Effect of foliar sprayings of urea during or after anthesis on dry matter and nitrogen accumulation in the grain of two wheat cultivars ofT. aestivum L.

Sarandón, Santiago Javier; Gianibelli, M. C.

doi:10.1007/bf01064230

Cited by 5 publications

(3 citation statements)

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“…To decrease these aleatory variations of yield and grain N content farmers often use higher rates of N fertilizer than those required to satisfy the demand, and as a consequence there is an increase in the risk of leaching. To reduce N losses several reports recommended applications of N to be postponed to later stages of the growing season, which favors protein build-up in the grain over yield (Sarandón and Gianibelli, 1992), and enhances the bread-making quality of the flour (Altman et al, 1983;Gooding et al, 1991;Gooding and Davies, 1992). However, the effect is a function of the crop N nutrition status and of the climate conditions, and so this effect is difficult to forecast in Mediterranean areas with high variation in climate (Lloveras et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

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Effects of nitrogen supply on wheat and on soil nitrate

Abad

Michelena

Lloveras

2005

Agron. Sustain. Dev.

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To cite this version:A. Abad, A. Michelena, J. Lloveras. Effects of nitrogen supply on wheat and on soil nitrate. Abstract -Field experiments were conducted at two locations during two growing seasons in the Ebro Valley (Spain), to evaluate the effects of N fertilization on yield and quality of Mediterranean-type wheat in irrigated conditions. Seven N treatments and a control were investigated. The average grain yields ranged from 2117 to 5551 kg ha -1 depending on the year and location. Grain protein ranged from 14.25 to 16.9%, and other quality parameters such as the dough strength (W) also varied with year and location, confirming the suitability of Mediterranean-type wheat and the climate for the production of good bread-making quality wheat. However, grain yields are normally low and both yields and quality can be greatly affected by the variability of this type of climate, even under irrigation. Under these conditions, grain yield increases were mainly due to an increase in the number of grains per m 2 without a reduction in the N content per spike, suggesting that N in the grain was not source-limited, possibly due to the lower grain yields and relatively high soil nitrate concentrations. In soils with lower initial soil NO -3 N contents, better grain yields could be achieved by applying a N fertilizer rate of about 100 kg N ha -1 , whereas in soils with high initial NO -3 N contents, no N or a maximum rate of 50 kg N ha -1 is needed to obtain a good grain quality, showing the possibility of producing high-quality wheat with a low amount of N fertilizer and thus increasing the sustainability of the cropping system. soil N / grain yield / crude protein / alveograph / foliar urea / SDS

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Section: Introductionmentioning

confidence: 99%

“…On the other hand, wheat of good quality needs adequate N fertilization to satisfy crop demands (Gate, 1995;Gooding and Davies, 1997;Hobbs and Sayre, 2001;Sarandón and Gianibelli, 1992). Generally the total crop N demand increases with the potential biomass and grain yield.…”

Section: Introductionmentioning

confidence: 99%

Effects of nitrogen supply on wheat and on soil nitrate

Abad

Michelena

Lloveras

2005

Agron. Sustain. Dev.

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“…Dry matter accumulation and distribution during grain‐filling of wheat are the keys to increasing yield. Reasonable N fertilizer management can improve the photosynthetic capacity of leaves after anthesis, promote the accumulation of photosynthetic matter after anthesis, and help increase grain weight (Sarandón & Gianibelli, 1992). Studies have shown that reasonable application of N fertilizer can promote the accumulation of dry matter in crop grain during filling and the transfer of dry matter to stem sheaths and leaves (Ercoli et al., 2009; Ye et al., 2013).…”

Section: Discussionmentioning

confidence: 99%

Effect of nitrogen reduction on the remobilization of post‐anthesis assimilates to grain and grain‐filling characteristics in a drip‐irrigated spring wheat system

et al. 2022

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Drip-irrigation is a cultivation mode that uses water and fertilizer efficiently and is the main cultivation technique for wheat (Triticum aestivum L.) production in the Xinjiang Uyghur Autonomous Region, China. The amount of nitrogen (N) fertilizer used in drip-irrigated wheat production is strongly connected to land productivity.However, the effect of reduced N application on the translocation of assimilates to grains and grain-filling in wheat under drip irrigation is unknown. A 2-yr field experiment (2018)(2019) was conducted in the Xinjiang Uygur Autonomous Region with two varieties of spring wheat (Xinchun 38 [XC38] and Xinchun 49 [XC49]) and five N application levels (300 [N1], 275 [N2], 250 [N3], 225 [N4], and 0[N0] kg hm −2 ). The results showed that N application significantly affected the dry matter accumulation, transport amount, transport rate, and the contribution rate of wheat (stem sheaths, leaves, and spikes). The maximum values of the above parameters of XC38 and XC49 were observed in response to N3 and N4, respectively. In addition, N affected the dry weight and grain-filling characteristic parameters. Nitrogen affected the rate of grain-filling during the three periods, with N3 and N4 being the best treatments for XC38 and XC49, respectively. The results of this study provide an understanding of the translocation of assimilates and the grain-filling characteristics of spring wheat, and the optimum N application levels were different for XC38 and XC49. Among the N treatments in this study, the optimum nitrogen levels were 250 and 225 kg hm −2 for XC38 and XC49, respectively.

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Seed Potassium Concentration Decline During Maturation Is Inversely Related to Subsequent Germination of Primrose

Zerche

Ewald

2005

Journal of Plant Nutrition

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Effect of foliar sprayings of urea during or after anthesis on dry matter and nitrogen accumulation in the grain of two wheat cultivars ofT. aestivum L.

Cited by 5 publications

References 15 publications

Effects of nitrogen supply on wheat and on soil nitrate

Effects of nitrogen supply on wheat and on soil nitrate

Effect of nitrogen reduction on the remobilization of post‐anthesis assimilates to grain and grain‐filling characteristics in a drip‐irrigated spring wheat system

Seed Potassium Concentration Decline During Maturation Is Inversely Related to Subsequent Germination of Primrose

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