The Nutritive Value of Timothy Hay as Affected by Nitrogen Fertilization

Woelfel, C. G.; Poulton, B. R.

doi:10.2527/jas1960.193695x

Cited by 10 publications

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“…Digestibility was found by Bryan et al (2) to be a good measure of nutritional value in reed canarygrass but not in tall fescue (Festuca arundinacea Schreb.). Increasing the rate of N fertilization has been shown to cause no increase in dry-matter digestibility in tall fescue or timothy (Phleum pratense L.) (4,6).…”

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Effect of N Fertilizer on Yield, Crude Protein Content, and in vitro Dry‐Matter Disappearance in Phalaris arundinacea L.¹

Niehaus¹

1971

Agronomy Journal

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‘Ioreed,’ ‘Frontier,’ and ‘Common,’ three cultivars of reed canarygrass, Phalaris arundinacea L., each grown at four rates of N, were evaluated for dry‐matter yield, percentage of crude protein, and in vitro dry‐matter disappearance (IVDMD). Nitrogen was applied at 75, 150, 300, and 600 kg/ha/yr. There was a large increase in dry‐matter yield and percentage of crude protein in response to increased N fertilizer, but IVDMD was not affected by N rate. Differences between cultivars were small for all traits. Interactions between N rates and cultivars involving dry‐matter yield existed but did not change the ranking of cultivars.

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confidence: 99%

Effect of N Fertilizer on Yield, Crude Protein Content, and in vitro Dry‐Matter Disappearance in Phalaris arundinacea L.¹

Niehaus¹

1971

Agronomy Journal

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“…It has been suggested (Hickey, 1960;Nowakowski, 1962) that the efficiency of utilization of herbage will be impaired if the concentration of crude protein is high, and Frens (1959) postulated that excessive ammonia production in the rumen from such herbage would reduce appetite and energy intake. Woelfel & Poulton (1960) observed a slight fall in the gross energy value of pasture as the level of N application increased to 224 kg./ha. The digestibility of herbage may be increased (Holmes & Lang, 1963;Washko & Marriott, 1960) or little affected (Poulton et al 1957;Woelfel & Poulton, 1960), at tho same stage of growth, by liberal N dressings.…”

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“…Woelfel & Poulton (1960) observed a slight fall in the gross energy value of pasture as the level of N application increased to 224 kg./ha. The digestibility of herbage may be increased (Holmes & Lang, 1963;Washko & Marriott, 1960) or little affected (Poulton et al 1957;Woelfel & Poulton, 1960), at tho same stage of growth, by liberal N dressings.…”

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The health and performance of the grazing animal in relation to fertilizer nitrogen usage. I. Calves

Hodgson

Spedding

1966

J. Agric. Sci.

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1. An experiment was carried out in 1961 and 1962 to test the effect of the application of high levels of fertilizer N to S 23 ryegrass swards on the health and performance of grazing calves. A uniform application of 47 kg. P and 75 kg. K/ha. was used in each year. Nitro-chalk was applied at monthly intervals from February to September, at rates equivalent to 22.4 kg. (Nl) and 112 kg. (N3) per hectare in 1961; in 1962 an intermediate rate (N2) of 67.2 kg./ha./month was also used. The total quantities of N applied per hectare in 1961 were 185 and 1042 kg. and in 1962, 192, 576 and 961 kg.2. Male calves, 2-6 months old when introduced to the experiment, grazed in rotation round a series of four paddocks on each treatment. In 1961 Friesian, Aberdeen Angus cross and Shorthorn twin calves were used; in 1962 all the calves were unrelated Friesians.

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“…Nitrogen fertilizer has been shown by many investigators to increase yields of forage (1,2,15,21). In addition, the use of nitrogen fertilizer on forage has significantly increased the crude protein content of grasses (3,5,13,15,18,21).…”

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Effect of Topdressed Nitrogen and Potassium on the Feeding Value of Orchardgrass Hay for Lactating Dairy Cows¹

Martz¹,

Brown²,

Das³

et al. 1967

Agronomy Journal

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Twenty lactating Guernsey cows were used to compare the feeding value of four orchardgrass (Dactylis glomerata) hays from established fields which received different combinations of topdressed nitrogen and potassium fertilizer. A 4 ✕ 4 Latin square changeover design was used. Grain and beet pulp consumption was held constant and hay was fed ad libitum throughout this trial. The average daily dry hay intake was 1.10, 1.06, 1.14, and 1.00 kg per 100 kg body weight for the treatments P, PK, NP, and NPK, respectively. Consumption of hay NPK was significantly less than the consumption of the other hays at the 5% level of significance. The average daily production of fat corrected milk was 11.45, 10.84, 11.14, and 11.19 kg for the hays from treatments P, PK, NP, and NPK, respectively. There were no significant differences in milk production from any of the hays. Top dressing with a complete fertilizer mixture containing 120 kg N and 186 kg K per hectare nearly tripled the hay yield and quadrupled the crude protein yield over top dressing with phosphorus alone.

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The Nutritive Value of Timothy Hay as Affected by Nitrogen Fertilization

Cited by 10 publications

References 0 publications

Effect of N Fertilizer on Yield, Crude Protein Content, and in vitro Dry‐Matter Disappearance in Phalaris arundinacea L.¹

Effect of N Fertilizer on Yield, Crude Protein Content, and in vitro Dry‐Matter Disappearance in Phalaris arundinacea L.¹

The health and performance of the grazing animal in relation to fertilizer nitrogen usage. I. Calves

Effect of Topdressed Nitrogen and Potassium on the Feeding Value of Orchardgrass Hay for Lactating Dairy Cows¹

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The Nutritive Value of Timothy Hay as Affected by Nitrogen Fertilization

Cited by 10 publications

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Effect of N Fertilizer on Yield, Crude Protein Content, and in vitro Dry‐Matter Disappearance in Phalaris arundinacea L.1

Effect of N Fertilizer on Yield, Crude Protein Content, and in vitro Dry‐Matter Disappearance in Phalaris arundinacea L.1

The health and performance of the grazing animal in relation to fertilizer nitrogen usage. I. Calves

Effect of Topdressed Nitrogen and Potassium on the Feeding Value of Orchardgrass Hay for Lactating Dairy Cows1

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Effect of N Fertilizer on Yield, Crude Protein Content, and in vitro Dry‐Matter Disappearance in Phalaris arundinacea L.¹

Effect of N Fertilizer on Yield, Crude Protein Content, and in vitro Dry‐Matter Disappearance in Phalaris arundinacea L.¹

Effect of Topdressed Nitrogen and Potassium on the Feeding Value of Orchardgrass Hay for Lactating Dairy Cows¹