PERFORMANCE OF SPRINKLER IRRIGATED WHEAT – PART II

Boron is one of the most limiting micronutrients in grains production system in Brazil. In this way, the objective was to evaluate the effect of forms of application and doses of boron in irrigated wheat grain yield evaluating the economic terms in Cerrado region. The experiment was conducted in no-tillage system in an Oxisol with clay texture in Selvíria, MS, Brazil. The experimental design was a randomized block design with four replicates, arranged in a 4 × 3 factorial scheme: four doses of boron (0, 1, 2 and 4 kg ha-1) with boric acid source (B = 17%); and three apllication forms: a) in desiccation of the predecessor straw, together with herbicide; b) at the time of sowing, in soil along with the formulated fertilization seeding and c) via leaf tissue with the application of post emergent herbicide. The application of 2 kg ha-1 provides greater grain yields, but the highest economic return was obtained at the dose of 1 kg ha-1, with application in soil, ensuring profitability from production of irrigated wheat in the Cerrado.

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Time of Salt Stress Affects Growth and Yield Components of Irrigated Wheat

Agronomy Journal ◽

10.2134/agronj1994.00021962008600010019x ◽

1994 ◽

Vol 86 (1) ◽

pp. 100-107 ◽

Cited By ~ 41

Author(s):

Leland E. Francois ◽

Catherine M. Grieve ◽

Eugene V. Maas ◽

Scott M. Lesch

Keyword(s):

Salt Stress ◽

Yield Components ◽

Growth And Yield ◽

Irrigated Wheat

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Quantifying the effects of advection on canopy energy budgets and water use efficiency in an irrigated wheat field in the North China Plain

Agricultural Water Management ◽

10.1016/j.agwat.2006.12.003 ◽

2007 ◽

Vol 89 (1-2) ◽

pp. 116-122 ◽

Cited By ~ 28

Author(s):

Longhui Li ◽

Qiang Yu

Keyword(s):

Water Use Efficiency ◽

Water Use ◽

North China Plain ◽

North China ◽

Energy Budgets ◽

Wheat Field ◽

The North ◽

The North China Plain ◽

Use Efficiency ◽

Irrigated Wheat

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FACTORS UNDERLYING GRAIN YIELD SPATIAL VARIABILITY IN THREE IRRIGATED WHEAT FIELDS

Transactions of the ASAE ◽

10.13031/2013.13284 ◽

1999 ◽

Vol 42 (5) ◽

pp. 1187-1202 ◽

Cited By ~ 22

Author(s):

R. E. Plant ◽

A. Mermer ◽

G. S. Pettygrove ◽

M. P. Vayssieres ◽

J. A. Young ◽

...

Keyword(s):

Spatial Variability ◽

Grain Yield ◽

Irrigated Wheat

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The use of remote sensing for estimating ET of irrigated wheat and cotton in Northwest Mexico

Irrigation and Drainage Systems ◽

10.1007/s10795-005-5192-2 ◽

2005 ◽

Vol 19 (3-4) ◽

pp. 301-320 ◽

Cited By ~ 29

Author(s):

Jaime Garatuza-Payan ◽

Christopher J. Watts

Keyword(s):

Remote Sensing ◽

Northwest Mexico ◽

Irrigated Wheat

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The effect of time of sowing on the grain yield of irrigated wheat in the Namoi Valley, New South Wales

Australian Journal of Agricultural Research ◽

10.1071/ar9830229 ◽

1983 ◽

Vol 34 (3) ◽

pp. 229 ◽

Cited By ~ 39

Author(s):

GK McDonald ◽

BG Sutton ◽

FW Ellison

Keyword(s):

Grain Filling ◽

Early Spring ◽

Optimum Time ◽

South Wales ◽

Sowing Dates ◽

Eastern Australia ◽

Crop Development ◽

Spring Temperatures ◽

Irrigated Wheat ◽

Spring Frosts

The effect of time of sowing on the yield of 15 wheat cultivars grown under irrigation was examined at Narrabri, N.S.W. Sowing dates, which ranged from mid-April to mid-August, encompassed the period of sowing normally found with commercial crops. The length of the pre-anthesis period was affected by both temperature and photoperiod. There was evidence of a vernalization requirement for some of the winter and midseason cultivars, but, overall, photoperiod was the more important environmental factor determining pre-anthesis development. Each day's delay in sowing caused a delay of between 0.48 and 0.75 days in anthesis; the delays observed for spring wheats were generally greater than those reported for dryland wheat in eastern Australia. Winter cultivars generally did not show an optimum sowing or anthesis date. For spring cultivars, the optimum time of sowing was early June (range of about 3 weeks), while the optimum anthesis date was the last week of September (range of 1 week). Grain yields of spring cultivars were reduced by 6 and 16% per week's delay in sowing and anthesis respectively. Despite a non-limiting water supply, yields at late plantings were low, which was largely the result of hastened crop development and high temperatures during grain-filling. The environmental factors which determined the optimum sowing and anthesis dates were the incidence of early spring frosts and high spring temperatures. If frosts were not a factor at Narrabri, the optimum time of flowering would be 6-8 weeks earlier than the present optimum.

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