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100%: Alexander zu Dreele: Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands (ISBN: 9783865376039) 2005, Cuvillier Verlag, Erstausgabe, in Englisch, Taschenbuch.Nur diese Ausgabe anzeigen…
82%: Dreele, Alexander zu: Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands (ISBN: 9783736916036) 2005, Cuvillier Verlag, Erstausgabe, in Englisch, auch als eBook.Nur diese Ausgabe anzeigen…
Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands
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Bester Preis: € 15,37 (vom 10.11.2015)1
Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands (2005)
DE PB US FEISBN: 9783865376039 bzw. 3865376037, in Deutsch, 140 Seiten, Cuvillier, E, Taschenbuch, gebraucht, Erstausgabe.
Lieferung aus: Deutschland, Versandfertig in 1 - 2 Werktagen.
Von Händler/Antiquariat, Buchhandlung Leselust.
Phosphorus, with nitrogen and potassium, plays a major role in crop production. It occurs in all plants, but quantities are much smaller than those of nitrogen and potassium. In tropical soils, phosphorus (P) is one of the major nutrient elements limiting crop production. This is not due to a shortage of total P in the soil, but to plant P availability. Total contents of P in soils range from about 100 to 2500 kg ha-1 in the upper 20 cm of soil; plant available P reaches from 15 in virgin to 231 kg ha-1 in cultivated soils (Tisdale and Nelson, 1975). The principal reason for the low plant availability of P is that many tropical soils have extremely high capacities to fix P. Phosphorus-fixing soils are able to retain large amounts of P before they provide satisfactory crop growth. Fixation is understood as the transformation of soluble forms of P into less soluble ones after they react with the soil. If only Ferralsols, Acrisols and Plinthosols are considered as P fixing soils and Nitosols, which in suborders as well might have P fixing capacities are excluded, it is evident that more than 50% of the total area in tropical regions are affected by P fixation and the subsequent problems for agriculture (FAO, 1990). Against the background of a rapid population growth, these areas have a need for an improvement of soil fertility in terms of a higher plant P availability which will increase the sustainability of these land use systems. The high fixation capacity of P in tropical soils is caused by their residual accumulation of Fe- and Al-oxydes/hydroxydes and a decreased pH during a long formation time under a humid climate. This fixation is dependent on the variable charge of the oxydes/hydroxides in the soil. At a low pH the higher proton concentration in the soil solution leads to an increased non-specific adsorption of P. Broschiert, Ausgabe: 1., Aufl. Label: Cuvillier, E, Cuvillier, E, Produktgruppe: Book, Publiziert: 2005-09-12, Studio: Cuvillier, E.
Von Händler/Antiquariat, Buchhandlung Leselust.
Phosphorus, with nitrogen and potassium, plays a major role in crop production. It occurs in all plants, but quantities are much smaller than those of nitrogen and potassium. In tropical soils, phosphorus (P) is one of the major nutrient elements limiting crop production. This is not due to a shortage of total P in the soil, but to plant P availability. Total contents of P in soils range from about 100 to 2500 kg ha-1 in the upper 20 cm of soil; plant available P reaches from 15 in virgin to 231 kg ha-1 in cultivated soils (Tisdale and Nelson, 1975). The principal reason for the low plant availability of P is that many tropical soils have extremely high capacities to fix P. Phosphorus-fixing soils are able to retain large amounts of P before they provide satisfactory crop growth. Fixation is understood as the transformation of soluble forms of P into less soluble ones after they react with the soil. If only Ferralsols, Acrisols and Plinthosols are considered as P fixing soils and Nitosols, which in suborders as well might have P fixing capacities are excluded, it is evident that more than 50% of the total area in tropical regions are affected by P fixation and the subsequent problems for agriculture (FAO, 1990). Against the background of a rapid population growth, these areas have a need for an improvement of soil fertility in terms of a higher plant P availability which will increase the sustainability of these land use systems. The high fixation capacity of P in tropical soils is caused by their residual accumulation of Fe- and Al-oxydes/hydroxydes and a decreased pH during a long formation time under a humid climate. This fixation is dependent on the variable charge of the oxydes/hydroxides in the soil. At a low pH the higher proton concentration in the soil solution leads to an increased non-specific adsorption of P. Broschiert, Ausgabe: 1., Aufl. Label: Cuvillier, E, Cuvillier, E, Produktgruppe: Book, Publiziert: 2005-09-12, Studio: Cuvillier, E.
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Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands als eBook von
DE NW EB DLISBN: 9783736916036 bzw. 3736916035, in Deutsch, neu, E-Book, elektronischer Download.
Lieferung aus: Deutschland, zzgl. Versandkosten.
Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands ab 13.3 EURO, Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands ab 13.3 EURO.
Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands ab 13.3 EURO, Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands ab 13.3 EURO.
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Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands als eBook Download von
DE NW EBISBN: 9783736916036 bzw. 3736916035, in Deutsch, Cuvillier Verlag, neu, E-Book.
Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands: Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands:
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Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands
~EN PB NWISBN: 3865376037 bzw. 9783865376039, vermutlich in Englisch, Cuvillier Verlag, Taschenbuch, neu.
Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands ab 17.99 € als Taschenbuch: . Aus dem Bereich: Bücher, Wissenschaft, Umweltwissenschaft,.
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Growth and Phosphorus Nutrition of Maize Grown in Mixed or Sole Stands (2005)
DE NW FE EB DLISBN: 9783736916036 bzw. 3736916035, in Deutsch, 140 Seiten, Cuvillier Verlag, neu, Erstausgabe, E-Book, elektronischer Download.
Lieferung aus: Deutschland, E-Book zum Download, Versandkostenfrei.
Von Händler/Antiquariat, Amazon Media EU S.à r.l.
Die Beschreibung dieses Angebotes ist von geringer Qualität oder in einer Fremdsprache. Trotzdem anzeigen
Von Händler/Antiquariat, Amazon Media EU S.à r.l.
Die Beschreibung dieses Angebotes ist von geringer Qualität oder in einer Fremdsprache. Trotzdem anzeigen
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