Sample NP conc. nominal rhizobia inoculation root length [cm] shoot length [cm] nodules root weight [g] shoot weight [g] Atom15N Percent N altitude root mu root 1 P25 18 yes 6.2 1 3 0.0036 0.0059 1.38734 0.559 11 22 2 P25 18 yes 7.7 1 2 0.0044 0.0086 1.88371 0.575 21 25 3 P25 18 yes 6.9 1 2 0.0034 0.0046 2.02913 0.643 15 24 4 P25 18 yes 7.4 1.5 3 0.0056 0.0088 16 21 5 P25 18 yes 8.9 1.2 2 0.0052 0.006 1.40794 0.695 14 23 6 P25 18 yes 6.5 0.7 1 0.0039 0.0039 7 P25 9 yes 7.4 1.4 1 0.005 0.0058 1.82439 0.776 19 21 8 P25 9 yes 10.7 1.8 1 0.0057 0.0093 2.06971 0.658 13 16 9 P25 9 yes 8 2.3 7 0.0043 0.0047 2.28654 0.802 16 24 10 P25 9 yes 6 2 8 0.0057 0.0078 20 23 11 P25 9 yes 7.2 1.2 5 0.0041 0.0041 17 23 12 P25 9 yes 7.6 1.5 4 0.0038 0.0059 1.98536 0.594 9 12 13 E171 19 yes 7.9 2 4 0.003 0.0067 0.94163 0.646 14 14 14 E171 19 yes 8 1.1 2 0.0062 0.0066 18 21 15 E171 19 yes 6.8 1.2 9 0.0057 0.0084 1.29425 0.513 16 24 16 E171 19 yes 6.7 1 0 0.003 0.0051 1.4284 0.714 12 12 17 E171 19 yes 6.9 0.8 0 0.0032 0.005 13 16 18 E171 19 yes 7.8 1.5 1 0.0035 0.005 1.47946 0.738 15 15 19 E171 9.5 yes 6.1 1.2 10 0.0032 0.0035 14 16 20 E171 9.5 yes 7.5 1.1 2 0.0039 0.0035 1.69671 0.669 16 16 21 E171 9.5 yes 7 1.2 3 0.0041 0.0055 18 18 22 E171 9.5 yes 7.9 1.5 5 0.0062 0.0085 1.62573 0.665 15 16 23 E171 9.5 yes 6 1.3 8 0.0048 0.0062 2.09078 0.658 17 17 24 E171 9.5 yes 8.9 1.2 24 0.0034 0.0065 20 24 25 Bulk 19 yes 6.9 2 0 0.0066 0.0094 2.26512 0.497 19 24 26 Bulk 19 yes 5.8 2.2 4 0.005 0.0078 1.53009 0.587 19 24 27 Bulk 19 yes 8.6 1.5 0 0.0033 0.0056 1.3504 0.762 15 16 28 Bulk 19 yes 6.9 1 1 0.0038 0.0051 1.27678 0.625 12 12 29 Bulk 19 yes 8.5 1.6 3 0.0058 0.0091 1.67017 0.659 14 16 30 Bulk 19 yes 8.3 1.1 0 0.0041 0.0061 12 20 31 Bulk 9.5 yes 7.9 1 0 0.0043 0.0051 1.95227 0.737 15 25 32 Bulk 9.5 yes 9.2 2.2 4 0.0053 0.0069 2.18162 0.558 16 20 33 Bulk 9.5 yes 5.7 2.1 4 0.0035 0.0107 1.35207 0.992 10 10 34 Bulk 9.5 yes 8.4 2.1 2 0.0093 0.0111 2.25654 0.609 14 17 35 Bulk 9.5 yes 7.8 1.2 0 0.001 0.008 22 27 36 Bulk 9.5 yes 7.5 1.2 1 0.0041 0.0055 19 28 37 ZnSO4 16 yes 5.2 1.6 2 0.0029 0.0072 2.73131 1.79 13 19 38 ZnSO4 16 yes 6 1.1 0 0.0033 0.0064 1.75481 1.347 19 19 39 ZnSO4 16 yes 4.2 0.7 2 0.0013 0.0057 4 4 40 ZnSO4 16 yes 6.1 1.8 1 0.0019 0.0077 9 15 41 ZnSO4 16 yes 5.2 1.5 0 0.0025 0.004 5 7 42 ZnSO4 16 yes 6.3 1 0 0.0011 0.0037 9 9 43 Control 0 yes 12.6 3 5 0.0093 0.0124 3.72488 0.952 18 29 44 Control 0 yes 10.3 2.1 2 0.0072 0.0118 3.62536 1.072 14 19 45 Control 0 yes 11.4 2.5 6 0.0099 0.0164 3.0296 0.779 19 25 46 Control 0 yes 9.7 3.5 3 0.0065 0.0101 