Nanophosphorus Fertilizer Stimulates Growth and Photosynthetic Activity and Improves P Status in Rice

Table 2

Total dry biomass and dry shoot/root biomass ratio of rice plants cultivar Morelos A-2010 treated for 14 d with different sources and concentrations of P.

Treatment	Total dry biomass (g)	Dry shoot/root biomass ratio
1	^a	^a
2	^a	^a
3	^a	^a
4	^a	^a
5	^a	^a
6	^a	^a
7	^a	^a
8	^a	^a

with different letters in each column are statistically different (LSD, ; ). Treatments: 1 = distilled water; 2 = type A gel; 3 = 50% [P]_{Yoshida solution} from KH₂PO₄; 4 = 100% [P]_{Yoshida solution} from KH₂PO₄; 5 = 50% [P]_{Yoshida solution} from nano-KH₂PO₄; 6 = 100% [P]_{Yoshida solution} from nano-KH₂PO₄; 7 = 50% [P]_{Yoshida solution} from nano-KH₂PO₄ with trypsin (0.1 mg L^-1); 8 = 100% [P]_{Yoshida solution} from nano-KH₂PO₄ with trypsin (0.2 mg L^-1).