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2013 | 18 | 3 |
Tytuł artykułu

Content of total phosphorus in soil under maize treated with mineral fertilization against the phosphatase activity

Treść / Zawartość
Warianty tytułu
PL
Zawartość fosforu w glebie spod uprawy kukurydzy nawożonej mineralnie na tle aktywności fosfatazowej
Języki publikacji
EN
Abstrakty
EN
The aim of the paper was to determine changes in the content of total phosphorus and its selected forms in soil under maize treated with mineral fertilization. The activity ofenzymes participating in transformations of this bioelement was also investigated. In October 2008, soil was sampled from a field experiment set up at the Agricultural Experimental Station in Grabów nad Wis31, conducted by the IUNG Institute in Pu3awy. The experiment involved the application of nitrogen in the form of ammonium nitrate at rates of 0, 50, 100, 150, 200 and 250 kg N ha ?1 and concomitant P, K, Mg, Ca and S fertilization. The following determinations were made on the soil samples: the content of total phosphorus, phosphorus in organic compounds and available phosphorus as well as the activity of alkaline and acid phosphatases. The analysis of variance showed a signifi- cant effect of the experimental factors on changes in the content of total phosphorus and its selected f orms. The content of available phosphorus was 55.85 mg P E-R kg ?1 , which classified the soil to class III, that is with a moderate content of this nutrient. The lack of phosphorus fertilization (KMgCaS variant) as well as the use of high nitrogen rates changed the soil pho- sphorus abundance class from average to low. The soil content of phosphorus in organic compounds was about 25% of the total phosphorus content, but when nitrogen fertilization had been applied at the rates above 100 kg N ha ?1 , P org decreased to about 15%. The activity of phosphomonoesterases was the highest in soil from the treatments not fertilized with phosphorus (KMgCaS). A close dependence was found between the activity of acid phosphatase and the total phosphorus content or the content of its examined forms. The value of the coefficient of correlation between the AcP activity and the P E-R content in soil was r =-0.83, p <0.05.
PL
Słowa kluczowe
Wydawca
-
Rocznik
Tom
18
Numer
3
Opis fizyczny
p.415-424,fig.,ref.
Twórcy
  • Department of Biochemistry, University of Technology and Life Sciences in Bydgoszcz, Bernardynska 6, 85-029 Bydgoszcz, Poland
  • Department of Biochemistry University of Technology and Life Sciences in Bydgoszcz, Bydgoszcz, Poland
autor
  • Department of Biochemistry University of Technology and Life Sciences in Bydgoszcz, Bydgoszcz, Poland
Bibliografia
Uwagi
PL
Rekord w opracowaniu
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-4573b342-d61d-4a03-b3e9-2bc17f386ad3
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