3.61531 1.335 20 21 47 Control 0 yes 12.4 2.6 2 0.0057 0.0107 3.50953 1.017 14 18 48 Control 0 yes 9.5 3 2 0.0052 0.0087 2.75124 0.871 21 32 49 P25 18 no 8.2 1 0 0.0051 0.005 1.23993 0.752 18 18 50 P25 18 no 7.3 1.4 1 0.0018 0.0061 11 14 51 P25 18 no 8.5 1.1 1 0.0041 0.0042 16 16 52 P25 18 no 8.6 1.5 2 0.0031 0.009 1.16448 0.559 9 12 53 P25 18 no 6.3 1 0 0.0034 0.005 12 17 54 P25 18 no 7.9 1.2 1 0.0033 0.0091 2.00006 0.613 13 18 55 P25 9 no 7.5 1.2 2 0.0042 0.0078 1.76478 0.687 17 17 56 P25 9 no 8.1 1.6 0 0.0044 0.0082 20 29 57 P25 9 no 9.4 1.5 2 0.0029 0.0046 1.44433 0.614 12 12 58 P25 9 no 6.9 1.6 11 0.0042 0.006 21 23 59 P25 9 no 6.7 1.2 2 0.0034 0.0066 1.24493 0.683 9 9 60 P25 9 no 8.5 1.5 8 0.0028 0.007 1.13119 0.852 19 22 61 E171 19 no 9.1 1.5 0 0.0055 0.009 1.63113 0.524 14 16 62 E171 19 no 7.4 1.5 1 0.0045 0.0054 1.06364 0.603 13 16 63 E171 19 no 8.2 1.2 0 0.0041 0.0059 0.97394 0.679 26 31 64 E171 19 no 8.1 1.5 0 0.0045 0.0085 1.37239 0.656 15 18 65 E171 19 no 5.9 0.7 1 0.001 0.0059 11 14 66 E171 9.5 no 8.3 1.2 6 0.0034 0.0067 1.59371 0.481 13 17 67 E171 9.5 no 8.2 1.4 1 0.0048 0.0101 15 17 68 E171 9.5 no 7.8 1.2 2 0.0029 0.0054 14 15 69 E171 9.5 no 10.2 2.4 3 0.0055 0.0085 1.77124 0.68 19 23 70 E171 9.5 no 8.8 1 0 0.0031 0.0066 1.09021 0.535 13 13 71 E171 9.5 no 7.5 1.3 6 0.0032 0.0063 1.40681 0.669 15 20 72 Bulk 19 no 10.2 1.3 2 0.0032 0.0038 1.87935 0.697 12 13 73 Bulk 19 no 8.6 1.8 0 0.0027 0.0074 1.32621 0.661 11 20 74 Bulk 19 no 7.9 1 0 0.0029 0.0081 0.62887 0.588 10 10 75 Bulk 19 no 8.2 1 0 0.0059 0.0056 0.79337 0.737 16 16 76 Bulk 19 no 9 1.6 1 0.005 0.0096 15 15 77 Bulk 19 no 8.1 1 1 0.0012 0.0041 13 13 78 Bulk 9.5 no 6.7 1 1 0.0039 0.0048 1.0188 0.613 20 20 79 Bulk 9.5 no 8.6 1.1 0 0.0033 0.0084 12 13 80 Bulk 9.5 no 6.9 1.2 6 0.0021 0.006 1.23272 0.646 81 Bulk 9.5 no 7 1.5 5 0.0048 0.0123 22 30 82 Bulk 9.5 no 6.9 1.2 1 0.0022 0.005 18 22 83 Bulk 9.5 no 9.2 1.2 7 0.0037 0.005 12 12 84 ZnSO4 16 no 7.6 2 0 0.0015 0.0048 1.96377 1.051 14 16 85 ZnSO4 16 no 8 1.4 0 0.0026 0.0044 11 18 86 ZnSO4 16 no 8.8 1.1 0 0.0026 0.0057 9 9 87 ZnSO4 16 no 7 1 0 0.0011 0.0038 1.01237 0.859 9 9 88 ZnSO4 16 no 6.8 1 0 0.0019 0.0053 8 8 89 ZnSO4 16 no 7.2 1.8 0 0.002 0.0085 1.4195 1.011 21 25 90 Control 0 no 11 3.4 2 0.004 0.0103 3.41354 1.139 16 16 91 Control 0 no 8.5 2.4 0 0.0058 0.0088 3.30272 1.461 18 32 92 Control 0 no 11.8 3.2 0 0.0073 0.0092 3.57413 1.34 11 11 93 Control 0 no 12 3.1 0 0.006 0.0135 3.12662 0.906 17 17 94 Control 0 no 7 2.1 0 0.0047 0.0077 2.39963 0.906 15 17 95 Control 0 no 10.6 2.6 0 0.0057 0.0112 2.64415 1.016 17 19