First‐Year Silage Corn Economically Optimized without Nitrogen Fertilization

Broccoli quality in British Columbia can vary with season and with the farm site on which it is grown. One major management difference between farms is nitrogen fertilization rate. This work was conducted to determine the effect of nitrogen fertilization (0, 125, 250, 375, 500 and 625 kg N ha−1) and growing season (three plantings in 2 consecutive years) on vitamin C content, head size and storability of broccoli (Brassica oleracea var. Italica, 'Emperor'). The climatic conditions during crop growth and development had a greater overall effect on vitamin C content, head diameter and head weight than nitrogen fertilization. Weight and vitamin C losses during storage in the first year were not affected by nitrogen fertilization rates. Moderate nitrogen application rates of 125 and 250 kg N ha−1 in all three plantings produced a head size considered optimal for marketing. Key words: Postharvest, vegetable quality, climatic conditions

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Nitrogen Fertilization and Glyphosate‐Resistant Alfalfa Termination Method Effects on First‐Year Silage Corn

Agronomy Journal ◽

10.1002/agj2.20583 ◽

2021 ◽

Author(s):

Jason D. Clark ◽

Matt A. Yost ◽

Thomas C. Griggs ◽

Grant E. Cardon ◽

Corey V. Ransom ◽

...

Keyword(s):

Nitrogen Fertilization ◽

First Year ◽

Method Effects

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Competition and yield performance in mixtures of oats and barley - nitrogen fertilization, density and proportion of the components

Agricultural and Food Science ◽

10.23986/afsci.72406 ◽

1991 ◽

Vol 63 (4) ◽

pp. 321-340 ◽

Cited By ~ 1

Author(s):

Kari Jokinen

Keyword(s):

Regression Analysis ◽

Nitrogen Fertilization ◽

Yield Components ◽

First Year ◽

Replacement Series ◽

Yield Performance ◽

Dominant Component ◽

Competitive Relationship

Competition and yield performance in mixtures of barley and oats were evaluated from addition series experiments (three experiments) in 1983 and in 1984. Three doses of nitrogen fertilization (10 kgN/ha, 40 kgN/ha and 80 kgN/ha) were applied. In the first year the components were Agneta barley and Veli oats and in 1984in addition to the previous combination also Ida barley and Veli oats were included. The competitive relationship between components was analysed by replacement series model and by regression analysis. The results showed that the dominant component according to the regression analysis was also dominant according to the indices of the replacement series model independently of density and proportion. Barley was generally more competitive than oats. The dominance of barley usually increased with increasing nitrogen fertilization, especially in the mixture of Agneta and Veli. All the yield components of the barley plants increased with the decreasing proportion of barley in the mixture. In 1983, some mixtures overyielded significantly (p

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Yield of sugarcane submitted to nitrogen fertilization and water depths by subsurface drip irrigation

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v20n9p841-846 ◽

2016 ◽

Vol 20 (9) ◽

pp. 841-846 ◽

Cited By ~ 2

Author(s):

Fernando N. Cunha ◽

Nelmício F. da Silva ◽

Antonio E. C. Sousa ◽

Marconi B. Teixeira ◽

Frederico A. L. Soares ◽

...

Keyword(s):

Nitrogen Fertilization ◽

Drip Irrigation ◽

Vegetative Growth ◽

Field Capacity ◽

Subsurface Drip Irrigation ◽

First Year ◽

N Application ◽

Second Year ◽

Subsurface Drip ◽

Water Depths

ABSTRACT Water is limiting for growth and essential for photosynthesis. Crop yield depends on the available amount of this resource and on the efficiency of its use by the plant. This study aimed to evaluate the vegetative growth and the gross yield of sugar and ethanol from sugarcane along cane-plant and ratoon cane cultivation, under different irrigation depths for water replenishment, with and without nitrogen (N) application by subsurface drip irrigation. The experimental design was randomized blocks, analyzed in a split-plot scheme, with four replicates, in which the plots were represented by the interaction: irrigation depths (0, 25, 50, 75 and 100% water replenishment of the field capacity), with and without N fertigation, and subplots were represented by 9 evaluation periods (90, 120, 150, 180, 210, 240, 270, 300 and 330 days after planting/days after the first cutting for ratoon cane). The gross yields of sugar and alcohol for water replenishments below 93 and 97%, respectively, are higher in sugarcane of first year than in sugarcane of second year. Fertigation provided greater vegetative growth of ratoon cane.

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Response of First-Year Soybeans to Row Spacing, Inoculation Treatments, and Nitrogen Fertilization

jpa ◽

10.2134/jpa1991.0589 ◽

1991 ◽

Vol 4 (4) ◽

pp. 589-593 ◽

Cited By ~ 2

Author(s):

O. B. Hesterman ◽

T. G. Isleib

Keyword(s):

Nitrogen Fertilization ◽

First Year ◽

Row Spacing

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Optimal Rates of Nitrogen Fertilization for First-Year Corn after Alfalfa

jpa ◽

10.2134/jpa1993.0344 ◽

1993 ◽

Vol 6 (3) ◽

pp. 344-350 ◽

Cited By ~ 33

Author(s):

T.F. Morris ◽

A.M. Blackmer ◽

N.M. El-Hout

Keyword(s):

Nitrogen Fertilization ◽

First Year

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Production and Bromatological Composition of Black Oat Cultivated with Vetch When Submitted to Nitrogen Fertilization in Above Sowing in the Pasture of Tifton 85

Journal of Agricultural Science ◽

10.5539/jas.v10n2p328 ◽

2018 ◽

Vol 10 (2) ◽

pp. 328

Author(s):

João Paulo Fonesi de Carvalho ◽

Magno Daniel Porfirio ◽

Claudia Anete Führ ◽

Vitor Gustavo Kuhn ◽

Tauane Santos Brito ◽

...

Keyword(s):

Nitrogen Fertilization ◽

Crude Protein ◽

Dry Matter ◽

Forage Yield ◽

Winter Period ◽

First Year ◽

Forage Production ◽

Average Value ◽

Catholic University ◽

Second Year

The objective of this research was to evaluate the forage production, the bromatological composition of black oat in consortium with vetch when submitted to nitrogen fertilization in above sowing system in the Tifton 85 pasture. The experiment was conducted at the experimental farm of the Pontifical Catholic University of Parana, Campus Toledo-PR. The experimental design used was random blocks with four treatments and five repetitions and the treatments consisted of: only oat, oat consorted with vetch, oat with nitrogen fertilization and oat consorted with vetch and nitrogen fertilization. Were evaluated the bromatological composition (CP, NDF, ADF, LIG, EE DM, MM) and the forage yield in the consortium of oat with vetch and/or nitrogen fertilization. The results obtained to the bromatological composition indicate that the application of nitrogen on the surface of the forage increased production with an average of 3.922 kg ha-1 in the second year. The nitrogen fertilization also influenced in the medium contents of crude protein (CP) with 18.56% in the first year. The increase of nitrogen in the parcels showed meaningful results for the first year (P < 0.05) in the contents of dry matter with average value of 18.95%. The introduction of black oat consorted with vetch and with a nitrogen fertilization in above sowing in the crop of tifton 85 during the winter period provides an increase in the yield kg ha-1 and when the vetch was used it happened an increase in the contents of crude protein and dry matter in the bromatological composition of the forage.

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