Effects of boron fertilization on calcium:boron ratio and boron mobility in cauliflower

Chander, G and Sharma, S and Sharma, V and Sharma, S and Verma, S and Verma, TS (2014) Effects of boron fertilization on calcium:boron ratio and boron mobility in cauliflower. Journal of Research, 51 (2). pp. 128-131. ISSN 2277-1271

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Greenhouse studies were conducted on two different alfisols, Bajaura (Loam) and Junga (Sandy loam), that are deficient in boron (B) for cauliflower (Brassica oleracea L. var. botrytis). The calcium:boron (Ca:B) ratio in cauliflower leaves with applied B (1 to 3 mg kg−1 soil) varied from 1276 to 521 in the Bajaura soil with high exchangeable-Ca and no deficiency or toxicity symptoms were evident. In the Junga soil with low exchangeable-Ca, however, the Ca:B ratio varied from 505 to 223 with toxicity symptoms visible when 2 and 3 mg kg−1 B has been applied. This corresponds to a Ca:B ratio of 256 and 223. Farm yard manure application showed an ameliorating effect on Ca:B ratio with a tendency to decrease a high Ca:B ratio in the absence of B application and increase a lower Ca:B ratio when incorporated with higher levels of B. The B mobility from leaves to curd decreased with increasing levels of B application and thus provided a circumstantial evidence for B retranslocation under conditions of low B supply i.e. conditional mobility.

Item Type: Article
Divisions: RP-Resilient Dryland Systems
Uncontrolled Keywords: Boron mobility, Ca:B ratio, Cauliflower, Farm yard manure
Subjects: Others > Soil Science
Others > Fertilizer Applications
Depositing User: Mr Siva Shankar
Date Deposited: 30 Jul 2014 09:02
Last Modified: 30 Jul 2014 09:19
URI: http://oar.icrisat.org/id/eprint/8257
Official URL: http://www.indianjournals.com/ijor.aspx?target=ijo...
Acknowledgement: UNSPECIFIED
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