Long-Term Effects of Tillage, Nitrogen, and Rainfall on Winter Wheat Yields in the Pacific Northwest

Camara, K. M.; Payne, William A.; Rasmussen, P. E.

doi:10.2134/agronj2003.0828

Cited by 63 publications

(44 citation statements)

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“…This is due to greater nutrient availability in fertilized stubble incorporated plots (Camara et al, 2003;Malhi et al, 2006). Retention of crop residues close to soil surface might had increased organic carbon and released nutrients (Singh et al, 2004), lowered evapotranspiration (Ortega et al, 2002), conserved greater soil water (Cantero-Martinez et al, 1995;Wilhelm et al, 2004), decreased soil temperature (Badaruddin et al, 1999), decreased soil pH (Heenan, 2005), greater aggregate stability and better resistant to soil erosion (Rasmussen, 1999) and thus excelled yield and yield component efficiency.…”

Section: Discussionmentioning

confidence: 99%

Response of Tillage, Nitrogen and Stubble Management on Phenology and Crop Establishment of Wheat

Basir¹,

Jan²,

Arif³

et al. 2015

IJAB

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To cite this paper: Basir, A., M.T. Jan, M. Arif and M.J. Khan, 2016 ) application. The objective of the study was to examine the treatment effects on phenology, establishment and yield of succeeding wheat crop. Result showed that wheat phenology except days to emergence was not affected by different TS however; early emergence (10 days) was observed in minimum tillage rather than conventional and deep tillage system. Nitrogen fertilization (120 kg N ha -1 ) enhanced days to phenological observations, while no significant variation in days to emergence and physiological maturity were recorded among SM practices, however; stubble incorporation delayed the booting and anthesis stage compared to burning and removing. Minimum tillage improved emergence, tillers and grain yield (3134 kg ha -1 ) compared to deep tillage systems. Nitrogen fertilization at the rate of 120 kg ha -1 and maize stubble incorporation prior to wheat sowing also improved emergence, tillers, plant height and grain yield compared to control and stubble removal or burning. It is concluded from current study that maize stubble incorporation with recommended dose of fertilizer N (120 kg ha -1 ) prior to wheat sowing delayed phenology, and improved wheat establishment and yield under minimum tillage in a continuous cereal based cropping system instead of stubble burning and removal.

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Section: Discussionmentioning

confidence: 99%

Response of Tillage, Nitrogen and Stubble Management on Phenology and Crop Establishment of Wheat

Basir¹,

Jan²,

Arif³

et al. 2015

IJAB

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“…The main plot treatments differed in tillage equipment, tillage depth, and surface residue cover at the time of seeding. The MP, DP, and SW tilled soil to a depth of approximately 23, 10, and 15 cm, and left 7, 34, and 43% residue cover, respectively, on the soil surface at the time of seeding (Camara et al, 2003). Primary tillage in the fallow plots was conducted in late March to early April on the stubble left undisturbed since the previous year's crop harvest.…”

Section: Study Site and Treatmentsmentioning

confidence: 99%

“…The experiment was revised in 1952, 1962, and 1988. In the 1952-1953 (Camara et al, 2003). Therefore, the S application was discontinued in 1963 in all S-applied treatments.…”

Section: Study Site and Treatmentsmentioning

confidence: 99%

Soil pH, Soil Organic Matter, and Crop Yields in Winter Wheat–Summer Fallow Systems

2017

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Soil acidifi cation has become a major environmental challenge for crop production in the inland Pacifi c Northwest (iPNW). We evaluated the eff ects of tillage and N-fertilizer management on soil pH, soil organic carbon (SOC), soil N, and crop yields from 1995 through 2010 in an ongoing long-term experiment in eastern Oregon. Tillage systems included moldboard plow (MP), disk plow (DP), and subsurface sweep (SW) and N-fertilizer rates were 0, 45, 90, 135, 180 kg N ha -1 crop -1 in a dryland winter wheat (Triticum aestivum L.)-summer fallow (WW-SF) system. Soil pH, SOC, and N were monitored in 1995 and 2010, and crop yields were monitored every other year. Soil pH was lower in the higher N rate treatments. Long-term N fertilizer application increased soil acidity in 0-to 10-cm depth by 0.3, 0.2, and 0.3 units in MP, DP, and SW, respectively, for every 1000 kg N applied through ammonical N fertilizers. Soil pH was higher in DP than MP in 10-to 20-and 20-to 30-cm depth profi les. Th e SOC and N concentrations in the top 30-cm depth were lower in 2010 than in 1995 across all treatments. Wheat yield increased signifi cantly with increase in N rates from 0 to 90 kg N ha -1 crop -1 . Th ere were no further yield increases above 90 kg N ha -1 crop -1 . Soil acidifi cation, SOC and nutrient dynamics should be carefully monitored in cropping systems using ammonical N fertilizers, particularly under high rate of N application and reduced tillage.

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“…Application of fertilizers to various crops is an important component of integrated weed management system (Blackshaw, 2005) and manipulation in fertilizer doses to crops can reduce the weeds' interference (Di Tomasso, 1995). Nitrogen is the major nutrient added to increase crop yield (Camara et al, 2003), altered soil nitrogen levels can affect crop-weed competitive interactions. Depending on the weed species and density, addition of nitrogen may increase the competitive ability of weeds more than the crop with little or no increase in crop yield (Carlson & Hill, 1985;Dhima & Eleftherohorinos, 2001).…”

Section: Introductionmentioning

confidence: 99%

Influences of Different Nitrogen Levels on Competition between Spring Wheat (Triticum aestivum L.) and Wild Mustard (Sinapis arvensis L.)

Behdarvand¹,

Chinchanikar²,

Dhumal³

2012

JAS

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A field experiment was carried out to investigate the effects of different nitrogen levels on interspecific competition between wild mustard and spring wheat. The experiment was laid out in randomized complete block design under a split plot arrangement, with three replications. The experiment comprised of three nitrogen levels (90, 150 and 210 kg ha -1 ) assigned to main plots and four wild mustard densities such as 0, 5, 10 and 15 plants m

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Long-Term Effects of Tillage, Nitrogen, and Rainfall on Winter Wheat Yields in the Pacific Northwest

Cited by 63 publications

References 0 publications

Response of Tillage, Nitrogen and Stubble Management on Phenology and Crop Establishment of Wheat

Response of Tillage, Nitrogen and Stubble Management on Phenology and Crop Establishment of Wheat

Soil pH, Soil Organic Matter, and Crop Yields in Winter Wheat–Summer Fallow Systems

Influences of Different Nitrogen Levels on Competition between Spring Wheat (Triticum aestivum L.) and Wild Mustard (Sinapis arvensis L.)

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