Quantitative difference method for estimation of fertilizer nitrogen balance and uptake by zea mays on an orthic oxisol of North Central Nigeria

SUMMARYYields of maize were determined in six years, on two soils, at up to four nitrogen levels following early and late planting. Without fertilizer nitrogen, high rainfall at the beginning of the growing season reduced yield on one soil but not on the other, while high rainfall at late silking and high total rainfall in the growing season reduced yields on both soils. As the level of fertilizer nitrogen increased, the negative effects of rainfall on yield tended to disappear. A three week delay in planting sometimes increased and sometimes decreased yield. The probable reasons for the observed effects of rainfall on yield are discussed.

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Calibrating the leaf colour chart for need based fertilizer nitrogen management in different maize (Zea mays L.) genotypes

Field Crops Research ◽

10.1016/j.fcr.2010.10.014 ◽

2011 ◽

Vol 120 (2) ◽

pp. 276-282 ◽

Cited By ~ 28

Author(s):

Varinderpal-Singh ◽

Yadvinder-Singh ◽

Bijay-Singh ◽

H.S. Thind ◽

Ajay Kumar ◽

...

Keyword(s):

Zea Mays ◽

Zea Mays L ◽

Nitrogen Management ◽

Fertilizer Nitrogen ◽

Leaf Colour ◽

Colour Chart ◽

Fertilizer Nitrogen Management

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Intake, digestibility in vivo and nitrogen balance in sheep of pea-wheat bi-crop silages harvested at three stages of maturity

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200002350 ◽

1999 ◽

Vol 1999 ◽

pp. 80-80 ◽

Cited By ~ 1

Author(s):

A.T. Adesogan ◽

M.B. Salawu ◽

M.D. Fraser ◽

S.T. Evans ◽

R. Fychan ◽

...

Keyword(s):

Nitrogen Fixation ◽

Nitrogen Balance ◽

Low Cost ◽

N Balance ◽

Animal Performance ◽

Fertilizer Nitrogen ◽

Three Stages ◽

The Cost

The production and utilization of complementary cereal/legume bi-crops as ruminant feeds is beneficial for several reasons. The nitrogen fixation by the legume reduces the amount of fertilizer nitrogen required by the cereal. The cereal in turn supports the legume, thereby preventing the lodging that typifies pure stands of mature forage peas. When bi-crops are fed, the legume and cereal components respectively provide relatively low cost protein and energy, which may be synchronously supplied to the animal. In Denmark, pea-barley bi-crops are reported to reduce the cost of feeding without reducing intake and animal performance (Kristensen, 1992). However, little is known about the intake potential and level of animal performance sustainable from such bi-crops when produced and fed under UK conditions. Therefore this study determined the intake, in vivo digestibility and nitrogen (N) balance in sheep of spring sown, peawheat bi-crop silages harvested at three stages of maturity.

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Distiller’s dried grains with solubles (Zea mays L.) in feeding sheep on nitrogen balance

Semina Ciências Agrárias ◽

10.5433/1679-0359.2017v38n6p3807 ◽

2017 ◽

Vol 38 (6) ◽

pp. 3807

Author(s):

Luiz Juliano Valério Geron ◽

Jocilaine Garcia ◽

Sílvia Cristina de Aguiar ◽

Kallynka Samara Martins Coelho ◽

Ilda De Souza Santos ◽

...

