Nitrogen and water effects on wheat yield in a Mediterranean-type climate

Garabet, S.; Wood, M.; Ryan, John

doi:10.1016/s0378-4290(98)00075-6

Cited by 71 publications

(49 citation statements)

References 25 publications

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“…The advantage of NEH EH was apparent in ID 5 and ID 3 , but was not obvious in ID 9 , ID 7 and ID 1 . N STEH did not give higher wheat yield than N EH , but yielded less than N EH in ID 5 and ID 3 . Unlike wheat, again there was no irrigation-by-N interaction on barley grain yield.…”

Section: -04 Experimentsmentioning

confidence: 72%

“…Farming practices are increasingly being held responsible for contributing nitrate to surface and ground water. Since higher rates of N application generally lead to greater N loss [25,3], N EH is again preferable over N STEH as it is expected to cause less pollution to ground water.…”

Section: Discussionmentioning

confidence: 99%

“…Supplemental irrigation is defined as a technique used where a crop can be grown by natural rainfall alone but providing additional water by irrigation stabilizes and improves yield [1][2]. Supplemental irrigation significantly increased wheat yields in West Asia and North Africa, like in Syria [3], Lebanon [4], and Turkey [5], and near-maximum yields were obtained by 2/3 [6] or 1/3 [5] full supplemental irrigation. However, the excessive use of groundwater for supplemental irrigation seriously threatens the sustainability of groundwater availability, thus the need for improving water-use efficiency and sustainable use of water resources is clearly urgent.…”

Section: Introductionmentioning

confidence: 99%

“…However, increased N fertilizer rates often raise wheat yield up to a point, beyond which there is no additional response but greater N loss. Thus, an understanding of the interactive effects of N and water on yield is important to produce consistent and economically attractive yield increases [3].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Deficit Irrigation and Split N Fertilization on Wheat and Barley Yields in a Semi-Arid Mediterranean Area

Abourached¹,

Yau²,

Nimah³

et al. 2008

TOASJ

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This study investigated the interactive effects of different rates of deficit irrigation and timings of N application on wheat and barley yields since there was no report on this important subject. Field experiments in strip-plot designs using sprinkler line sources were conducted for two years at a semi-arid Mediterranean site. The experiments consisted of 4 and 7 irrigation levels with 3 and 6 N treatments in 4 replicates in 2002-03 and 2003-04, respectively. In both years, there was a significant irrigation-by-N interaction on wheat grain yield but not on barley. In 2003-04, N application at stem elongation and heading produced the highest wheat grain yield at the four higher irrigation levels, but highest yield was obtained when N was applied at sowing and tillering at the two lowest irrigation levels. Nitrogen application at stem elongation and heading also gave the highest grain N content. The existence of interaction due to irrigation-by-timing of N application in wheat but not in barley could be because wheat has a higher N uptake after anthesis but lower nitrogen remobilization efficiency than barley. Results suggested that wheat farmers better apply N at stem elongation and heading for a higher yield and grain N content unless they are not irrigating or irrigate with minimum amount of water.

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Section: -04 Experimentsmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Deficit Irrigation and Split N Fertilization on Wheat and Barley Yields in a Semi-Arid Mediterranean Area

Abourached¹,

Yau²,

Nimah³

et al. 2008

TOASJ

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“…If moisture sensitive periods could be identified for wheat crop under field conditions, it would have important implications for irrigation practices. Irrigation applied at sensitive stage would be a valuable management practice for improving yield (Jana et al, 1995;Garabet et al, 1998). Nitrogen occupies a conspicuous place in plant metabolism.…”

Section: Introductionmentioning

confidence: 99%

Application of Ceres-Wheat Model to Simulate Growth, Development and Radiation Use Efficiency of Wheat Crop

