EFFECT OF SOME ORGANIC MANURES AND MINERAL FORMS OF NITROGEN ON GROWTH, YIELD AND PHYSIOLOGICAL CHARACTERS OF SUGAR BEET GROWN ON A CALCAREOUS SOIL

Zaki, Raafat N.

doi:10.21608/fjard.2006.197569

EFFECT OF SOME ORGANIC MANURES AND MINERAL FORMS OF NITROGEN ON GROWTH, YIELD AND PHYSIOLOGICAL CHARACTERS OF SUGAR BEET GROWN ON A CALCAREOUS SOIL

Document Type : Research articles.

Author

Raafat N. Zaki

Soils, Water & Environ. Res. Inst., Agric. Res. Center, Giza, Egypt

10.21608/fjard.2006.197569

Abstract

A field experiment was conducted on a calcareous soil at
Noubaria region to identify response of sugar beet to fresh or
composted farmyard manures (FFYM or CFYM) at rate 10 of ton/fed
in combination with 40 kg N/fed added from different sources, i.e.,
urea, ammonium nitrate and diluted nitric acid. Plant samples were
taken after 16 and 25 weeks from planting to define vegetative
parameters (plant height, leaf numbers, root length and diameter).
Shoots and roots were chemically analyzed to determine chlorophyll
A, B, carotene, total soluble sugar and reducing sugar contents.
Data obtained showed that applying organic manures (FFYM and
CFYM) led to improve many of soil variables such as organic matter
content, soil pH, soil salinity, CEC and available NPK, with
superiority for CFYM. The combination of CFYM and ammonium
nitrate exhibited the best results of vegetative growth parameters,
yield, sugar concentration and its purity. Also, a positive correlation
was found between sugar purity and potassium content in leaves.
Reducing sugar content was more affected by the studied treatments
as compared to the total soluble sugar content.

Keywords