Foliar fertilization of corn during the grain-filling period

Kargbo, Charles Sorie

doi:10.31274/rtd-180813-1329

Cited by 4 publications

(9 citation statements)

References 74 publications

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“…Little work with balanced N, P, K, S foliar fertilizers applied to com during the grain filling period has been reported. In two years of experiments, Kargbo (1978) generally found no response in grain yield to foliar fertilizer applied to corn. His only significant positive response to foliar fertilizer occurred with a two-eared hybrid in an experiment com paring the response of eight different hybrids.…”

Section: Foliar Application Of Fertilizermentioning

confidence: 96%

“…The background literature on the mechanisms of, and experiments with, foliar fertilizer have been more thoroughly reviewed by Benson (1971), Kargbo (1978) working with corn, and by Garcia (1976) working with soybeans.…”

Section: Foliar Application Of Fertilizermentioning

confidence: 99%

“…When the rate of N application was increased to 60 Kg/ha, the nitrogen content of the grain increased. Kargbo (1978) gen erally found that the percentage of N and P in corn grain was increased by foliar nutrient application but that the K content of the grain was not increased. He found, however, that the N increase in the grain was greater when the sprays contained N and S, rather than when S was not present in the spray.…”

Section: Effect On Nutrients In the Grainmentioning

confidence: 99%

“…Schumacher and Welch (1970) found that a concentration of more than 30 g/l of N, and 21 g/l of N in corn and soybean sprays, respectively, caused severe foliar damage. Generally, urea has been faulted for foliar injury (Benson, 1971;Chesnin and Shafer, 1953;Foy et al, 1953;Kargbo, 1978;Shubeck and Caldwell, 1949). However, Wittwer (1964) claims there is less risk of scorching leaves when urea is used than when other nitrogen compounds are used in the foliar spray.…”

Section: The Problem Of Leaf Burnmentioning

confidence: 99%

“…Mean yield is 195 grams per plant for both foliar fertilizer treatments. Kargbo (1978) (Kargbo, 1978;Snyder, 1978). A second possibility is that foliar injury (leaf burn) which resulted from foliar fertilizer application canceled out any beneficial effects of foliar fertilizer.…”

Section: Effect Of Foliar Fertilizer On Grain Yield and Yield Componentsmentioning

confidence: 99%

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Corn yield response to moisture stress and foliar fertilizer during grain fill

Harder

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The weather shelter plot The weather shelter plot during construction, showing size of potometers, and drainage sand Diagram of a potometer with neutron probe access tube Soil-moisture patterns in 1976, Experiment 1. Curves are based on means of neutron probe measurements Soil-moisture patterns in 1976, Experiment 2. Curves are based on means of neutron probe measurements Soil-moisture patterns in 1977. Curves are based on means of neutron probe measurements Grain yield response to moisture stress, 1976 Experi ment 1 Yield component response to moisture stress, 1976 Experiment 1 Grain yield and yield component response to moisture stress, 1976 Experiment 2 Yield component response to moisture stress. Compari son between ears in Variety 2, 1976 Experiment 2 Grain yield and seed number response to foliar fertil izer and moisture stress. Variety 1, 1976 Experiment 2 Percent nitrogen in the grain as influenced by mois ture stress, 1976 Experiment 2 Percent phosphorus and percent potassium in the grain as influenced by moisture stress, 1976 Experiment 2 Moisture-stress periods shown in relation to silking and foliar-fertilizer application dates and to open pan evaporation in 1977 Grain yield response to moisture stress, varieties combined

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Section: Foliar Application Of Fertilizermentioning

confidence: 96%

Section: Foliar Application Of Fertilizermentioning

confidence: 99%

Section: Effect On Nutrients In the Grainmentioning

confidence: 99%

Section: The Problem Of Leaf Burnmentioning

confidence: 99%

Section: Effect Of Foliar Fertilizer On Grain Yield and Yield Componentsmentioning

confidence: 99%

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Corn yield response to moisture stress and foliar fertilizer during grain fill

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Corn Grain Yield and Nutrient Response to Foliar Fertilizer Applied during Grain Fill¹

Harder¹,

Carlson²,

Shaw

1982

Agronomy Journal

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Recently there has been renewed interest in foliar fertilization of field crops, but little work with foliar application of nutrients on corn (Zea mays L.) during the grain filling period has been reported. This study was conducted to observe the effect of foliar fertilizer on corn grain yield, yield components, and nutrient content in the grain at harvest, while plants were subjected to moisture stress imposed after silking in one, two, or three successive stress periods. Experiments were conducted in the movable rain shelter facility at Ames, Ia., in 1976 and 1977. In this facility corn plants were grown in containers containing 100 liters of a Nicollet loam soil (an Aquic Hapludoll, fine‐loamy mixed mesic). Foliar fertilizer was applied three times in the post‐silking period with a pressurized hand sprayer. In 1976, foliar fertilizer application commenced 4 weeks after silking, and no significant effect of foliar fertilizer on yield, or yield components was measured. In 1977, foliar‐fertilizer application commenced as early as 2 weeks after silking, and a significant, 6.4% yield reduction occurred in foliar‐fertilizer treatments. This decrease occurred in both hybrids used and in all moisture‐stress treatments. There was no evidence for an interaction between post‐silking moisture stress and foliar‐fertilizer application. In 1977, the effect of foliar fertilizer was to reduce mass/kernel in one hybrid, while in the other, neither mean mass/kernal nor kernels/plant were significantly reduced, but total grain yield was reduced. This difference was related to the number of days after silking when foliar fertilizer was first applied. Foliar fertilizer seemingly produced a stress on these plants, and the deleterious effect of this stress was expressed by the yield component being primarily determined at the time the stress occurred. Foliar fertilizer applications resulted in a significant increase in the percent N (10%) and in the percent P (4.7%) in the grain at harvest. There was, also, an increase in N yield (5.1%) in the grain despite a grain yield decrease in one hybrid.

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Corn yield response to moisture stress and foliar fertilizer during grain fill

Harder

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Foliar fertilization of corn during the grain-filling period

Cited by 4 publications

References 74 publications

Corn yield response to moisture stress and foliar fertilizer during grain fill

Corn yield response to moisture stress and foliar fertilizer during grain fill

Corn Grain Yield and Nutrient Response to Foliar Fertilizer Applied during Grain Fill¹

Corn yield response to moisture stress and foliar fertilizer during grain fill

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Foliar fertilization of corn during the grain-filling period

Cited by 4 publications

References 74 publications

Corn yield response to moisture stress and foliar fertilizer during grain fill

Corn yield response to moisture stress and foliar fertilizer during grain fill

Corn Grain Yield and Nutrient Response to Foliar Fertilizer Applied during Grain Fill1

Corn yield response to moisture stress and foliar fertilizer during grain fill

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Corn Grain Yield and Nutrient Response to Foliar Fertilizer Applied during Grain Fill¹