الموضوعات المستخلصة من بحثك.
الموضوعات المستخلصة من بحثك.
soil analysis
Tree culture
2
silvi culture
2
Agricultural geology
1
Agriculture - quantitative analysis
1
Cotton - Australia
1
Culture techniques
1
Soil chemistry
1
Soil parameters
1
Symptom manifestation in tropical tuber crops
1
Toxicity Condition
1
agricultural chemistry
1
classification of rocks
1
growth - cotton
1
nitrogen fixation
1
preservation
1
sampling of soil
1
sampling techniques
1
soil reaction
1
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