dr. kenmore: we have been able basically to substitute brains for chemicals. and in that sense, the growth rate stays up but less chemicals are used. narrator: in the yaqui valley of mexico, researchers are finding that excess fertilizer runoff from wheat crops is affecting marine life in the gulf of california. so they are turning to technology to decrease fertilizer inputs without decreasing yields. dr. ortiz-monasterio: technology like this can result in a win-win situation, where the farmer benefits and at the same time the environment benefits. narrator: by showing farmers how to reduce pesticide and fertilizer use, both research teams hope to minimize environmental impacts while still producing enough food for our growing population. a staple throughout the globe, rice is an eential crop, providing 60% of the calories for half of the world's population. dr. peter kenmore of the food and agriculture organization of the united nations in rome, italy, has been conducting research about rice production in countries in southeast asia for 30 years. dr. kenmore

dr. grill. taking it with you. >> it's like a gas hibachi. >> camping, going to the beach. >> walking with it. >> and now we've got the mac daddy. this is the kenmoreer with it. 788 square inches, gentlemen, of grilling space on this. got a warming tray up here, all stainless steel, another burner on this side. plenty of storage, a lot for your money on sale for $720. >> very nice. eventually, there's no snow an your lawn, you're able to mow it. >> i was going to ask you, are we almost there, al? >> we are almost there. >> this is the john deere. >> john deere. >> now, hop up there, al. >> come on. >> this is a d110. >> how comfortable is that, though? >> very comfortable. >> this has a steel frame, cast iron front, very durable, comfortable, and notice that lever on the right. that's the height adjust level. really easy to do. up and down, automatic transmission, very easy to drive and cup holder, al. >> cup holder. >> that's a solid point. >> $1,700 or something like that? >> worth it, especially you have a big lawn. >> push mower. >> you want to go green to cut the green, this is it. 18-inch cordless lawn mower and you can cut up to a third of a