Efficacy of crushed ore colemanite as boron fertilizer for rice grown under calcareous soil conditions
Boron (B) deficiencies occur over a wider range of soils and crops in the world. Different sources of fertilizers are used to supply sufficient amounts of B for healthier plant growth. The effectiveness of crushed ore colemanite as B source for rice crop under flooded calcareous soil was evaluated i...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Agriculture, Faisalabad, Pakistan
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/29392/ http://psasir.upm.edu.my/id/eprint/29392/1/Efficacy%20of%20crushed%20ore%20colemanite%20as%20boron%20fertilizer%20for%20rice%20grown%20under%20calcareous%20soil%20conditions.pdf |
| Summary: | Boron (B) deficiencies occur over a wider range of soils and crops in the world. Different sources of fertilizers are used to supply sufficient amounts of B for healthier plant growth. The effectiveness of crushed ore colemanite as B source for rice crop under flooded calcareous soil was evaluated in a glass house study. We studied the effects of powder colemanite (PC) and granular colemanite (GC) at the rates of 0, 1, 2, and 3 kg B ha-1 on growth and yield parameters of rice crop. Powder colemanite application at 2 and 3 kg B ha-1 significantly increased plant height, number of tillers and panicles plant-1, number of grains panicle-1, weight of 1000 grains and B concentration in grain compared to those observed due to application of 0 and 1 kg B ha-1. Rice crop applied B at 3 kg ha-1 in the form of PC produced significantly (18% increase over control) higher grain yield than 0 kg B ha-1 treatment. The effectiveness of PC was higher in terms of yield and yield parameters of rice than the GC, The B source of PC was very effective in supplying B to rice crop, however GC applied pots produced significantly lower yields because of its larger particle size which was the controlling factor in B release from the fertilizer. |
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