Aliyev Shavvoz Karimovich


Table - 3 Influence of potassium mineral fertilizer suspension in different norms on rust disease of autumn wheat



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01. Tuychiyev Iskandarbek Umaraliyevich

Table - 3
Influence of potassium mineral fertilizer suspension in different norms on rust disease of autumn wheat



Experiment versions

Baby tree thickness mln/ha

Calculated number of plants

Processed day

Average level of getting diseased

Number of diseased plants till the date of processing

In 15 days after processing

In 25 days after processing

1

Control

3,794

100

5 IV

57

68

83

2

N-200,
P2O5200 K2O
50 kg/ha

3,768

100

5 IV

44

28.5

31.7

3

N-200, P2O5200 K2O
75 kg/ha

3730

100

5 IV



47

11.3

19.4

4

N-200,
P2O5200 K2O
100 kg/ha

3,752

100

5 IV

43

2 6.7

27.4

As it is seen from the gven table (Table -4), suspension, prepared from mineral substances on April 5 for the 1st and 3rd repititions of the experiment on determination of fungicide resistance of mineral substances against disease causatives, was sprayed on the leaf surfaces of autumn wheat in the norms of 10.0 l/ha. In 10 days after this process, we started our observations on identifying the fungicide resistance of the suspension prepared from potassium mineral fertilizer against pathogens.


As it is known form the references, in the period between April 5 and April 15, the suspension did not show fungicide resistance against disease causatives, however, it increased the level of plant tolerance to diseases.
As a result, the plant had a peculiarity to defend itself. In 10 days after the suspension was sprayed the number of diseased plants decreased up to 35.7 pieces. In other versions this index decreased from 15.5 pieces to 16.3 pieces [11].
Concluding from it, we can say that by respraying the suspension prepared from potassium mineral fertilizer on leaves during the period of May 5-10 the tolerance of plants to rust diseases increased in the result of prolonging the life period of autumn wheat stems.

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