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Table 1 Effects of NPK, Azotobacter chroococcum, and Bacillus wiedmannii NRC211 on peanut plants cv. Giza 6 infested with Meloidogyne javanica under field conditions

From: Bio-fertilizers’ protocol for controlling root knot nematode Meloidogyne javanica infecting peanut fields

Treatments #Freq. of app ##Initial Pop J2/250 g soil after one month J2/250 g soil after two month ###Final pop./250 g soil % Red No. of galls/5 g roots % Red No of Egg masses/5 g roots % Red
NPK 1
2
3
477 a
476 a
475a
450 de
453 cd
414 ij
629 cd
577 e
557 ef
767 b
638 f
502 r
57.5
66.8
73.8
123 b
116 c
92.0 hi
62.6
64.7
72.0
77 b
68 d
59 gh
61.6
66.1
70.1
A z 1
2
3
474 a
475 a
478 a
475 bc
456 bc
447 de
625 cd
569 e
543 fg
671 e
566 j
430 r
64.9
70.5
77.7
113 c
103 e
100 ef
65.6
68.6
69.6
77 b
68 d
60 gh
61.6
66.2
70.1
Bw 1
2
3
475 a
476 a
476 a
462 bc
429 gh
443 ef
522 h
484 i
489 i
541 m
481 o
423 s
71.8
75.0
78.0
102 e
98.0 fg
90.0 ij
68.9
70.2
72.6
66 de
59 gh
51 jl
67.2
70.6
74.6
Az + Bw 1
2
3
476 a
474 a
475 a
423 hi
410 j
415 de
530 gh
450 j
440 j
556 l
448 p
373 t
93.0
93,6
94.8
94.0 h
82.0 L
69.0 m
71.4
75.0
79.0
58 gh
50 l
40 m
71.1
75.1
80.1
NPK + Az 1
2
3
477 a
473a
473a
469 bc
445 ef
434 fg
632 c
589 cd
624 cd
741 c
585 h
430 r
61.5
89.3
77.5
108 d
100 e
95.0 gh
67.1
69.6
71.1
69 d
64 ef
57 hi
65.6
68.1
71.6
NPK + Bw 1
2
3
472 a
478 a
479 a
477 b
454 bc
453 cd
652 b
621 cd
609 cd
704 d
631 g
581 i
63.0
67.3
69.9
108 d
101 ef
92.0 hi
67.1
69.3
72.2
73 c
64 ef
54 ij
63.6
68.1
73.1
NPK + Az + Bw 1
2
3
471 a
476 a
474 a
462 be
449 de
455 bc
631 c
613 cd
607 d
671 e
557 l
440 q
64.7
71.0
77.7
113 c
98.0 fg
88.0 j
65.6
70.2
73.2
77 b
61 fg
52 jl
64.6
69.6
74.6
Control 473 473 a 561 a 897 a 1911 a 329 a 201 a
  1. Each value represents mean of five replicates. Mean followed by the same letter (s) within a column is not significantly (P ≥ 0.05) different according to Duncan's multiple range test
  2. Az = Azotobacter chroococcum, (Nitrogen fixing bacteria) Bw = Bacillus wiedmannii NRC211
  3. NPK = Bacillus polymyxa, Bacillus megaterium, Bacillus circulance and Pseudomonas sp
  4. # Freq. of app. #Frequency of application 1- at planting, 2- at planting and after one month, 3- at planting and after two months
  5. ## Initial pop. = Initial population; ### Final pop. = Final population %Red. = Reduction