1.   Amaryllis are known as heavy feeders, and the bulbs benefit from organic and synthetic nutrient sources.

2.   Amaryllis are known as heavy feeders, and Prasek says the bulbs benefit from organic and synthetic nutrient sources.

3.   Dr. John R. Oppenheimer, director of environmental sciences at the College of Staten Island, said mold needs a nutrient source like Sheetrock plaster wallboard to thrive.

4.   With the wet basements at the library, the mold has probably found a nutrient source in Sheetrock.

a. + source >>共 506
military 8.28%
diplomatic 6.34%
official 3.28%
palestinian 3.01%
informed 2.84%
major 2.75%
unidentified 2.45%
judicial 2.12%
main 2.11%
israeli 1.97%
nutrient 0.02%
nutrient + n. >>共 51
level 9.17%
deficiency 8.26%
solution 7.34%
content 5.50%
need 4.59%
supplement 4.59%
loss 3.67%
requirement 3.67%
source 3.67%
value 2.75%
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