spspecies and it will be unprecedented, whihich is how do you sustainably f feed a popopulation o of 9 bililli or 0 million?n? most peoplple cannot a affor fefertilizerss and irrigation, o thee crops h have to deaeal with fefertility anand drought.t. drout is a problblem in countries like the u.s. we are trying to understand d hw get p plants to a adapt to thee conditionsns and grow together despite the stresses. >> how can you grow w crops wiwithout nutrtrients and war? willif you want a plant that do well under drought conditions o or soils, you needo go to a a system. scientists have known this for many years. it is s portant r r getting water. but whwhat ectly is aboutut roots that is most important? what is the differencece betweea good root system a and pentt system?? -- syststem? one e of the main components of the system i is ving good architectu, meaning thehe shape of the system, where it is in the soil. the main backbone routes of the root system of the main structural, architectural scaffolding of the root systemem from which the lateral roots and all the ferer roots ememerg. they