Soil solution levels of nitrate nitrogen in a potato-buckwheat rotation

Rourke, R. V.

doi:10.1007/bf02871294

Cited by 9 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The crop is highly responsive to N fertilizer, but N fertilizer use efficiency is low (Rourke 1985;Porter and Sisson 1991). Consequently, growers striving to meet the crop's N requirements frequently over-fertilize.…”

mentioning

confidence: 99%

Petiole sap NO₃-N testing as a method for monitoring nitrogen nutrition of potato crops

Waterer¹

1997

Can. J. Plant Sci.

View full text Add to dashboard Cite

Waterer, D. 1997. Petiole sap NO 3 -N testing as a method for monitoring nitrogen nutrition of potato crops. Can. J. Plant Sci. 77: 273-278. Petiole sap NO 3 -N concentrations were tested as a means for monitoring crop nitrogen (N) status and N fertilizer responses in potatoes. An ion specific electrode was used to monitor sap NO 3 -N concentrations of three varieties of potatoes grown with differing amounts of N fertilizer in 1993-1995. Plots provided with varying amounts of fertilizer N applied prior to planting or as a split application were sampled on six occasions through the growing season. Sap NO 3 -N levels were positively correlated with petiole dry matter NO 3 -N levels. Petiole sap NO 3 -N levels reflected rates and timing of N fertilizer application. Sap NO 3 -N levels in the three cultivars showed similar changes with time after planting and increasing N fertilizer rates. However, sap NO 3 -N levels measured under a particular set of conditions were unique for each cultivar. The correlation between yields and sap NO 3 -N levels varied with the sampling date and cultivar. Recommendations were developed for critical sap NO 3 -N concentrations at various stages in the development of the three cultivars.Key words: Ion specific electrode, nitrate, petiole, nitrogen, tissue testing, Solanum tuberosum Waterer, D. 1997. Mesure du N nitrique dans la sève du pétiole comme moyen de suivre l'alimentation azotée chez la pomme de terre. Can. H. Plant Sci. 77: 273-278. L'objet des recherches était d'utiliser la mesure des concentrations de N nitrique dans la sève pétiolaire comme moyen de suivre l'évolution de l'alimentation azotée chez la pomme de terre. Au moyen d'une électrode ionospécifique, nous avons surveillé les concentrations de N nitrique dans la sève chez trois variétés de pomme de terre cultivées de 1993 à 1995 sous divers niveaux de fumure azotée. Des échantillons de tissus étaient prélevés à six reprises durant la saison de végétation dans les parcelles recevant les diverses doses de N en préplantation ou en apports fractionnés. Les concentrations de N nitrique de la sève étaient positivement corrélées avec celles mesurées dans la matière sèche des pétioles. Elles traduisaient, par ailleurs, les doses et les modalités de fumure N. Chez les trois cultivars, elles évoluaient de la même façon selon l'âge de la culture à partir de la plantation ainsi qu'en fonction de l'accroissement de la fumure N. Toutefois, les concentrations de N nitrique mesurées dans un jeu de conditions données étaient propres à chaque cultivar. La corrélation entre les rendements en tubercules et les concentrations de N nitrique de la sève variaient selon le cultivar et selon la date de prélèvement des tissus. L'auteur élabore des recommandations de fumure à partir des concentrations critiques de N nitrique de la sève à divers stades de croissance des trois cultivars.

show abstract

mentioning

confidence: 99%

Petiole sap NO₃-N testing as a method for monitoring nitrogen nutrition of potato crops

Waterer¹

1997

Can. J. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…Toplam N toprakta değişkenlik gösteren bir element olup, toprak azotunun kaynağını toprak organik maddesi veya humus oluşturur (Rourke, 1985;Bilen ve Sezen, 1993). Bu nedenle toprak organik maddesine bağlı olarak azotlu gübre uygulanmalıdır.…”

Section: Toprakların Besin Maddesi İçerikleriunclassified

“…Toplam N toprakta değişkenlik gösteren bir element olup, toprak azotunun kaynağını toprak organik maddesi veya humus oluşturur (Rourke, 1985;Bilen ve Sezen, 1993 Patates yetiştirilen toprakların alınabilir P kapsamlarının 0.1-113.2 kg P2O5/da arasında değiştiği belirlenmiştir (Tablo 2). Topraklar alınabilir P kapsamları yönünden Ülgen ve Yurtsever (1995)'e göre sınıflandırıldığında; % 37.61'inin çok az ve az, % 9.17'sinin orta, % 53.22'sinin yüksek ve çok yüksek seviyede P içerdiği görülmüştür (Şekil 5).…”

Section: Toprakların Besin Maddesi İçerikleriunclassified

Patates (Solanum tuberosum L.) Yetiştirilen Toprakların Verimlilik Durumu ve Potansiyel Besin Maddesi Sorunlarının Belirlenmesi

