oh and what substances do plants need in small amounts for healthy growth?
2007-12-28 06:24:12 · 7 answers · asked by Rebecca xxx 2 in Science & Mathematics ➔ Biology
> what chemicals can be added to fields to help plants grow?
Fixed nitrogen (as ammonia and nitrate), phosphates, potassium. Most fertilizers contain these.
> what substances do plants need in small amounts for healthy growth?
Magnesium, sulfates, calcium, iron, and a few others.
2007-12-28 06:29:34 · answer #1 · answered by Anonymous · 2⤊ 0⤋
Phosphorous
2007-12-28 06:34:25 · answer #2 · answered by leopardshaz 5 · 0⤊ 0⤋
Nitrates and phosphates are two good ones. They need trace minerals like we do, copper is needed to make chlorophyll.
2007-12-28 06:28:47 · answer #3 · answered by Gavin T 7 · 1⤊ 0⤋
the mane three are nitrogen, phophorous, potassium. they also need other chemicals like copper and iron .
2007-12-29 05:12:51 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Miracle Gro! :) H20 helps, too.
2007-12-28 06:32:20 · answer #5 · answered by Thomas E 7 · 0⤊ 0⤋
leave the chemicals alone, you cant beat good old fashioned sh...t
2007-12-28 06:32:28 · answer #6 · answered by SUE G online 6 · 0⤊ 0⤋
nitrates and phosphates
2007-12-30 05:29:45 · answer #7 · answered by ? 6 · 0⤊ 0⤋