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Table 2 Effects of NPK, Azotobacter chroococcum and Bacillus wiedmannii NRC211 on peanut plant growth parameters 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 Plant Fresh weight (g) %Inc Plant dry weight (g) %Inc No. of pods/plant %Inc Pods weight/plant (g) %Inc weight of 200 seeds (g) %Change Yield/ton/Feddan %Inc Oil content g/kg
NPK 1
2
3
252 f
351 d
386 d
73.7
142.0
166.2
61.0 n
126 a
134 d
110.3
334.4
362.0
32 j
56 g
63 de
39.1
143.4
173.9
167 j
500 b
591 a
234.0
900.0
1082.0
220 o
290 g
365 b

31.8
65.9
7.0 hi
14.9 c
23.7 a
117.4
363.0
634.8
41.6
37.8
38.8
Az 1
2
3
260 f
340 d
380 c
79.3
134.4
162.0
69.0 m
85.0 i
155 b
137.9
193.1
434.4
52 h
67 ef
82 a
126.0
191.3
256.5
121 n
205 hi
255 f
142.0
310.0
410.0
182 q
243 m
297 f
 − 17.2
10.4
35.0
4.5 im
8.5 gh
13.9 cd
39.1
165.2
330.4
43.3
39.6
35.9
Bw 1
2
3
210 g
270 f
317 e
44.8
86.2
118.6
54.0 o
76.0 l
94.0 h
86.2
162.0
224.1
60 f
66 cd
77 b
160.9
186.9
234.7
166 j
215 h
257 f
232.0
330.0
414.0
226 n
263 j
310 d
2.7
19.5
40.9
4.5 im
6.7 hi
12.0 cd
39.1
108.7
273.9
42.1
38.1
37.5
Az + Bw 1
2
3
201 g
363 f
314 e
38.6
81.3
116.5
43.0 p
81.0 j
113 f
48.2
179.3
289.6
40 i
54 gh
64 de
73.9
134.7
178.2
127 mn
155 i
196 i
154.0
210.0
292.0
165 r
182 q
266 j
 − 25.0
 − 17.2
20.9
8.6 gh
11.1 de
14.4 cd
167.4
245.7
345.7
44.7
46.1
40.9
NPK + Az 1
2
3
146 h
313 e
402 b
0.68
115.8
177.2
33.0 g
74.0 l
102 g
13.8
155.1
251.7
33 j
69 c
82 a
43.4
200.0
256.5
137 lm
262 f
399 c
174.0
424.0
698.0
251 L
280 h
380 a
14.0
27.2
72.7
9.1 fg
12.7 cd
22.8 a
182.6
293.5
608.7
40.7
45.5
47.4
NPK + Bw 1
2
3
261 f
297 e
408 b
80.0
104.8
181.3
52.0 o
83.0 ig
142.0 c
79.3
186.2
389.6
37 i
52 h
62 ef
60.8
126.0
169.5
122 n
232 g
302 e
164.0
364.0
504.0
252 L
287 g
325 c
14.5
30.4
47.7
5.3 jl
8.5 gh
12.3 cd
63.0
165.2
282.6
42.4
43.5
47.3
NPK + Az + Bw 1
2
3
316 e
413 b
499 a
117.9
184.8
244.1
74 l
91.0 h
161 a
155.1
213.7
455.1
39 i
62 ef
74 b
69.5
169.0
221.9
144 L
199 i
350 d
188.0
298.0
600.0
195 p
270 i
301 e
 − 11.3
22.7
36.8
5.7 ij
9.6 ef
19.3 b
76.1
197.8
494.8
43.3
43.6
40.7
Control   145 h 29 r 23 l 500 220 o 3.2 m 39.8
  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. % Inc. % increase; Az, Azotobacter chroococcum (nitrogen fixing bacteria); Bw (Bacillus wieidmannii 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