Evaluation of Animal Dungs and Organomineral Fertilizer for the Control of Meloidogyne incognita on Sweet Potato
Table 1
Comparative effects of different organic materials and carbofuran on the means of gall index and Meloidogyne incognita reproduction on sweet potato.
Treatments
Gall index
population in 200 mL soil (×500)
Root egg population/100 g root (×1000)
1st trial
2nd trial
1st trial
2nd trial
1st trial
2nd trial
Poultry manure 10 t/ha
1.6e
1.6de
1.9bcd
2.0bc
39.9cde
41.9def
Poultry manure 20 t/ha
1.0f
1.1de
1.6cd
1.7cd
30.9de
30.7ef
Goat manure 10 t/ha
1.9cde
1.9bcd
2.6bc
3.0b
51.7bcd
53.1cd
Goat manure 20 t/ha
1.7de
1.8cd
2.3bcd
2.4bc
41.6cde
49.6de
Cow manure 10 t/ha
2.3bc
2.6bc
3.3b
3.3b
58.0bc
57.3bc
Cow manure 20 t/ha
1.7de
1.7de
3.0bc
3.1b
44.3cd
51.9cd
Horse manure 10 t/ha
2.7b
2.9b
3.4b
3.6b
68.3b
68.9b
Horse manure 20 t/ha
2.0cde
2.1bcd
3.1bc
3.4b
57.1bc
55.4bc
Organomineral fertilizer 2 t/ha
2.3bc
2.5bc
3.4b
3.4b
68.6b
70.0b
Organomineral fertilizer 4 t/ha
2.1cd
2.1bcd
3.0bc
3.1b
57.3bc
56.7bc
Carbofuran 3 kgai/ha
0.4f
0.5e
0.7d
0.8d
20.1e
16.3f
Unamended soil
4.0a
4.0a
13.0a
13.4a
199.9a
207.3a
0 equals no gall; 1 equals 1–20% of the root system galled; 2 equals 21–40% of the root system galled; 3 equals 41–60% of the root system galled; 4 equals 61–80% of the root system galled; and 5 equals 81–100% of the root system galled. Means followed by the same letter in the same column are not significantly different according to Duncan’s Multiple Range Test (). Each value is a mean of seven replicates.
