now, ...
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Comparison of certified and farm-saved seed on yield and quality characteristics of Canola
Relatively high seed prices and low canola (Brassica napus L.) grain prices created a controversy over using farm-saved seed from hybrids. Agronomic implications of saving seed from a canola crop were investigated by planting certified seed and saved-seed of an open-pollinated and a hybrid canola cultivar at eight site-years in Saskatchewan and Alberta, Canada. In one series of experiments ...
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SOYPOD: a model of fruit set in soybean
The soybean [Glycine max (L.) Merr.] plant matches its reproductive potential to environmental conditions by adjusting the number of fruits and seeds that it produces. This adjustment is an important, but not well understood, part of the yield production process. Developing a model of fruit set will contribute greatly to a better understanding of the determination of fruit number and yield. The ...
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Safe seed-placed fertilizer practices and equipment limits
When it comes to applying seed-placed fertilizer, it is important to find the suitable application rate for each specific soil type and composition. But it is also important to understand that seeding equipment and technology is a factor, and may impact growers’ fertilizer rates. The seed-safe rate for fertilizers relies on numerous factors. Crop choice, soil composition, pH levels, ...
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