Use of soil and fertilizer nitrogen by cotton in relation to the date of fertilizer application

Khidirnazarov, A.

Uzbekskii Biologicheskii Zhurnal 4: 68-69

1984


Accession: 001504672

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Abstract
Uptake by cotton of N from soil and fertilizer in relation to date of application as 15N-labelled ammonium nitrate was studied. Irrespective of application date, plants accumulated more N from the soil than from fertilizer. Applied N promoted the additional mobilization of soil N; its amount did not vary much with N application dates.