@article{fdi:010091339, title = {{O}ptimizing soil and plant functions : combinatory design of fertilizing resources assemblage for rainfed rice in {M}adagascar}, author = {{R}aminoarison, {M}. and {J}aillard, {B}. and {R}azafimbelo, {T}. and {R}ahajaharilaza, {K}. and {B}lanchart, {E}ric and {T}rap, {J}ean}, editor = {}, language = {{ENG}}, abstract = {{T}he lack of affordable mineral fertilizers and scarcity of organic materials cause decline in soil fertility for smallholder farmers and producers in the highlands of {M}adagascar, challenging crop productivity. {T}o fulfill plant growth and nutrition, we explored the effect of 132 combinations of 17 different fertilizing resources, both organic and mineral, on rice growth and nutrition using a greenhouse experiment. {T}wo clustering approaches were used to evaluate the effects of fertilizing resources: elemental clustering and functional clustering. {E}lemental clustering grouped resources based on their elemental intrinsic composition, while functional clustering grouped resources based on their effect in improving plant growth and nutrition when combined in soil. {W}e found that some resources closely grouped based on their elemental composition exhibited different effects on plant growth and nutrition when combined in soil. {Z}ebu horn emerged as a particular organic resource in elemental clustering, and a key resource in functional clustering by promoting plant growth and nutrition when combined with other resources in soil. {I}ts unique elemental composition played a significant role in driving positive interactions with other resources. {W}e proposed to extend the concept of 'assembly motif' within soil fertilization strategy, suggesting that the combination of functional groups of resources determines better their fertilizing effect than their elemental composition. {R}esources inducing high interaction effects should be combined with those having high elemental composition to optimize crop productivity.}, keywords = {soil fertility management ; elemental clustering ; functional clustering ; {F}erralsols ; {MADAGASCAR}}, booktitle = {}, journal = {{E}xperimental {A}griculture}, volume = {60}, numero = {}, pages = {e18 [19 p.]}, ISSN = {0014-4797}, year = {2024}, DOI = {10.1017/s0014479724000103}, URL = {https://www.documentation.ird.fr/hor/fdi:010091339}, }