The effect of time of application of phosphate and potash on sugar beet

Adams, S. N.

doi:10.1017/s0021859600023911

Cited by 16 publications

(19 citation statements)

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“…Planning and supervision of the experiments The early experiments, co-ordinated by Crowther, was similar to that described by Boyd et al (1970), were reported by Boyd, Garner & Haines (1957) harvesting procedure was described by Adams and the later experiments, summarized in this (1962) and beet analyses by Tinker (1965). Except paper, were reported by Adams (1961aAdams ( , b, 1962, series I which compared autumn and spring Tinker (1965Tinker ( , 1970, Draycott (1969Draycott ( , 1971 and fertilizer dressings, all results are from spring Draycott & Durrant (1969). Our object in bringing dressings.…”

Section: Introduction Experimentsmentioning

confidence: 88%

The response of sugar beet to potassium and sodium fertilizers

1974

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The results of 216 field experiments with sugar beet , testing K and Na fertilizers, were re-examined. There were only small increases in yield with K or Na on peat or peaty mineral soils but on mineral soils, 100 kg K/ha without Na increased sugar yield by about 0-4 t/ha and 100 kg Na/ha without K increased yield by 0-6 t/ha. Although the average response per kg of nutrient was approximately in inverse proportion to their atomic weights, K and Na were only partially interchangeable; their relative effects differed from field to field and year to year.K seemed most effective in years with more than 80 mm rainfall in March-April but responses were halved when rainfall was 50 mm or less. Sowing date and the interval between giving fertilizer and sowing also influenced response to K; with latesown crops, K fertilizer given within two weeks of sowing was usually ineffective. Response to Na differed much less with season so Na was on average more effective than K, especially in dry springs. It seems, therefore, that instances of near-perfect substitution between K and Na fertilizers result from chance combinations of weather and crop husbandry.Since in some experiments yields from a combined dressing exceeded those from either nutrient alone, and as the weather is largely unpredictable, both K and Na fertilizers should be given on all mineral soils, except those very rich in K, to be certain of avoiding yield loss. Texture and exchangeable soil K and Na also affected both the amount and rate of response, but did not much influence optimal fertilizer dressings and so are not very useful for making differential fertilizer recommendations.

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Section: Introduction Experimentsmentioning

confidence: 88%

The response of sugar beet to potassium and sodium fertilizers

1974

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“…N per acre was significantly associated with a smaller plant population (r -+ 0-71) but the effects were not significant in other years. Factors which affect plant population presumably operate before singling time and there is some British (Adams, 19616) and much German (Fischnich, Grimm & Thielebein, 1959) evidence that nitrogen depresses seedling emergence. Warren & Johnston (1960) have also shown that broadcast dressings of nitrogen and potash fertilizers check germination and retard growth of sugar beet seedlings.…”

Section: Responses Without Farmyard Manurementioning

confidence: 99%

The response of sugar beet to fertilizer and the effect of farmyard manure

Adams¹

1962

J. Agric. Sci.

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1. Forty-nine 33 factorial experiments in 1957–60 tested the response of sugar beet to 0·6,1·2, 1·8 cwt. N, 0·0,0·5,1·0 cwt. P2O5 and 0·8 1·6 2·4 cwt. K2O per acre. On forty-one of the sites, the experiment was repeated in the presence of 12 tons FYM per acre. There were also six trials in which the rates of mineral fertilizer had been altered to suit local conditions.2. Optimum dressings for sugar yield without FYM were 1·0 cwt. N, 0·5 cwt. P2O6 and 1·6 cwt. K2O per acre. This closely agrees with results of experiments made in 1934–39. Exceeding the optimum nitrogen dressing decreased sugar yield although the yield of tops was increased. The main value of dung for beet was in the N, P and K it provided. With FYM, optimum dressings were only 0·6 cwt. N, 0·0 cwt. P2O5 and 0·8 cwt. K2O per acre.3. Response to nitrogen differed greatly from field to field and the best guide to the nitrogen requirement of a field was the previous cropping. Beet which followed two or more cereal crops needed more nitrogen on average than beet which did not. Response to phosphate and potash did not differ much in different experiments and the national optimum would have been satisfactory for nearly all fields. The only use of soil analysis was to identify the very few fields which needed more than the average dressing of phosphate. The efficiency of phosphate and potash manuring could be slightly increased by taking soil type into account.

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“…Russell (1956), and Draycott et al (1975Draycott et al ( , 1976 obtained some benefit from application in autumn before ploughing. Conversely, Adams (1961), Webber (1961), Holmes et al (1973), Last & Draycott (1977) and Clare & Harrod (1978) showed small benefits from seedbed applications. In the remaining studies there was essentially no difference between treatments.…”

Section: Sugar Yield and Sugar Concentrationmentioning

confidence: 99%

“…recommendations for these nutrients are, in part, To try to reconcile these conflicting data it was based upon conflicting evidence. For instance, Webber decided to conduct a new series of experiments, using (1961) and Adams (1961) obtained beneficial re-modern varieties and management techniques, to study the interaction of soil type, time of fertilizer application and weather patterns on the yield and processing quality of sugarbeet in England.…”

Section: Time Of Application and Chemical Form Of Potassiummentioning

confidence: 99%

“…There was a slight tendency for the spring treatment to perform better when there was more winter rainfall than average. The weakness of this relationship may be explained by the fact that whilst Na may leach in winter this is unlikely for K, and a sufficiency of K can compensate for any lack of Na (Adams 1961;Holmes et al 1961). A further complication is that the beneficial effect of Na may be negated by crop damage due to osmotic stress following application to the seedbed.…”

Section: Sugar Yield and Sugar Concentrationmentioning

confidence: 99%

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Time of application and chemical form of potassium, phosphorus, magnesium and sodium fertilizers and effects on the growth, yield and quality of sugarbeet (Beta vulgaris)

Allison¹,

Jaggard²,

Armstrong³

1994

J. Agric. Sci.

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SummarySummary Between 1985 and 1988, 14 field experiments at different sites in the UK assessed the effect of applying P, K, Na and Mg in autumn, early spring, late spring or as a split application in both autumn and late spring on the growth, yield and processing quality of sugarbeet. Supplementary experiments compared Kaynitro and Chilean nitrate of soda. None of the treatments had any effect on plant population densities, and any differences in sugar yield could be explained by the leaching of Na. The effects on processing quality were inconsistent and unlikely to be of agronomic or economic significance. Generally, Kaynitro and Chilean nitrate of soda performed no better than the other fertilizers so it is unlikely that their extra cost would be justified. Apart from Na, the timing of nutrient application appeared to be unimportant, even on soils of low fertility. However, Na, being very mobile, was best applied in spring.

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The effect of time of application of phosphate and potash on sugar beet

Cited by 16 publications

References 1 publication

The response of sugar beet to potassium and sodium fertilizers

The response of sugar beet to potassium and sodium fertilizers

The response of sugar beet to fertilizer and the effect of farmyard manure

Time of application and chemical form of potassium, phosphorus, magnesium and sodium fertilizers and effects on the growth, yield and quality of sugarbeet (Beta vulgaris)

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