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Egyptian Journal of Biological Pest Control

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
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