Trace metal accumulation in agricultural soils from mineral phosphate fertiliser applications in European long‐term field trials

2021 ◽  
Author(s):  
Benoit Bergen ◽  
Mieke Verbeeck ◽  
Erik Smolders
Keyword(s):  
Trace Metal ◽  
Metal Accumulation ◽  
Agricultural Soils ◽  
Field Trials ◽  
Phosphate Fertiliser ◽  
Mineral Phosphate ◽  
Term Field

scholarly journals Sulphur status in agricultural soils determined using the Mehlich 3 method

2018 ◽  
Vol 64 (No. 6) ◽  
pp. 255-259 ◽  
Author(s):  
Zbíral Jiří ◽  
Smatanová Michaela ◽  
Němec Pavel
Keyword(s):  
Field Experiments ◽  
Agricultural Soils ◽  
Field Trials ◽  
Soil Samples ◽  
Content Category ◽  
Average Decrease ◽  
Archived Samples ◽  
Term Field

Several sets of soil samples were chosen to demonstrate the applicability of the Mehlich 3 extractant for the determination of sulphur (S) in soils. Archived samples from 139 basal soil monitoring plots (BSMS) sampled in 1995 and 2013, samples from eleven long-term field trials sampled in 1981 and 2017, 1167 soil samples from the areas vulnerable to S losses and 720 samples from the non-vulnerable areas sampled in 2010 were chosen for the experiments. Mehlich 3 clearly showed a statistically highly significant decrease in the soil S content caused by reduction of SO<sub>2</sub> emissions in the long-term field experiments from 33 mg/kg in 1981 to 8 mg/kg in 2017 for the median of the untreated controls. Similar results were obtained for BSMS samples, where an average decrease from 26 mg/kg in 1995 to 17 mg/kg in 2013 was found. Mehlich 3 also showed that more than 52% of samples from the areas vulnerable to S losses were in a very low content category in contrast to only 3% of soils from the other areas. Mehlich 3 clearly proved the capacity to distinguish changes in the content of soil S in all studied cases.  

Correlation Between Soil P and Wheat Shoot P Contents in a Network of Hungarian Long‐Term Field Trials

2005 ◽  
Vol 36 (1-3) ◽  
pp. 275-293 ◽  
Author(s):  
Péter Csathó ◽  
Marianna Magyar ◽  
Katalin Debreczeni ◽  
Katalin Sárdi
Keyword(s):  
Field Trials ◽  
Soil P ◽  
Wheat Shoot ◽  
Term Field

scholarly journals Drought response of modern and old oat lines in greenhouse and long-term field trials

1997 ◽  
Vol 6 (2) ◽  
pp. 199-205 ◽  
Author(s):  
Pirjo Mäkelä ◽  
Leena Väärälä ◽  
Riikka Rajalahti ◽  
Ari Rajala ◽  
Pirjo Peltonen-Sainio
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Field Trials ◽  
Drought Response ◽  
Wild Oat ◽  
Greenhouse Experiments ◽  
Plant Breeding Institute ◽  
The University ◽  
Term Field

This study compares the response of old and modern oat (Avena sutiva L.) lines to pre-anthesis precipitation in long-term field trials, and to pre- and post-anthesis drought in the greenhouse. Long-term field trials were carried out at the Experimental Farms of Hankkija Plant Breeding Institute and the University of Helsinki between 1965 and 1988. Grain yield of 12 oat lines (released since 1959) was compared with that of the check lines. The effect of differences in May-June precipitation on grain yield was established for different lines. Greenhouse experiments included 19 oat lines (released since 1921) and three wild species of oat (A. barbata L., A. sterilis max. L. and A. fatua L.). The data from greenhouse experiments were analysed using discriminant analysis in groups of old (released before 1970s), modern, and wild oat types. Ranking of the oat lines according to results from long-term field trials and greenhouse experiments was not consistent; contrary to the field experiments, the old lines tended to be the most drought sensitive when tested in the greenhouse. Therefore, the simple and non-laborious methods used in this study for ranking of drought sensitivity of oat lines are not recommended.

scholarly journals Points to be considered in the establishment of long-term field trials

1964 ◽  
Vol 36 (1) ◽  
pp. 51-55
Author(s):  
Yrjö Pessi
Keyword(s):  
Field Tests ◽  
Soil Surface ◽  
Field Trials ◽  
Soil Characteristics ◽  
Test Area ◽  
Test Plot ◽  
Experimental Station ◽  
Term Field

On the basis of the experience gained in the long-term field tests at the Experimental Station of Leteensuo, some of the factors have been examined which have to be taken into consideration when tests of this kind are established. It is noted that in the course of time the soil may become increasingly inhomogeneous, e.g. owing to sludge brought in by inundations, and owing to the wear of the peat on cultivated peat land. An initial shaping of the soil surface is essential in the case of cultivated peat lands because non-uniform settling of the soil may occur in the course of time in the test area. The soil surface of the different test members may also settle in different degrees, depending on the treatment involved in the test. Because of soil transportation from one test plot to another, caused by the tilling operations, the location and shape of the test plots are of significance in long-term tests intended to clarify questions associated with soil characteristics.

scholarly journals Field-screening Prunus for Longevity in the Southeastern United States

HortScience ◽  
1994 ◽  
Vol 29 (6) ◽  
pp. 673-677 ◽  
Author(s):  
W.R. Okie ◽  
G.L. Reighard ◽  
T.G. Beckman ◽  
A.P. Nyczepir ◽  
C.C. Reilly ◽  
...  
Keyword(s):  
South Carolina ◽  
Prunus Persica ◽  
Southeastern United States ◽  
Field Trials ◽  
Root Knot Nematode ◽  
Short Life ◽  
Wide Range ◽  
Apparent Relationship ◽  
Term Field

Long-term field trials of a wide range of peach [Prunus persica (L.) Batsch] germplasm on two peach tree short-life (PTSL) sites revealed marked differences in survival among lines. Generally, cuttings and seedlings of a given line performed similarly, as did ungrafted seedlings and their counterparts grafted to a commercial cultivar. No apparent relationship existed between a line's chilling requirement and survival. B594520-9 survived best in Georgia and South Carolina, providing significantly greater longevity than Lovell, the standard rootstock for use on PTSL sites. B594520-9 is derived from root-knot-nematode-resistant parentage, and progeny of surviving seedlings have demonstrated root-knot resistance similar to Nemaguard seedlings.

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