Table 1. Presence of Lupinus mariae-josephae nodulating bacteria in “terra rossa” and red alkaline soils in Spain^†.

Origin of Soils (coordinates)	Plant Appearance	Nodulation				Soil Chemical Characteristics				Soil Type
		nodule number▵	Nodule color	pH	Ca*	Mg*	N#	P*	K*
Llombai plant patch	green	3.6±0.5	red	7.98	7,720	120	3.8	7.7	310	terra rossa
(39.3189373°, −000.5639983°)
Xàtiva plant patch	green	3.5±0.4	red	8.17	6,880	110	2.2	<5	170	terra rossa
(38.9488459°, −000.5305723°)
Outside Llombai plant patch	yellow/green	1.3±0.4	reddish	7.65	6,120	110	3.0	<5	320	terra rossa
(39.3189373°, −000.5639983°)▾
Outside Xàtiva plant patch	yellow	0	-	7.47	2,960	90	1.2	<5	190	terra rossa
(38.9488459°, −000.5305723°)▾
Field trial site	yellow/green	1.5±0.5	reddish	7.98	6,840	200	3.2	5.9	680	terra rossa
(39.2918111°, −000.6591528°)
Mallorca 4	yellow	0	-	8.36	6,990	480	1.1	<5	1150	terra rossa
(39.3582222°, 002.8224722°)
Mallorca 6	yellow	0	-	9.09	5,600	1180	1.4	<5	1690	terra rossa
(39.3635833°, 002.8902222°)
Pozuelo del Rey	yellow	0	-	7.9	5,550	60	0.1	<5	190	terra rossa
(40.3728306°, −003.3259472°)
Aldeanueva de la Serrezuela	yellow	0	-	7.49	2,750	110	0.1	<5	150	terra rossa
(41.4569722°, −003.7812083°)
Fresno de la Fuente	yellow	0	-	7.86	6,930	200	0.1	<5	790	terra rossa
(41.3937444°, −003.6442917°)
Alcala de Guadaira	yellow	0	-	7.95	5,030	130	0.1	8.3	490	terra rossa
(37.3270278°, −005.7963333°)
La Luisiana	yellow	0	-	8.09	7,650	260	0.1	27	1240	red
(37.5248333°, −005.4024167°)
Calzadilla de los Barros	yellow	0	-	7.87	7,260	200	0.1	<5	460	red
(38.3488556°, −006.3217944°)

^†Symbiotic bacteria were screened using Lmj trap-plants in sterile Leonard jar units employing 50 g of soil per jar and 8 jars (16 plants) per soil (see Materials and Methods).

^▵Average of nodules per Leonard jar ± standard error.

* Expressed in mg.kg⁻¹.

^#Expressed in g. kg⁻¹.

^▾200 meters outside the plant patch.