Özyazıcı¹,

Özyazıcı²,

Dengi̇z³

2020

European Journal of Science and Technology

View full text Add to dashboard Cite

Öz Bu araştırmada, patates (Solanum tuberosum L.) yetiştirilen toprakların verimlilik durumlarının toprak analizleriyle belirlenmesi ve potansiyel bitki besin maddesi sorunlarının ortaya konması amaçlanmıştır. Bu amaçla, Türkiye'nin Karadeniz Bölgesi'nde yer alan Ordu ve Trabzon illerinde patates tarımı yapılan arazilerden 109 adet toprak örneği alınmıştır. Toprak örneklerinde bazı fiziksel (tekstür) ve kimyasal toprak reaksiyonu (pH), elektriksel iletkenlik (EC), kireç, organik madde, toplam azot (N), alınabilir fosfor (P), ekstrakte edilebilir potasyum (K), kalsiyum (Ca), magnezyum (Mg), bor (B), demir (Fe), bakır (Cu), çinko (Zn) ve mangan (Mn) özellikleri belirlenmiştir. Araştırma sonucuna göre; toprakların ağırlıklı olarak (% 95.42'sinin) tınlı (orta bünyeli) topraklar olduğu ve tuzluluk yönünden sorun teşkil etmediği, patates için ideal pH aralığındaki toprakların oranının yaklaşık % 42.2 olduğu tespit edilmiştir. Büyük çoğunluğu az kireçli düzeyde olan patates topraklarının; % 51.37'sinde organik madde, % 86.24'ünde toplam N, % 53.22'sinde alınabilir P ve % 56.88'inde ekstrakte edilebilir K yeterli ve/veya yüksek düzeydedir. Ekstrakte edilebilir Ca ve Mg düzeylerinin büyük oranda iyi düzeyde olduğu araştırma topraklarının; % 45.87'si ekstrakte edilebilir B, % 35.78'inde ekstrakte edilebilir Zn ve % 11.93'ünde ekstrakte edilebilir Mn çok az/az düzeydedir. Patates tarımı yapılan toprakların ekstrakte edilebilir Fe ve Cu içerikleri yüksek/yeterli düzeyde bulunmuştur. Ordu ve Trabzon illerinde patates tarımı yapılan alanlarda mutlaka toprak analizlerine göre gübreleme programları düzenlenmeli ve yaprak analizleri de dikkate alınarak gübreleme önerilerinde bulunulmalıdır.

show abstract

“…On the other hand, a low nitrogen application rate may produce premature senescence in the plants due to early translocation of nitrogen from the leaves to the tubers [12]. The low efficiency of species such as S. tuberosum in assimilating nitrogen has been well documented [13,14]; an inappropriate use of this fertilizer may thus create environmental problems. For instance, unbalanced fertilization may intensify nitrogen leaching into water sources as well as N gaseous emission [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Biological and Physicochemical Parameters Related to the Nitrogen Cycle in the Rhizospheric Soil of Native Potato (Solanum phureja) Crops of Colombia

Flórez-Zapata

Uribe-Vélez

2011

Applied and Environmental Soil Science

View full text Add to dashboard Cite

Nitrogen (N) plays an important role in agricultural production. This study was designed to evaluate the presence of cultivable N cycle-associated microorganisms (nitrogen-fixing bacteria—NFB, proteolytic bacteria—PR, ammonifiers—AMO, ammonium-oxidizing bacteria—AOB, nitrite-oxidizing bacteria—NOB, and denitrifiers—DEN), and their relationship with physical-chemical and agronomic soil descriptors, inSolanum phurejarhizospheric soil samples, from traditional and organic crop management farms. A cluster analysis with the physical and chemical properties of soil, allowed to identify the organic matter content as an important factor that determines the outcome of that grouping. Significant differences () between farms were found in the abundance of this groups, but correlation analysis showed that proteolytic and nitrogen fixing bacteria were the main nitrogen associated functional groups affected by soils' physical-chemical characteristics. The amount of ammonia available is affected by the agricultural management strategy, which consequently affects the NFB abundance. Finally the results showed that PR, protease activity and soil properties related with organic matter transformation has a positive relationship with productivity, which given the high organic matter content of the Andean soils being studied, we conclude that nitrogen mineralization process has an important role in the nitrogen cycle and its bioavailability in this ecosystem.

show abstract

Soil solution levels of nitrate nitrogen in a potato-buckwheat rotation

Cited by 9 publications

References 9 publications

Petiole sap NO₃-N testing as a method for monitoring nitrogen nutrition of potato crops

Petiole sap NO₃-N testing as a method for monitoring nitrogen nutrition of potato crops

Patates (Solanum tuberosum L.) Yetiştirilen Toprakların Verimlilik Durumu ve Potansiyel Besin Maddesi Sorunlarının Belirlenmesi

Biological and Physicochemical Parameters Related to the Nitrogen Cycle in the Rhizospheric Soil of Native Potato (Solanum phureja) Crops of Colombia

Contact Info

Product

Resources

About

Soil solution levels of nitrate nitrogen in a potato-buckwheat rotation

Cited by 9 publications

References 9 publications

Petiole sap NO3-N testing as a method for monitoring nitrogen nutrition of potato crops

Petiole sap NO3-N testing as a method for monitoring nitrogen nutrition of potato crops

Patates (Solanum tuberosum L.) Yetiştirilen Toprakların Verimlilik Durumu ve Potansiyel Besin Maddesi Sorunlarının Belirlenmesi

Biological and Physicochemical Parameters Related to the Nitrogen Cycle in the Rhizospheric Soil of Native Potato (Solanum phureja) Crops of Colombia

Contact Info

Product

Resources

About

Petiole sap NO₃-N testing as a method for monitoring nitrogen nutrition of potato crops

Petiole sap NO₃-N testing as a method for monitoring nitrogen nutrition of potato crops