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14 декабря, 2021
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The experiment of cultivating eggplants with biogas residue fibre film
In order to test the performance differences among the three kinds of biogas residue fibre mulch, black biodegradable mulching added in activated carbon, plastic film and control (without mulching), to cultivate eggplant, a comparative field test through the multiple comparisons for the soil moisture content, soil temperature, weed growth amount and eggplant yield was employed. Performance index of the treatments was shown in table4- 1.
4.1 
Effect of different treatments on the weed amount
 |
 |
 |
The effect scene of different treatments on the weed amount in the case of cultivating eggplant was shown in Fig.4-1. Weed amount of mulching was markedly less than the control, and weed amount of plastic film was more than biogas residue films. In the period of observation, weeds were flourished under the plastic film or even broke plastic mulch. Weeds mainly grew from transplanted hole and rupture to all the treatments, and making the film rupture expands.
Fig. 4-1. The effect scene of different treatments on the weed amount in the case of cultivating eggplant
The measured results of total weeds of each treatment were shown in table 4-2.
|
Weed amount (g)
Table 4-3. Analysis of variance of the weed amount |
There were significant differences among the treatments, according to analysis of the multiple comparisons among treatments, seeing table 4-4.
Mean difference (g)
LSD
|
A |
80.66 |
340.23** |
240.85** |
4.27 |
11.65 |
5.67 |
108 |
154 |
|
B |
74.99 |
345.9** |
246.52** |
1.4 |
5.98 |
|||
|
C |
69.01 |
351.88** |
252.5** |
7.38 |
||||
|
D |
76.39 |
344.5** |
245.12** |
|||||
|
E |
321.51 |
99.38 |
||||||
|
F |
420.89 |
|
У i |
|
Уі — Ур Уі — Уе Уі — У А Уі — yd Уі — УI |
|
LSD 0.01 |
|
Notes: У і was mean of the і treatment; LSD0.05 and LSDamwas significant at 0.05, not significant at 0.01. Table 4-4. Multiple comparisons of the weed amount among treatments |
The results showed that there were significant differences between three kinds of biogas residue fibre film, black film and plastic film, control; there were significant differences between three kinds of biogas residue fibre films and black film. Weed amount of A biogas residue fibre film decreased 81% as compared with control, and decreased 75% as compared with the plastic film; weed amount of B biogas residue fibre film decreased 82% as
compared with control, and decreased 77% as compared with the plastic film; weed growth amount of C biogas residue fibre film decreased 84% as compared with control, and decreased 79%as compared with the plastic film. From this, three kinds of residue fibre films had significant effect of suppressing weeds.