Keyword(s):

Zea Mays ◽

Body Weight ◽

Regression Analysis ◽

Experimental Design ◽

Nitrogen Balance ◽

Zea Mays L ◽

Latin Square ◽

Experimental Period ◽

Average Body ◽

Average Body Weight

The objective of this study was to evaluate the effects of diets supplemented with 0.0, 8.0, 16.0, and 24.0% distiller’s dried grain solubles (DDGS) on nitrogen (N) intake, fecal and urinary N excretion, and N absorption and retention (N balance, NB) by feeding sheep. Four sheep of unidentified race were used, with an average body weight of 23.5 ± 1.5 kg, and housed in metabolism cages. We used a 4 × 4 Latin square design for the experimental design, and each experimental period lasted for 20 days. Data on N intake (NI), fecal N, urinary N, absorbed N, and NB were expressed in g day-1; percentage of NI and grams per kilogram of metabolic weight g (kg0.75)-1 were subjected to analysis of variance (ANOVA) and regression analysis at 5% probability. Inclusion of the different concentrations of DDGS in sheep diets had no effect on NI (mean of 15.11 g animal-1 day-1), nor on fecal and urinary N excretion (mean of 5.16 and 0.16 g animal-1 day-1, respectively). Moreover, DDGS supplementation did not alter NB or N absorption (mean of 9.79 and 9.95 g animal-1 day-1, respectively). Thus, it can be concluded that inclusion of up to 24% of DDGS in feed does not affect NI, fecal and urinary N excretion, and NB in sheep.

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A lysimeter study of the fate of fertilizer nitrogen in spring barley crops grown on a shallow soil overlying Chalk: denitrification losses and the nitrogen balance

Journal of Soil Science ◽

10.1111/j.1365-2389.1984.tb00273.x ◽

1984 ◽

Vol 35 (2) ◽

pp. 183-190 ◽

Cited By ~ 15

Author(s):

R. J. DOWDELL ◽

C. P. WEBSTER

Keyword(s):

Nitrogen Balance ◽

Spring Barley ◽

Fertilizer Nitrogen ◽

Shallow Soil

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Nitrogen, sulphur and carbon uptake from some nitrogenous fertilizers using 15N, 35S and 13C as tracers

The Journal of Agricultural Science ◽

10.1017/s0021859600034316 ◽

1957 ◽

Vol 49 (1) ◽

pp. 56-59 ◽

Cited By ~ 7

Author(s):

A. J. Low ◽

F. J. Piper

Keyword(s):

Ammonium Sulphate ◽

Difference Method ◽

Calcium Nitrate ◽

Italian Ryegrass ◽

Carbon Uptake ◽

Fertilizer Nitrogen ◽

The Difference ◽

Pot Culture

1. Pot culture experiments are described comparing the recovery of nitrogen, and sulphur by the difference and ‘labelled atom’ methods and the recovery of carbon by the latter method. Italian ryegrass was used as the test crop with ammonium sulphate, calcium nitrate and urea as the fertilizers.2. The recovery of fertilizer nitrogen was less using the ‘labelled atom’ technique than the conventional difference method.3. The recovery of sulphur from ammonium sulphate ‘labelled’ with 35S was measured. It was considerably less than the nitrogen, but not inconsiderable especially as a basal dressing of ‘unlabelled’ K2SO4 was applied.4. Using urea ‘labelled’ with 13C there was no evidence that any of the carbon was in the ryegrass four weeks after application.

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Hybrid and population density affect yield and quality of silage maize in central Alberta

Canadian Journal of Plant Science ◽

10.4141/cjps06024 ◽

2007 ◽

Vol 87 (4) ◽

pp. 867-871 ◽

Cited By ~ 8

Author(s):

D. Stanton ◽

A. W. Grombacher ◽

R. Pinnisch ◽

H. Mason ◽

D. Spaner

Keyword(s):

Zea Mays ◽

Zea Mays L ◽

North Central ◽

Heat Units ◽

Silage Maize ◽

Yield And Quality ◽

Northern Latitudes ◽

Early Maturing ◽

Plant Densities

Four maize (Zea mays L.) hybrids planted at varying plant densities were evaluated for their yield, maturity, and quality across environments in north central Alberta. Given the balance of yield and quality, very early maturing hybrids [2000 corn heat units (CHU)] planted at ~100 000 plants ha-1 are recommended for north central Alberta. Key words: Corn; Zea mays L.; northern latitudes; corn heat units

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