Total-and NO3-nitrogen level in different parts of the potato haulm as an index of nutritional status

Bærug, R.

doi:10.1007/bf02368150

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…For the preparation of graphs and tables results have been used from the following papers: Wilfarth et al (1906), Appleman & Miller (1926), Lehmann (1926), Ahmed (1931), Dastur & Agnihotri (1934), Singh & Mathur (1937, 1938 cited by Burton (1966), Lampitt et al (1945), Street et al (1946), Wolf & Duggar (1946), Barker (1950), Minina (1953), Carpenter (1957), Plaisted (1957), Passeschnitschenko (1957), Thorne (1960), Buhr (1961) cited by Mengel (1971), Radley et al (1961), Hagemann (1962Hagemann ( , 1964, Johnston & Rowberry (1962), Mtiller (1962Mtiller ( , 1964Mtiller ( , 1975a, Werner (1962), Wittstock (1962), Carpenter (1963), Heyland (1963), Baerug (1964), P~itzold & Stricker (1964), Burt (1965), Lorenz (1965) cited by Smith (1977), Raeuber & Engel (1966), Moorby (1968), Vertregt (1968), Hughes & Evans (1969), Soltanpour (1969), Staikov (1969), Burton & Wilson (1970), …”

Section: Introductionmentioning

confidence: 99%

Development, growth and chemical composition of the potato crop (Solanum tuberosum L.). I. leaf and stem

Kolbe

Stephan-Beckmann²

1997

Potato Res

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Section: Introductionmentioning

confidence: 99%

Development, growth and chemical composition of the potato crop (Solanum tuberosum L.). I. leaf and stem

Kolbe

Stephan-Beckmann²

1997

Potato Res

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“…Corresponding values for late season were 5,000 and 3,000 ppm. However, Berug (1964), in Norway, concluded that, under the climatic conditions prevailing during his study, the values for mid-season could be about 40% lower than the above values and, at late season, N0 3 -N could be nearly absent, without any reduction in yield .…”

Section: Studies Regarding Nitrogen and Plant Populationmentioning

confidence: 75%

“…It further appears that, of the total N and N03-N, the former was better correlated with yield. The authors also pointed out that the difficulty in evaluating and utilizing critical N levels (sufficiency levels), is that the procedures as to extraction, analytical method, plant parts analyzed, and time of sampling has varied considerably (Berug, 1964;Doll et al ., 1971;Gately, 1971).…”

Section: Studies Regarding Nitrogen and Plant Populationmentioning

confidence: 99%

Effect of nitrogen, plant population, and plant maturity on potato (Solanum tuberosum L.) seed tuber production

Araya¹,

Marco²

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The two cultivars used in this study were Red Norland, an early red type, and Kennebec, a late white type. 'Kennebec' This cultivar was developed by the USDA and released in 1948 from a cross of two USDA seedlings, 8127 x 96-95. It has midseason to late maturity. Plants are large, spreading, thick, prominentlyangled stems without pigmentation. Leaves are large and dark green. Flowers are white. Tubers are large, eliptical to oblong, with shallow eyes, smooth white skin, and white flesh. . It is considered a general purpose potato that bakes, boils, and fries satisfactorily and is also desirable for french frying or chipping. This is the second popular cultivar following 'Russet Burbank' and represents about 18% of the total volume of potatoes grown in the United States (Lauer et al ., 1963; Thornton and Sieczka, 1980). 'Red Norland' Red Norland, an early cultivar, was developed in North Dakota and released in 1957 from the cross, Redkote x ND626. It has medium large, spreading vines with thick, prominently angled green stems and medium large, slightly closed, green leaves. The flowers are purple. . Tubers are medium sized, mostly round, medium red color, with smooth skin, relatively shallow eyes, the same color as the skin, and white flesh. It produces a high percentage of U.S. No. 1 tubers and is used as a fresh market cultivar. This cultivar is the predominant early, red cultivar grown in Iowa and represents about 3% of the total volume of potatoes grown in the United States (Lauer et al ., 1963; Thornton and Sieczka, 1980).

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Total nitrogen concentration in leaves of potatoes (Solanum tuberosumL.) as an index of nutritional status

Gupta

Saxena

1976

J. Agric. Sci.

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SummaryLeaf samples were collected, at weekly intervals, throughout the growing season, from potato (Solanum tuberosumL.) plants supplied with varying amounts of nitrogen (0, 60, 120, 180 and 240 kg N/ha) and analysed for total N. Application of nitrogen increased the N concentration in the green leaves at all stages of growth. There was a significant curvilinear relationship between the final tuber yield and the total N concentration in the leaves at 48–90 days after planting in 1968–9 and at 79–107 days after planting in 1969–70. The N concentration at 70–90 days after planting was consistently related to the final tuber yield in both years. Thus this period was ideal for assessing the nitrogen status of potato plants. The critical concentration of total nitrogen generally decreased with advance in age. It ranged from 4·65% at 76 days to 3·30% at 90 days during 1968–9, whereas in 1969–70 it ranged from 4·20% at 79 days to 3·80% at 93 days. During the period from 83 to 86 days the critical percentage was around 3·6% in both the years.

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Total-and NO3-nitrogen level in different parts of the potato haulm as an index of nutritional status

Cited by 3 publications

References 7 publications

Development, growth and chemical composition of the potato crop (Solanum tuberosum L.). I. leaf and stem

Development, growth and chemical composition of the potato crop (Solanum tuberosum L.). I. leaf and stem

Effect of nitrogen, plant population, and plant maturity on potato (Solanum tuberosum L.) seed tuber production

Total nitrogen concentration in leaves of potatoes (Solanum tuberosumL.) as an index of nutritional status

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