Chemical and Biological Technologies in Agriculture

Table 4 Fertilizer efficiency index defined by [(dry matter production) × 100]/(added P to the soil)

From: Improving the short-term efficiency of rock phosphate-based fertilizers in pastures by using edaphic biostimulants

Treatments	RP			SSP			RP/Trp			RP/(HA–Trp)
Added P (mg kg⁻¹ soil)	10	30	50	10	30	50	10	30	50	10	30	50
Harvest
First	5.83	0.36	0.25	5.49	0.27	0.24	5.95	0.52	0.29	6.37	0.39	0.27
Second	18.37a	0.80c	0.48	21.56b	1.02d	0.71	19.58b	0.92d	0.51	22.53b	0.95d	0.65
Third	18.70a	0.73c	0.46d	19.73b	0.90d	0.69e	21.04b	0.77c	0.46d	23.29b	0.79c	0.60e

Data followed by the same lowercase letter in each row are not statistically different from each other (Fisher’s test, P < 0.05)

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