Hussain¹,

Wajid²,

Ali³

et al. 2015

JGIASS

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CERES-WHEAT Model is an important technique to assess growth, development and radiation use efficiency skills of wheat crop. Under changing climatic conditions world over, one of the suitable approach is needed to enhance the growth and reproductive skills of field crops. For the purpose, a field trial was conducted at Adoptive Research Farm Sargodha. The study comprised of four fertilizer levels viz. control (Recommended dose), 84, 114, 144 kg ha -1 and three irrigation levels viz. irrigation at crown root + jointing + milking, at crown root + booting + grain filling, and at jointing + booting + grain filling. Irrigation levels were kept in main plots and fertilizer levels were randomized in subplots. Data revealed that Crop Growth Rate (CGR), Leaf Area Index (LAI), Leaf Area Duration (LAD) and Net Assimilation Rate (NAR) were significantly increased by increasing the fertilizer levels as well as irrigation frequency. Maximum grain yield 5528 kg ha -1 was obtained while irrigating the crop at jointing + booting + grain filling stages using 144 kg ha -1 of nitrogen. Interestingly, increase in fertilizer rate increased the yield and yield components and plant growth and radiation use efficiency. In conclusion, three irrigations at jointing + booting and grain filling stage and fertilizer levels as 144 kg ha -1 is the best combination for having maximum output in terms of yield of the cultivar Bakhar-2000.

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Efficiency parameters of nitrogen in hog and cattle manure in the second year following application

Geyi¹,

Schoenau

Charles³

et al. 2003

Z. Pflanzenernähr. Bodenk.

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SummaryThe efficiency of nitrogen (N) derived from different manures in the years following application must be determined to optimize use of N and reduce impact on the environment. Five N efficiency parameters that were originally developed for commercial inorganic N fertilizers were selected to measure the manure N efficiency in the second year following application of liquid hog and solid cattle manure in semiarid east-central Saskatchewan, Canada. The manures were applied at two sites (Dixon and Burr) at four rates covering a range from zero to 912 kg N ha ±1 in 1997. A canola (Brassica napus L.) crop was grown in 1997 followed by a spring wheat (Triticum aestivum L.) in 1998 without fertilization. Tested by the wheat, N utilization efficiency (NUE) was similar between the two manures at either site, but it was higher at Dixon site, where the soil properties were better, than at the Burr site (P < 0.07) with cattle manure. Nitrogen physiological efficiency (NPE) was not affected by either manure source or soil. At the Burr site, N agronomic efficiency (NAE) and N recovery rate (NRR) were all higher with the hog than with the cattle manure (P < 0.08 and P < 0.07, respectively), but N harvest index (NHI) was lower with the hog than with the cattle manure (P < 0.04). The similar trends of the NAE, NRR, and NHI between the hog and cattle manure were also found at the Dixon site. However, the differences in NRR between the hog and cattle manure in the second year was rather small in contrast to the large differences in the year of application. Despite that the wheat crop utilized residual hog and cattle manure N equally efficient in producing grain yield, a higher grain N concentration and a higher NHI with the cattle than with the hog manure revealed different N supply dynamics between the two. Possibly due to the low proportion of ammonium (NH 3 )-N in the total N and the high C : N ratio in the cattle manure, mineralization of cattle manure N provided more available N in the later stage of wheat growth than did the hog manure. The N efficiency parameters were useful tools in understanding the impact of residual manure N on wheat production on the Canadian prairies.Key words: liquid hog manure / solid cattle manure / nitrogen utilization efficiency / nitrogen physiological efficiency / nitrogen agronomic efficiency / nitrogen recovery rate / nitrogen harvest index PNSS P113/5B

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Nitrogen and water effects on wheat yield in a Mediterranean-type climate

Cited by 71 publications

References 25 publications

Deficit Irrigation and Split N Fertilization on Wheat and Barley Yields in a Semi-Arid Mediterranean Area

Deficit Irrigation and Split N Fertilization on Wheat and Barley Yields in a Semi-Arid Mediterranean Area

Application of Ceres-Wheat Model to Simulate Growth, Development and Radiation Use Efficiency of Wheat Crop

Efficiency parameters of nitrogen in hog and cattle manure in the second year following application

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