Impact of tillage, seeding rate and seeding depth on soil moisture and dryland spring wheat yield in Western Siberia

Kühling, Insa; Redozubov, Dmitry; Broll, Gabriele; Trautz, Dieter

doi:10.1016/j.still.2017.02.009

Cited by 48 publications

(34 citation statements)

References 53 publications

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“…Studies were conducted along the highways Tyumen-Omsk and Tyumen-Khanty-Mansiysk. Employees of the Department of soil science and Agrochemistry of the State Agrarian University of Northern Trans-Urals have studied in detail the fields adjacent to the roads in order to establish the classification of soil plots.For 100 kilometers of each highway the following soils were defined: Tyumen-Khanty-Mansiysksod-podzolic and gray forest soils; Tyumen-Omsk -leachedchernozems and meadow saline soils [8,9]. The similarity of soil types in areas with different distance from the roads was determined by the structure of the soil profile and properties of parent rocks.…”

Section: Methodsmentioning

confidence: 99%

The impact of transport infrastructure on ecological status of arable land in Western Siberia

Eremina

2018

MATEC Web Conf.

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The use of deicing compounds and car exhaust have a negative impact on the main indicators of arable fertility.The purpose of the research was to study the physical properties of arable land and crop yields at different distances from the roads. Four soils were studied: sod-podzolic, gray forest, leached сhernozem and meadow saline. Soil sampling was carried out along the Tyumen -Omsk and Tyumen -Khanty-Mansiysk highways. It was found that at a distance of 10 meters from the highway structural and aggregate composition of high-humus soils differs from the control, located 200 meters. At a distance of 50 meters or more from the road, physical indicators of arable land come back to normal. The sections adjacent to the roads up to 10 meters wide are overfilled to 1.57 g/cm3, which in the conditions of Western Siberia can cause surface waterlogging. The annual loss of grain from the negative impact of transport infrastructure on the site length of 1 kilometer and a width of 20 meters on leached сhernozem is 5.0 tons. At market grain prices in the amount of $140, the annual loss of farmers corresponds to $1400 for each kilometer of the road passing through the сhernozem fields.

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Section: Methodsmentioning

confidence: 99%

The impact of transport infrastructure on ecological status of arable land in Western Siberia

Eremina

2018

MATEC Web Conf.

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“…Genome wide association studies were performed using 33,146 (MAF>0.01) and 23,193 (MAF>0.05) genetic markers, respectively in TASSEL [5]. Different statistical models were used to calculate Pvalues for putative MTAs which included population structure (Q) and the kinship matrix (K) to account for population structure to avoid spurious associations.…”

Section: Association Analysismentioning

confidence: 99%

“…If seeds are sown at a depth greater than their coleoptile length, it may result in lower emergence rate, reduced early growth, fewer tiller numbers, and decreased grain yield [11,38,43]. In agricultural growing areas prone to drought, the topsoil 3 moisture can be insufficient for seed germination, and seeds need to be sown deeper to access enough moisture [23,44] and lower temperatures [25]. Therefore, the varieties with longer coleoptiles are preferable in water-limited growing regions; for example, winter wheat grown in the low water supply areas of the Pacific Northwest of the United States are sown at depth of 10 to 20 cm [45].…”

Section: Introductionmentioning

confidence: 99%

Genome-wide association mapping reveals novel genes associated with coleoptile length in a worldwide collection of barley

Luo

Hill

Zhou

et al. 2020

Preprint

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BackgroundDrought is projected to become more frequent and severe in a changing climate, which requires deep sowing of crop seeds to reach soil moisture. Coleoptile length is a key agronomic trait in cereal crops such as barley, as long coleoptiles are linked to drought tolerance and improved seedling establishment under early water-limited growing conditions. ResultsIn this study, we detected large genetic variation in a panel of 328 diverse barley (Hordeum vulgare L.) accessions. To understand the overall genetic basis of barley coleoptile length, all accessions were geminated in the dark and phenotyped for coleoptile length after 2 weeks. The investigated barleys had significant variation for coleoptile length. We then conducted genome-wide association studies (GWASs) with more than 30,000 molecular markers and identified 8 genes and 12 intergenic loci significantly associated with coleoptile length in our barley panel. The Squamosa promoter-binding-like protein 3 gene (SPL3) on chromosome 6H was identified as a major candidate gene. The missense variant on the second exon changed serine to alanine in the conserved SBP domain, which likely impacted its DNA-binding activity. ConclusionThis study provides genetic loci for seedling coleoptile length along with candidate genes for future potential incorporation in breeding programmes to enhance early vigour and yield potential in water-limited environments.

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“…A full-factorial field trial was conducted on a farmer's field to test adaptations of tillage (conventional tillage 'CT' vs. no-tillage 'NT'), seeding depth (deep 6.5 cm vs. shallow 4.5 cm) and seeding rate (high 600 grains/m 2 vs. reduced 450 grains/m 2 ) for potential to increase water use efficiency and grain yield in spring wheat. Results showed that high seeding rates resulted in more reproductive ears whilst reduced seeding rates produced more grains [17] . The highest yields of 3.19 t/hm 2 was observed in 2014 with NT, deep seed placement and high seeding rate, and 3.82 t/hm 2 in 2015 with NT, deep seed placement and reduced seeding rate, respectively.…”

Section: Introductionmentioning

confidence: 99%

Development and evaluation of a low-cost precision seeding control system for a corn drill

Yin

Noguchi

Yang

et al. 2018

International Journal of Agricultural and Biological Engineering

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Precision seeding requires that the corn drill drop seeds into the soil by a specific in-row spacing while its travelling speed fluctuates due to unevenness of the field ground. This paper presents a low-cost precision seeding control system for a conventional corn drill with mechanical metering devices of finger-pickup type. A median filtering method was implemented in the control system to process measurements from a rotary encoder in order to acquire stable values of the corn drill travelling speed. The metering unit was driven by an electric motor controlled by the metering ECU according to the actual travelling speed and the desired in-row spacing in real-time. A user interface was programmed to communicate with ECUs for configuring parameters and displaying operating information during working. The newly-developed precision seeding control system was first calibrated in terms of speed measurement and control for two ECUs. Experiments were conducted on a seeding test platform in the laboratory for evaluating its accuracy in dropping seeds by giving different in-row spacing under different travelling speeds of the conveyor sticky belt. Results showed that the average spacing error was less than 2 cm and the maximum RMS error was 0.78 cm for all spacing values including 25 cm, 30 cm and 35 cm under the travelling speed of 1.0-8.0 km/h. These indicated that the low-cost precision seeding control system worked in a both accurate and stable way.

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Impact of tillage, seeding rate and seeding depth on soil moisture and dryland spring wheat yield in Western Siberia

Cited by 48 publications

References 53 publications

The impact of transport infrastructure on ecological status of arable land in Western Siberia

The impact of transport infrastructure on ecological status of arable land in Western Siberia

Genome-wide association mapping reveals novel genes associated with coleoptile length in a worldwide collection of barley

Development and evaluation of a low-cost precision seeding control system for a corn drill

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