A sua pesquisa - "((irrigation requirements) or (nutrition requirements)) based excitation from seeds" - não corresponde a nenhum registo.

Talvez deva tentar algumas variações de ortografia:
irrigation requirements » irrigation equipment
nutrition requirements » nutritional requirements, nutrient requirements
based excitation » base excitation, based elicitation, laser excitation
excitation from » elicitation from, excitation fronts, exportation from
seeds" » needs", seed"

Pode obter mais resultados ajustando a pesquisa.