Abstract
Agronomic practices, climatic variables, and soil conditions are key factors in crop productivity. Although the effects of soil chemical properties and water and agronomic crop management are known, there is little information about effective soil depth and its influence on crop productivity. Since most crop fertilization systems are based on the productive potential associated with climatic conditions and chemical properties of the first 20 cm of soil depth, the objective of this study was to determine the importance of effective depth in terms of increasing fertilization rates on durum wheat (Triticum turgidum L. var. durum) productivity. Two experiments were conducted in the 2006-2007 season in the Santa Rosa Experimental Station (7154' S, 3631' W, 220 m a.s.l.) of the Instituto de Investigaciones Agropecuarias (INIA) located in south central Chile. We used the hard wheat cvs. Llareta-INIA and Corcoln-INIA because both respond differently to soil physicochemical properties. Each cultivar was sown in sectors with different depths: 1) 0.45 m depth, silt loam on river material and 2) 1.0 m depth, loam on deep sediments. Fertilization was: 1) control without fertilization, 2) basal fertilization (BF) based on P, K, Ca, Mg, S, B, and Zn plus 90 kg N ha -1 , and 3) BF plus 210 kg N ha -1 . Grain yield, plant height, and number of stems m -2 were positively affected by increasing depth of soil profile. The increasing fertilization rate affected grain yield and plant height. Grain yield for cv. Corcoln-INIA had a greater response than cv. Llareta-INIA when soil depth was increased.
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Claims 3
Claim · model-written summary
Increasing soil profile depth positively affected grain yield, plant height and number of stems per m2.
- Taxon
- durum wheat
Triticum turgidum subsp. durume0 - Treatment
- increasing depth of soil profilee1
- Outcome
- Grain yield, plant height, and number of stems m -2e1
- Direction
- positivelye1
- Setting
- south central Chilee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“determine the importance of effective depth in terms of increasing fertilization rates on durum wheat (Triticum turgidum L. var. durum) productivity”
e1“Grain yield, plant height, and number of stems m -2 were positively affected by increasing depth of soil profile”
e5“located in south central Chile”
Claim · model-written summary
The increasing fertilization rate affected grain yield and plant height.
- Taxon
- durum wheatTriticum turgidum subsp. durume0
- Treatment
- increasing fertilization ratee2
- Outcome
- grain yield and plant heighte2
- Comparator
- control without fertilizatione3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“determine the importance of effective depth in terms of increasing fertilization rates on durum wheat (Triticum turgidum L. var. durum) productivity”
e2“The increasing fertilization rate affected grain yield and plant height”
e3“Fertilization was: 1) control without fertilization”
Claim · model-written summary
Grain yield for cv. Corcoln-INIA had a greater response than cv. Llareta-INIA when soil depth was increased.
- Taxon
- durum wheatTriticum turgidum subsp. durume0
- Material
- Corcoln-INIAe4
- Treatment
- soil depth was increasede4
- Outcome
- Grain yielde4
- Direction
- greatere4
- Comparator
- Llareta-INIAe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“determine the importance of effective depth in terms of increasing fertilization rates on durum wheat (Triticum turgidum L. var. durum) productivity”
e4“Grain yield for cv. Corcoln-INIA had a greater response than cv. Llareta-INIA when soil depth was increased”
The same questions in other papers
soil · yield · Triticum turgidum (rivet wheat)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.