Table 4 Balanced nutrient uptake requirements, internal efficiencies (IE, kg fleshy root per kg nutrient), and the reciprocal internal efficiencies (RIE, kg nutrient per 1000 kg fleshy root) of N, P, and K simulated by the QUEFTS model to achieve specific radish fleshy root yield targets and a potential yield of 120 t ha⁻¹.

Yield (kg ha⁻¹)	Required nutrient uptake (kg ha⁻¹)			Internal efficiency (kg kg⁻¹)			Reciprocal internal efficiency (kg t⁻¹)
Yield (kg ha⁻¹)	N	P	K	N	P	K	N	P	K
0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
6000	12.9	2.7	15.5	465.1	2222.2	387.1	2.15	0.45	2.58
12000	25.8	5.4	31.0	465.1	2222.2	387.1	2.15	0.45	2.58
18000	38.7	8.1	46.5	465.1	2222.2	387.1	2.15	0.45	2.58
24000	51.6	10.8	62.0	465.1	2222.2	387.1	2.15	0.45	2.58
30000	64.5	13.5	77.5	465.1	2222.2	387.1	2.15	0.45	2.58
36000	77.4	16.2	93.0	465.1	2222.2	387.1	2.15	0.45	2.58
42000	90.3	18.9	108.5	465.1	2222.2	387.1	2.15	0.45	2.58
48000	103.2	21.6	124.0	465.1	2222.2	387.1	2.15	0.45	2.58
54000	116.1	24.3	139.5	465.1	2222.2	387.1	2.15	0.45	2.58
60000	129.0	27.0	155.0	465.1	2222.2	387.1	2.15	0.45	2.58
66000	143.9	29.7	172.4	458.7	2222.2	382.8	2.18	0.45	2.61
72000	161.2	33.2	193.2	446.7	2168.7	372.7	2.24	0.46	2.68
78000	179.8	37.1	215.5	433.8	2102.4	361.9	2.31	0.48	2.76
84000	200.0	41.2	239.7	420.0	2038.8	350.4	2.38	0.49	2.85
90000	222.3	45.8	266.5	404.9	1965.1	337.7	2.47	0.51	2.96
96000	247.5	51.0	296.6	387.9	1882.4	323.7	2.58	0.53	3.09
102000	276.7	57.0	331.7	368.6	1789.5	307.5	2.71	0.56	3.25
108000	312.7	64.4	374.7	345.4	1677.0	288.2	2.90	0.60	3.47
114000	362.4	74.7	434.4	314.6	1526.1	262.4	3.18	0.66	3.81
120000	441.9	86.9	490.3	271.6	1380.9	244.7	3.68	0.72	4.09

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