Influence of applied nitrogen on potato part I: Yield, quality, and Nitrogen uptake

1995 ◽  
Vol 72 (1) ◽  
pp. 51-63 ◽  
Author(s):  
B. C. Joern ◽  
M. L. Vitosh
Keyword(s):  
Nitrogen Uptake ◽  
Yield Quality ◽  
Applied Nitrogen

Immediate Effects of Time and Method of Alfalfa Termination on Soil Mineral Nitrogen, Moisture, Weed Control, and Seed Yield, Quality, and Nitrogen Uptake

2007 ◽  
Vol 30 (7) ◽  
pp. 1059-1081 ◽  
Author(s):  
S. S. Malhi ◽  
A. M. Johnston ◽  
H. Loeppky ◽  
C. L. Vera ◽  
H. J. Beckie ◽  
...  
Keyword(s):  
Weed Control ◽  
Seed Yield ◽  
Nitrogen Uptake ◽  
Mineral Nitrogen ◽  
Soil Mineral ◽  
Soil Mineral Nitrogen ◽  
Yield Quality

Furrow irrigation of grain sorghum in a tropical environment. II. Influence of period of inundation on the utilization of soil and fertilizer nitrogen by the crop

1985 ◽  
Vol 36 (1) ◽  
pp. 83 ◽  
Author(s):  
GC Wright
Keyword(s):  
Nitrogen Uptake ◽  
Plant Uptake ◽  
Surface Soil ◽  
Grain Sorghum ◽  
Furrow Irrigation ◽  
Tropical Environment ◽  
Soil Layers ◽  
Fertilizer Nitrogen ◽  
Crop Maturity ◽  
Applied Nitrogen

Grain sorghum was grown in plots that had been fertilized, before sowing, with either 0, 80 or 170 kg Ha-1 nitrogen (N), and furrow irrigated for periods of 0 (sprinkler irrigated control), 3, 6, 12 or 24 h. The apparent uptake of fertilizer nitrogen declined from 63 to 7% as the period of inundation increased from 0 to 24 h. Large quantities of nitrate (up to 82 kg N ha-1) remained in the surface soil layers of all furrow irrigated ridges at crop maturity, in contrast to the sprinkler irrigated ridges (up to 4 kg N ha-1). At all inundation periods a constant proportion of the applied nitrogen was moved to the ridge tops, where it was unavailable for plant uptake. The differences in the recovery of applied nitrogen between the crops given 0 (sprinkler) and 3 h irrigation was mainly attributed to the surface accumulation of nitrate in the latter. Further reduction of nitrogen uptake with longer periods of inundation are attributed to differential rates of loss of nitrogen from the soil by denitrification and leaching.

Nitrogen efficiency of wheat cultivars in a Mediterranean environment

1999 ◽  
Vol 39 (8) ◽  
pp. 957 ◽  
Author(s):  
W. K. Anderson ◽  
F. C. Hoyle
Keyword(s):  
Grain Yield ◽  
Soil Nitrogen ◽  
Nitrogen Uptake ◽  
Nitrogen Efficiency ◽  
Grain Protein ◽  
High Ability ◽  
Wheat Cultivars ◽  
Nitrogen Fertiliser ◽  
Yield Increase ◽  
Applied Nitrogen

Summary. Experiments were conducted at 3 sites in Western Australia in 1993 using 33 wheat cultivars and crossbreds. Two rates of applied nitrogen fertiliser (0 and 40 kg/ha of nitrogen) were used to screen the lines for efficiency of nitrogen uptake, grain yield and grain protein production per unit of nitrogen applied, and nitrogen translocation to the grain. This information can be useful in determining nitrogen fertiliser strategies for wheat cultivars in the field. Nitrogen uptake in the plant tops was measured during the season and in the grain and straw at maturity. Grain yield, grain protein and nitrogen efficiency parameters were not markedly different between grain quality grades which are largely based on grain hardness. Yield efficient lines (high net yield increase per unit of applied nitrogen) were characterised by greater net uptake and net utilisation efficiencies but had similar yields and grain protein percentages as yield inefficient lines. Protein efficient lines (high net grain protein increase per unit of applied nitrogen) also had greater uptake efficiencies but lower utilisation efficiencies than protein inefficient lines. No lines were both yield and protein efficient suggesting that lines either use fertiliser nitrogen preferentially in yield production or in production of protein. The results indicate that in nitrogen-responsive situations it will be more profitable to use yield-efficient lines. Further investigation is needed to examine the suggestion that where soil nitrogen levels are higher (and yield responses to nitrogen are less) a greater economic return may come from using protein efficient lines. Some wheat lines had a high ability to recover fertiliser nitrogen applied to the crop. Others had a high ability to take up soil nitrogen. It is postulated that these differences may be due to differences in root systems. Some mid- and long-season lines that had high concentrations of nitrogen in the tops at anthesis metabolised that nitrogen poorly into grain yield or protein. This suggests that nitrogen efficiency may be partly related to maturity relative to length of growing season.

Russet Potato Yield, Quality, and Nitrogen Uptake with Enhanced Efficiency Fertilizers

2019 ◽  
Vol 111 (1) ◽  
pp. 200-209 ◽  
Author(s):  
Upasana Ghosh ◽  
Harlene Hatterman-Valenti ◽  
Amitava Chatterjee
Keyword(s):  
Nitrogen Uptake ◽  
Potato Yield ◽  
Yield Quality

Relationships Between Yield, Quality and Nitrogen Uptake and Utilization of Organically Grown Rice Varieties

Pedosphere ◽  
2016 ◽  
Vol 26 (1) ◽  
pp. 85-97 ◽  
Author(s):  
Lifen HUANG ◽  
Jun YU ◽  
Jie YANG ◽  
Rong ZHANG ◽  
Yanchao BAI ◽  
...  
Keyword(s):  
Nitrogen Uptake ◽  
Rice Varieties ◽  
Yield Quality ◽  
Organically Grown

The effect of rhizoctonia root disease and applied nitrogen on growth, nitrogen uptake and nutrient concentrations in spring wheat

1994 ◽  
Vol 163 (1) ◽  
pp. 111-120 ◽  
Author(s):  
P. C. Wall ◽  
S. M. Neate ◽  
R. D. Graham ◽  
D. J. Reuter ◽  
A. D. Rovira
Keyword(s):  
Spring Wheat ◽  
Nitrogen Uptake ◽  
Root Disease ◽  
Nutrient Concentrations ◽  
Applied Nitrogen

Corn yield and nitrogen uptake as influenced by tillage and applied nitrogen

1994 ◽  
Vol 17 (6) ◽  
pp. 911-931 ◽  
Author(s):  
G. Menelik ◽  
R.B. Reneau ◽  
D.C. Martens
Keyword(s):  
Nitrogen Uptake ◽  
Corn Yield ◽  
Applied Nitrogen
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