EFFECT OF ZINC AND BORON ON YIELD AND CONCENTRATION OF NITROGEN, PHOSPHOROUS AND POTASSIUM IN THE CORN GRAIN

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AREF FARSHID

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Scientific Information Database

ISSN: 2588-4824

Journal Paper

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Journal: DYNAMIC AGRICULTURE Year:2008 | Volume:5 | Issue:2 Page(s): 133-153

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Title

EFFECT OF ZINC AND BORON ON YIELD AND CONCENTRATION OF NITROGEN, PHOSPHOROUS AND POTASSIUM IN THE CORN GRAIN

Author(s)

AREF FARSHID | Issue Writer Certificate

Keywords

CORN GRAINQ3

NITROGENQ3

PHOSPHOROUSQ3

POTASSIUMQ3

ZINCQ3

BORONQ3

Abstract

For the purpose of studying the effect of Zn and B fertilizers on the yield, concentration and uptake of N, P and K in the CORN GRAIN, a factorial experiment consisting of five levels of Zn (0, 15, 30 and 45 kg/ha Zn, as Zn solution spray) and four levels of B (0, 4, and 8 kg/ha as B, and B solution spray) in a completely randomized block design was conducted in three replications during 2002 in Fars Neyriz region of Iran,. A corn variety Single Cross 401 was the test crop. The effects of Zn and B on N, P and K concentration in the grain were insignificant. Application of Zn and B in all levels increased uptake of N and K in the grain. Application of Zn, only to the soil, increased P uptake in the grain. The use of 4 kg/ha and spraying of boric acid, increased P uptake by the grain. The lowest grain uptake of N, P and K were seen at no Zn and B levels. A high Zn content in the soil helped increasing the concentration and uptake of N in the grain by B application. Therefore, at high levels of Zn, there was a synergism between B and N. BORON spraying helped with increasing the concentration and uptake of N in the grain by Zn application. BORON application at low Zn levels had no effect on P and K concentration in the grain, but at high Zn level, increased P and K concentration in the grain. BORON use had no effect on K uptake by the grain at any level of the Zn, but at high Zn levels, it increased P grain uptake. High level of Zn in the soil helped with increase in P and K concentration as well as P grain uptake by B application.

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