Grain Legumes and Green Manures for Soil Fertility in ... - cimmyt
Grain Legumes and Green Manures for Soil Fertility in ... - cimmyt
Grain Legumes and Green Manures for Soil Fertility in ... - cimmyt
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pressed growth of most crops. The observations<br />
made <strong>in</strong> the 2001/02 season however <strong>in</strong>dicate that<br />
moisture is essential <strong>for</strong> legume growth. Legume<br />
biomass yields <strong>in</strong>crease with <strong>in</strong>crease <strong>in</strong> clay content,<br />
pH <strong>and</strong> soil fertility <strong>in</strong> gener,al. There are <strong>in</strong>teractions<br />
of the different soil characteristics such as<br />
soil moisture, clay content, soil pH, <strong>and</strong> soil fertility<br />
on legume biomass production. There is there<strong>for</strong>e, a<br />
need to explore the effects of the <strong>in</strong>teractions of tlie<br />
different soil characteristics on legume establishment,<br />
growth <strong>and</strong> biomass yield. <strong>Green</strong> manure legumes<br />
outyield gra<strong>in</strong> legumes <strong>and</strong> all legumes require<br />
some soil moisture to produce mean<strong>in</strong>gful<br />
biomass yields that can impact on soil fertility improvement.<br />
More data analysis is required to discrim<strong>in</strong>ate<br />
the importance of the various parameters<br />
measured. A spatial analysis of the data could help<br />
<strong>in</strong> draw<strong>in</strong>g up recommendation doma<strong>in</strong>s <strong>for</strong> the<br />
various legumes.<br />
Acknowledgements<br />
This work was supported by IFAO through a grant<br />
to TSBF-CIAT.<br />
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<strong>Gra<strong>in</strong></strong> legumes <strong>and</strong> <strong>Green</strong> <strong>Manures</strong> <strong>for</strong> <strong>Soil</strong> <strong>Fertility</strong> <strong>in</strong> Southern Africa<br />
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