sowing Articles
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Statistical analysis of field trials with changing treatment variance
This is a discussion paper that presents no new material but challenges the way that field trials with changing treatment variances have been traditionally analyzed. We argue that one should always expect the variance of yield to change when the yields are obtained from plots with different plant densities. To illustrate, a turnip (Brassica rapa L.) sowing density by sowing date experiment is ...
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Sowing and flowering delays can be an efficient strategy to improve coexistence of genetically modified and conventional Maize
The coexistence between genetically modified (GM) and non-GM maize (Zea mays L.) fields is subjected to regulation in several countries. A strategy to reduce cross-pollination from GM to non-GM fields was evaluated, on the basis of reducing the flowering coincidence by sowing at separate times. The trial included narrow plots in which transgenic maize was sown before, simultaneously, and after ...
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Wheat Trial Report (2014/2015) - Case Study
At Northam in the central wheatbelt of Western Australia in 2014, wheat cv. Eradu was sown into a wheat stubble paddock to evaluate the effects of various rates of fertiliser in combination with Hibrix BB. Agras fertiliser was banded below the seed at sowing at 0, 25, 51, 75 or 99 kg/ha whilst Hibrix BB was applied to half of each plot as a broadcast soil spray at 2.5 L/ha two days after sowing. ...
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Generalizing the sites regression model to three-way interaction including multi-attributes
When a multienvironment trial (MET) is established across several locations and years, the interaction is referred to as a three-way array. Three-way interaction can be studied by means of three-way principal components analysis. In this study, the three-way principal components analysis is adapted to the sites regression model (three-way SREG). The three-way SREG with location and year combines ...
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On-farm evaluation of winter wheat yield response to residual soil Nitrate-N in North China plain
High soil nitrate-N accumulation has been observed in North China Plain (NCP), but it was seldom considered as a N source in N management due to the lack of data on crop response to soil nitrate-N accumulation. A total of 124 on-farm N-response experiments were conducted from 2003 to 2006 in seven key winter wheat (Triticum aestivum L.) production regions of NCP to evaluate wheat yield response ...
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Agronomic performance of different pea cultivars under various sowing periods and contrasting soil structures
Yield variability of spring pea (Pisum sativum L.) in farmers' fields is mainly due to soil compaction at sowing and abiotic stresses during the reproductive period. Winter peas flower earlier, and thus should be less sensitive to abiotic stress at the end of the cycle, but because of their sensitivity to frost they must be sown late in autumn when soils are very wet. Pea breeders are working on ...
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Simulating leaf appearance in rice
Most rice (Oryza sativa L.) simulation models assume that only temperature affects leaf appearance rate (LAR). This assumption ignores results from controlled environment studies that show that LAR in rice is not constant with time (calendar days) under constant temperature. The Streck model, which takes into account age effects on LAR, improved the prediction of leaf appearance in winter wheat ...
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Seasonal infertility: the cause, the cost and can you prevent it from happening?
Still summer and already warning for the upcoming seasonal infertility?! A good understanding of what causes seasonal infertility or the so-called after-summer dip can help in preventing and limiting the negative consequences. What is seasonal infertility? It is the natural phenomenon occurring in September and October when healthy sows spontaneously return to service about 4 weeks after ...
By Ardol BV
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Testimonial Bettapork, Australia: MagFans are whisper quiet
MagFans are whisper quiet and consume far less power than any other similar size fans on our farm. Bettapork in Queensland, Australia, is a 2000 sow full line production with three individual sites for sows, weaners and finishers. Laurie Brosnan is one of the owners of Bettapork and in charge of the production, and Laurie is constantly working to optimize his production, save energy, and increase ...
By DACS A/S
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Bettapork in Queensland, Australia - Testimonial
“MagFans are whisper quiet and consume far less power than any other similar size fans on our farm.” Bettapork in Queensland, Australia, is a 2000 sow full line production with three individual sites for sows, weaners and finishers. Laurie Brosnan is one of the owners of Bettapork and in charge of the production, and Laurie is constantly working to optimize his production, save ...
