; (B) by redesignating paragraphs (7), (8), (12), (14), (15), (16), (17), (19), and (20) as paragraphs (5), (6), (7), (8), (9), (10), (11), (12), and (13); (C) in paragraph (11), as so redesignated, by inserting and harmful algal blooms after macro-algae systems ; and (D) by adding at the end the following: (14) Fertilizer and nutrient management initiative Research and extension grants may be made under this section for the purposes of carrying out research to improve fertilizer use efficiency in crops and examining nutrient management based on the source, rate, timing, and placement of crop nutrients. (15) Tropical plant health initiative Research and extension grants may be made under this section for the purposes of— (A) developing and disseminating science-based tools and treatments to combat plant pests and noxious weeds (as those terms are defined in section 403 of the Plant Protection Act ( 7 U.S.C. 7702 )) that impact tropical plants, including— (i) coffee plants; (ii) macadamia trees; (iii) cacao trees; (iv) plantains and bananas; (v) mangos; (vi) tropical floriculture and nursery crops; and (vii) any other tropical plant as determined by the Secretary; (B) establishing an areawide integrated pest management program in areas affected by, or areas at risk of being affected by, plant pests or noxious weeds; (C) surveying and collecting data on tropical plant production and health; (D) investigating tropical plant biology, immunology, ecology, genomics, and bioinformatics