Nitrogen nutrition of wheat following different crops

Echeverría, Hernán Eduardo; Navarro, Carmen; Andrade, Fernando H.

doi:10.1017/s0021859600068738

Cited by 8 publications

(5 citation statements)

References 22 publications

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“…The high correlation between yield and grain number in our experiments is consistent with many previous results (Boiffin et al, 1981; Echeverria et al, 1992; Fischer, 1993; Abbate et al, 1995). Yet in our experiments grain number was linked to spike number in some cases and to grain number per spike in other cases.…”

Section: Discussionsupporting

confidence: 93%

Intensity and Duration of Nitrogen Deficiency on Wheat Grain Number

Jeuffroy¹,

Bouchard²

1999

Crop Science

104

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We need to understand the effects of N deficiency on yield according to the crop stage at which it occurs In humid temperate climates, N is still a major limiting factor and its duration and intensity, to optimize N fertilization for wheat (Triticum aestivum L.) production. Our objective was to understand and quantify N deficiency effects on the crop grain number under these constraints. In particular, it is essential to to develop optimum N fertilizer management strategies for wheat. In determine whether all N deficiencies are detrimental to this aim, several experiments were conducted on various soil types and yield, or whether some deficiencies can be tolerated climates with 'Soissons' winter wheat. Rates and dates of N fertilizer because they have only minor effects on yield. It is application were varied in each experiment. This resulted in highly already known that in various environmental conditions, variable dynamics of N accumulation in plants, leading to various N including those in which N levels vary (Boiffin et al., deficiencies throughout the crop cycle. Deficiencies were character-1981; Abbate et al., 1995), wheat yield is largely deterized by a N nutrition index (NNI). Seven criteria describing the defimined by the grain number per square meter (GN) of ciency (beginning of deficiency, BD; end of deficiency, ED; duration the crop. However, few studies have quantified differof deficiency, DD; intensity of deficiency, ID; the product ID ϫ DD ϭ ences in GN in response to N nutrition, or in relation IDD; the lack of nitrogen accumulation at anthesis, LNA; and the NNI at anthesis, NNI a ) were estimated for each treatment. Large to the intensity and duration of the N deficiencies. ranges were obtained for each criterion. Treatments also resulted in Little is known about the effects of N nutrition condihighly variable grain numbers. For a N deficient crop, the grain numtions on wheat GN. Abbate et al. (1995) have shown ber decrease relative to the control treatment in the same experiment that if N nutrition is limiting and continuous, i.e., the (RGN) was analyzed according to the deficiency criteria. Whatever wheat crop is subjected to N deficiency from early in the grain number component affected (spike number per per square the crop cycle until after anthesis, GN is strongly and meter or grain number per spike), the RGN appeared to depend on linearly correlated with the amount of N in the spikes the history of the deficiency, the main explicative variable being IDD, at anthesis. However, the effects of fluctuations in N that is, the product of the duration and the intensity of the deficiency. nutrition on GN, such as temporary N deficiency, are The equation RGN ϭ 1.00355-0.00110 ϫ IDD (R 2 ϭ 0.929) allowsunknown. In particular, the effects may vary according the prediction of grain number for wheat crops subjected to various N fertilization strategies.

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Section: Discussionsupporting

confidence: 93%

Intensity and Duration of Nitrogen Deficiency on Wheat Grain Number

Jeuffroy¹,

Bouchard²

1999

Crop Science

104

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“…Previous crop generated differences in soil N availability. Wheat after corn in 1998 produced greater response to N fertilization than wheat after sunflower in 1999 because corn residues produced N immobilization, just as had been reported by Echeverría et al (1992)…”

Section: Resultsmentioning

confidence: 56%

“…Most of the research detecting N losses directly from aerial plant parts was performed with 15 N‐labeled fertilizer (Harper et al, 1987; Palta and Fillery, 1993; Bashir et al, 1997). Losses of N from aboveground parts of wheat plant during grain filling have been attributed to a variety of factors, including losses of plant material (Daigger et al, 1976; Echeverría et al, 1992), leaching by rainfall (Wetselaar and Farquhar, 1980), and NH 3 volatilization from senescing leaf tissue (Harper et al, 1987; Parton et al, 1988).…”

mentioning

confidence: 99%

Timing of Nitrogen Fertilization in Wheat under Conventional and No‐Tillage System

Melaj

Echeverría²,

López

et al. 2003

Agronomy Journal

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“…Conversely, application of the highest nitrogen level (80 kg/ fed) to the second and fourth cropping systems produced the highest tillers numbers (435.71 and 439.83), respectively. These results might be due the value of legumes on the following crop as soil suppliers with organic matter and available organic nitrogen and subsequent reduction of wheat reliance on chemical nitrogen fertilizer (Echeverria et al, 1992).…”

Section: Effect Of Cropping Systems × Nitrogen Levels Interactionsmentioning

confidence: 99%

“…The value of legumes inclusion in sequential cropping systems has been attributed to the contribution they make to the following crop (soil supply with organic matter and available organic N) and reduction of its reliance on chemical N fertilizers (Echeverria et al, 1992). Soybean, despite being a legume crop, is usually considered a soil self destructive crop where it removes most of the N fixed by its harvested portions to leave soil with very little residual N (Mc Coll, 1989 andKupper, 2002).…”

Section: Introductionmentioning

confidence: 99%

Effect of Cropping Systems and Nitrogen Fertilization Levels on Growth Ad Yield of Giza 168 Wheat Cultivar

El-Genbeehy

Allah

EL-Zaher

2009

Journal of Plant Production

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Two field experiments were carried out during the two successive seasons of 2005/06 and 2006/07 at Agricultural Research Station, Faculty of Agriculture, Alexandria University, to evaluate Giza 168 wheat cultivar response to different cropping systems and nitrogen fertilizer levels. The results indicated that, cropping systems including one cut type berseem and/ or soybean significantly decreased weeds dry weight and increased number of tillers and spikes per square meter, 1000grain weight and grain yield per feddan in the two seasons. Increasing nitrogen levels up to 80 kg per feddan, significantly decreased weeds dry weight and increased plant height, number of tillers and spikes per square meter, spike length, grain weight, number of grains per spike, 1000-grain weight and grain yield per feddan in both seasons. Application of 80 kg N/ fed. to the cropping systems containing leguminous crops especially the one cut berssem and soybean produced the heaviest grains, highest number of tillers per square meter and grain yield per feddan in the first, second and both seasons, respectively.

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Nitrogen nutrition of wheat following different crops

Cited by 8 publications

References 22 publications

Intensity and Duration of Nitrogen Deficiency on Wheat Grain Number

Intensity and Duration of Nitrogen Deficiency on Wheat Grain Number

Timing of Nitrogen Fertilization in Wheat under Conventional and No‐Tillage System

Effect of Cropping Systems and Nitrogen Fertilization Levels on Growth Ad Yield of Giza 168 Wheat Cultivar

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