By DACS A/S
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Northam Wheat Trial – NPK Reduction - Case Study
First of a five year trial producing wheat at reduced rates of NPK (50% to 75%). At Northam in the central wheatbelt of Western Australia in 2013, wheat cv. Eradu was sown into a pasture paddock to evaluate the effects of various rates of fertiliser in combination with Hibrix BB. Agras fertiliser was banded below the seed at sowing at 0, 25, 51, 75 or 99 kg/ha whilst Hibrix BB was applied to half ...
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Emergence of polymer-coated corn and soybean influenced by tillage and sowing date
No tillage often delays soil warming and drying, thus sowing too early in the spring may compromise seed viability due to prolonged exposure to cold and wet soil in the northern Corn Belt. Coating seed with a temperature-activated polymer may circumvent the adverse effects of exposing seeds to cold and wet soil. Germination and emergence of noncoated and polymer-coated corn (Zea mays L.) and ...
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Support optimal weaning through pig housing solutions
As reported in a 2019 article, weaning “represents one of the most critical stages in pig production, which is reflected in the high piglet morbidity and mortality for this period.” Experienced pig farmers know that production initiated with the healthiest piglets is best and supporting their adaptation throughout different phases is also crucial. Yet, what about the management of the ...
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Swine Production Tips and Feeding Strategies to Dodge Temperature Variations : Beating the Heat in Farrowing!
The effects of heat stress on lactating sows has been studied by several research institutions worldwide. We can look at primiparous (first parity) or multi-parous sows but the results are similar (Williams, 2009) For this discussion, let us look at farrowing room environment conditions of 68°F (desired) vs. 77°F (hot). The period that should be most scrutinized is the ambient ...
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Characterization of selected nutrients and bacteria from anaerobic swine manure lagoons on sow, nursery, and finisher farms in the Mid-South USA
Received for publication October 31, 2008. Swine (Sus scrofa domestica) production in the Mid-South USA comprises sow, nursery, and finisher farms. A 2007 packing plant closure started a regional shift from finisher to sow and nursery farms. Changes in manure stored in lagoons and land-applied as fertilizer were expected but were unknown because nutrient and bacterial levels had not been ...
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Scrutinize herd retention by rethinking gilt development
Not everyone will agree with my arguments in this article. However, I’m tired of hearing complaints about current sow mortality rates and general agreement that additional research is needed in gilt development; yet remain disappointed in the lack of tangible, practical strategies that producers can take home and implement at the ‘slat level’ to make meaningful changes in their ...
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Farrowing feeding for sow production: What to consider to improve profitability and productivity
Feeding a Farrowing Sow: What Should we Consider? From feeder costs to feed palatability, here are some of the hot topics to think about when you are choosing the right sow feeding system for your farrowing rooms. Farrowing Feeding Methods Farrowing sows play an essential role in pig production since sow and litter performance can influence the swine industry’s next outcomes. Considering ...
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Comparison of three methods for estimating leaf area index of upland rice cultivars
Nondestructive estimation of leaf area index (LAI) using two canopy analyzers (LAI-2000 and SunScan) was compared with destructively measured LAI for four upland rice (Oryza spp.) cultivars with various types of canopy development during the period from 21 to 56 d after sowing (DAS). For the LAI-2000, LAI was estimated with or without the wide angle reading (Ring 5). When data from 50 and 56 DAS, ...
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A Guide to Optimizing Sow Feed Intake
Creating the optimal environment for farrowing sows can help to minimize the challenges producers face when it comes to maintaining proper body condition and raising healthy piglets, as sow well-being will always be a constant concern within our industry. Improvements to sow feeding are a clear opportunity for improvement to body condition, overall health, increased productivity and overall herd ...
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How to guarantee optimal vegetable growing - a precision seed drill
Precise seeding is the key to production of high-quality crops. MAX PNEUMATIC seed drills are modern machines for seeding of various vegetable species, being differently formed and sized. As a result, it successfully sows almost all kinds of seeds, such as: carrots, parsley, cabbage, radish, onion, beetroot, etc. Moreover, it has been designed to meet the farmers needs and vegetable market ...
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