The effects of rates and time of application of nitrogenous fertilizer on barley in south-east Scotland

Holmes, J. C.; Gill, Walter.; Rodger, J. A. B.

doi:10.1017/s0021859600021201

Cited by 3 publications

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“…The mean increases in crude protein content from each increment of fertilizer N above the level obtained without N for the 126 sites were 0-3, 0-7, 1-1, 1-7 and 2-1% from 17, 34, 51, 68 and 85 kg N/ha (Table 2). This shows that the first increment of fertilizer N gave the smallest increase in grain protein content as noted by others (Holmes et al 1960). Table 7 shows that this applies in particular to cropping sequence C, where the first increment of 17 kg N gave a very low increase in grain protein content but a relatively large increase in grain yield.…”

Section: Discussionsupporting

confidence: 57%

Effects of fertilizer N and number of years in tillage on the protein and non-protein content of feeding barley grain (cv. Nessa) and on N uptake and recovery

Gately¹,

McAleese

1976

J. Agric. Sci.

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The effects of six amounts (0, 17, 34, 51, 68, 85 kg N/ha) of fertilizer N, applied at sowing time, on the crude protein (N x 6-25) content of barley grain sown as the first, second and fourth or later tillage crop after grazed pasture were studied over three seasons at a total of 126 sites. In addition, non-protein N in the grain was measured at 24 sites.The overall crude protein content was 11-3% without N, increasing to 13-4% with 85 kg N/ha. The first increment of 17 kg N/ha gave the least increase in grain protein content. The year which gave the largest yields gave the lowest grain protein contents and vice versa. The mean grain protein contents without N for 1971-3 inclusive were 10-8, 11-5 and 11-8% respectively.The mean grain protein contents without N when barley was sown as the first, second and fourth or later tillage crop after pasture were 12-6, 11-5 and 10-0% respectively; the corresponding values with 85 kg N/ha were 14-4, 13-9 and 11-8%. There was a positive relationship between grain protein content and lodging, especially in barley sown as the first tillage crop after pasture, where lodging was most severe.Non-protein N was low and only accounted for 5-8 % of the total grain N content. The mean grain. N uptake with no fertilizer N applied was 82, 70 and 49 kg/ha in barley sown as the first, second and fourth or later tillage crop respectively. The apparent recovery of fertilizer N was largest in fourth or later barley. 16-2

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Section: Discussionsupporting

confidence: 57%

Effects of fertilizer N and number of years in tillage on the protein and non-protein content of feeding barley grain (cv. Nessa) and on N uptake and recovery

Gately¹,

McAleese

1976

J. Agric. Sci.

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“…F. GATELY would lower the yields, although not the responses to N, as shown by Holmes, Gill & Rodger (1960).…”

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confidence: 93%

The effects of different levels of N, P and K on the yields, nitrogen content and kernel weights of malting barley (var. Proctor)

Gately¹

1968

J. Agric. Sci.

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The effects of N, P and K applied broadcast on yields, percentage nitrogen and kernel weights of barley were studied over two seasons.The average yield increase over thirteen sites was 5-1 cwt and 8-2 cwt from applications of 35 lb and 70 lb/acre of fertilizer N respectively. A mean yield increase of 4-4 cwt/ acre was obtained from 27 lb P at four sites where the soil phosphorus test did not exceed 2 ppm P. Potassium applied at rates varying from 0 to 168 lb K/acre increased yields at one site only and decreased them at another site.The mean grain nitrogen percent without fertilizer N was 1-47 and applications of 35 and 70 lb N/acre gave increases of 0-06 and 0-19 % respectively. The overall effects of P and K on the percent nitrogen in the grain were small.Applications of 35 and 70 lb N/acre increased the mean 1000 kernel weights by 0-7 and 1-0 g respectively. When lodging occurred kernel weights were decreased. Fertilizer P and K had little effect on the kernel weights.The significance of these data are discussed in relation to previous cropping and rainfall during the growing season and during the previous winter.

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Applying fertilizers for spring barley

Widdowson

1962

Annals of Applied Biology

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The effects of rates and time of application of nitrogenous fertilizer on barley in south-east Scotland

Cited by 3 publications

References 2 publications

Effects of fertilizer N and number of years in tillage on the protein and non-protein content of feeding barley grain (cv. Nessa) and on N uptake and recovery

Effects of fertilizer N and number of years in tillage on the protein and non-protein content of feeding barley grain (cv. Nessa) and on N uptake and recovery

The effects of different levels of N, P and K on the yields, nitrogen content and kernel weights of malting barley (var. Proctor)

Applying fertilizers for spring barley

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