Matches in SemOpenAlex for { <https://semopenalex.org/work/W1966815460> ?p ?o ?g. }
Showing items 1 to 82 of
82
with 100 items per page.
- W1966815460 endingPage "312" @default.
- W1966815460 startingPage "301" @default.
- W1966815460 abstract "In Southern Rhodesia the nitrogen mineralized on laboratory incubation of soil samples taken towards the end of the dry season appears to provide a good index of the nitrogen likely to be available for crop use under field conditions during the subsequent growing season. Incubation for 2 weeks at 35° C., at moistures near field capacity, has been adopted. The occurrence of some soils showing a time-lag between the commencement of ammonification and the commencement of nitrification makes it desirable to determine both ammonia- and nitrate-nitrogen. Owing to practical difficulties in obtaining representative samples of both soil and undecomposed organic matter which has been recently ploughed under, and because it has not been found possible to incorporate this organic matter with the soil sample for incubation in such a way as to reproduce, during the incubation period, its overall effect in the field, soil samples for advisory work are at present sieved before incubation and allowances made for the probable effects of such organic matter when interpreting the results obtained. The nitrogen mineralized during incubation has been shown to be of the same order as that mineralized in miniature lysimeters maintained in the field under bare-fallow conditions for the duration of the growing season. The mineralized nitrogen obtained after incubation has also been shown to correlate well (r =+.83) with yields, at zero fertilizer-nitrogen levels, of maize and tobacco obtained in the field during seasons of good rainfall. Responses to fertilizer nitrogen in Rhodesia have been found to be 1–2 bags of maize or 100-zoo lb. of tobacco per 10 lb. of nitrogen applied, corresponding to an efficiency of uptake of about 30–60 per cent." @default.
- W1966815460 created "2016-06-24" @default.
- W1966815460 creator A5000531585 @default.
- W1966815460 creator A5056145169 @default.
- W1966815460 creator A5076171137 @default.
- W1966815460 date "1957-09-01" @default.
- W1966815460 modified "2023-09-23" @default.
- W1966815460 title "ESTIMATION OF AVAILABLE NITROGEN FOR ADVISORY PURPOSES IN SOUTHERN RHODESIA" @default.
- W1966815460 cites W2002924829 @default.
- W1966815460 cites W2004921953 @default.
- W1966815460 cites W2068951224 @default.
- W1966815460 cites W2074448788 @default.
- W1966815460 cites W2076022270 @default.
- W1966815460 cites W2089690118 @default.
- W1966815460 doi "https://doi.org/10.1111/j.1365-2389.1957.tb01890.x" @default.
- W1966815460 hasPublicationYear "1957" @default.
- W1966815460 type Work @default.
- W1966815460 sameAs 1966815460 @default.
- W1966815460 citedByCount "27" @default.
- W1966815460 countsByYear W19668154602012 @default.
- W1966815460 countsByYear W19668154602013 @default.
- W1966815460 countsByYear W19668154602015 @default.
- W1966815460 countsByYear W19668154602016 @default.
- W1966815460 countsByYear W19668154602018 @default.
- W1966815460 countsByYear W19668154602019 @default.
- W1966815460 crossrefType "journal-article" @default.
- W1966815460 hasAuthorship W1966815460A5000531585 @default.
- W1966815460 hasAuthorship W1966815460A5056145169 @default.
- W1966815460 hasAuthorship W1966815460A5076171137 @default.
- W1966815460 hasConcept C137660486 @default.
- W1966815460 hasConcept C143701427 @default.
- W1966815460 hasConcept C159390177 @default.
- W1966815460 hasConcept C159750122 @default.
- W1966815460 hasConcept C164752452 @default.
- W1966815460 hasConcept C178790620 @default.
- W1966815460 hasConcept C185592680 @default.
- W1966815460 hasConcept C25642318 @default.
- W1966815460 hasConcept C2780560099 @default.
- W1966815460 hasConcept C39432304 @default.
- W1966815460 hasConcept C48743137 @default.
- W1966815460 hasConcept C49045045 @default.
- W1966815460 hasConcept C537208039 @default.
- W1966815460 hasConcept C55493867 @default.
- W1966815460 hasConcept C6557445 @default.
- W1966815460 hasConcept C86803240 @default.
- W1966815460 hasConceptScore W1966815460C137660486 @default.
- W1966815460 hasConceptScore W1966815460C143701427 @default.
- W1966815460 hasConceptScore W1966815460C159390177 @default.
- W1966815460 hasConceptScore W1966815460C159750122 @default.
- W1966815460 hasConceptScore W1966815460C164752452 @default.
- W1966815460 hasConceptScore W1966815460C178790620 @default.
- W1966815460 hasConceptScore W1966815460C185592680 @default.
- W1966815460 hasConceptScore W1966815460C25642318 @default.
- W1966815460 hasConceptScore W1966815460C2780560099 @default.
- W1966815460 hasConceptScore W1966815460C39432304 @default.
- W1966815460 hasConceptScore W1966815460C48743137 @default.
- W1966815460 hasConceptScore W1966815460C49045045 @default.
- W1966815460 hasConceptScore W1966815460C537208039 @default.
- W1966815460 hasConceptScore W1966815460C55493867 @default.
- W1966815460 hasConceptScore W1966815460C6557445 @default.
- W1966815460 hasConceptScore W1966815460C86803240 @default.
- W1966815460 hasIssue "2" @default.
- W1966815460 hasLocation W19668154601 @default.
- W1966815460 hasOpenAccess W1966815460 @default.
- W1966815460 hasPrimaryLocation W19668154601 @default.
- W1966815460 hasRelatedWork W1966815460 @default.
- W1966815460 hasRelatedWork W1981762288 @default.
- W1966815460 hasRelatedWork W2011994831 @default.
- W1966815460 hasRelatedWork W2027233813 @default.
- W1966815460 hasRelatedWork W2050424608 @default.
- W1966815460 hasRelatedWork W2084103827 @default.
- W1966815460 hasRelatedWork W2160253575 @default.
- W1966815460 hasRelatedWork W2266801970 @default.
- W1966815460 hasRelatedWork W2368917187 @default.
- W1966815460 hasRelatedWork W4211003958 @default.
- W1966815460 hasVolume "8" @default.
- W1966815460 isParatext "false" @default.
- W1966815460 isRetracted "false" @default.
- W1966815460 magId "1966815460" @default.
- W1966815460 workType "article" @default.