ILEIA Newsletter - LEISA Magazine - Farming Matters FM 1987 ILEIA Newsletter Vol 3 #1
Published: 19 مئی 1987
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- Integrated nutrient supply
- Improved fallow
- Nitrogen transfer from legumes
- Cover crops on acid soils
- Sunnhemp
- Rock phosphate
- Micro-nutrient drain
- Soil conservation and shifting cultivators
- Cycles of poverty