The graph below shows the effects of different brands of fertilizer on bean plant growth.
Sample Response
The graph shows how bean plantplant’s growth is affected when different fertilizers are used. It is evident that Granny’s Bloomers and K Mark are the two most effective fertilizersGranny’s Bloomers and K Mark fertilizer are two most effective composts in terms of bean plants growth while Miracle Gro is the least effectiveMiracle Gro is least effective. According to the bar chartcolumn graph, bean plants grow as high as 13 centimetres without any fertilizer. Among the given composts, Granny’s Bloomers has the most significant effect on plantits growth raising the average heightwhich helps this plant grow to 27 cm on averageon an average. The second most efficient fertilizer, K Mark, increaseshike the growth to 22 cm which is 911 cm higher than the bean plants’ height without fertilizerbean plants natural growth. When Job’s House Plant Spikers is utilised, the bean plants develop to 15 cm, a slight increase overthan the natural growth. However, with Miracle Growith the Miracle Gro, bean plants growraise to only 6 cm, 7 cm lowershorter than its natural growth without any fertilizer. In summary, among the four fertilizer brands, Granny’s Bloomers is the most effective one in terms of bean plant’s growth while Miracle Gro negatively affects its growth.
Why this response received Band 6.5
The report identifies the strongest and weakest fertilizers and covers every category with mostly accurate figures and useful comparisons. The main limitation is a factual error: K Mark's 22 cm result is nine, not eleven, centimetres above the 13 cm no-fertilizer baseline, while several grammar and word-choice errors reduce precision. Check every calculation against the chart and use accurate comparative structures and growth verbs.
IELTS Writing Criteria Scores
Task Achievement
The overview selects the main extremes and the report covers all five conditions, but the stated difference between K Mark and no fertilizer is inaccurate.
Verify each comparison against the chart, noting that 22 cm is nine centimetres above the 13 cm baseline.
Coherence and Cohesion
The report follows a clear introduction-overview-detail progression and moves logically from the strongest results to the weakest, though paragraph separation is limited.
Place the overview in its own paragraph and group the higher and lower results into two concise detail paragraphs.
Lexical Resource
There is adequate range for describing rankings and differences, but words such as 'composts,' 'hike,' and 'raise' are inaccurate or unnatural in context.
Use precise chart language such as 'fertilizers,' 'raises the average height,' 'grows to,' and 'lower than the baseline.'
Grammatical Range and Accuracy
Meaning remains clear and some complex sentences are attempted, but errors in agreement, articles, possessives, and comparative constructions occur repeatedly.
Check subject-verb agreement and comparison forms, for example 'K Mark raises growth' and 'a slight increase over the natural growth.'
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IELTS Academic Writing Task 1
The graph below shows the effects of different brands of fertilizer on bean plant growth.
Your response
Write the task yourself, then compare your choices with the annotated response.