Aliyev Shavvoz Karimovich


Table - 5 Impact of potassium mineral fertilizerof different norms on fruitfulness of autumn wheat, c/ha



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01. Tuychiyev Iskandarbek Umaraliyevich

Table - 5
Impact of potassium mineral fertilizerof different norms on fruitfulness of autumn wheat, c/ha

Experiment versions

Repetitions

Average crop gained from repetitions c/ha

Additional crop due to the control version c/ha

I

II

III

IV

Control

41.3

40.9

38.7

38.1

39.7

-

N-200, P2O5-200 K2O-50 kg/ga

42.6



44.6

43.9


44.3

43.8

4.1

N-200, P2O5-200 K2O -75 kg/ga

46.8

47.7

47.8

48.2

47.8

8.1

N-200, P2O5200 K2O-100 kg/ga

4.9

43.2

47.1

45.5

45.1

5.4

The experiments show that, the life period of plants may be prolonged to
8-10 days due to the fact that potassium mineral fertilizers increase the tolerance of plants towards fungicides and fungicides decrease pathogenic features. Along with it we can have an opportunity to get rich harvest. The most harvest from the wheat was gained in the 3rd version - 43.8c/ha, the least harvest was gained in the control version. The difference between them was equal to 8.1 c/ha and this index composed 4c/ha index relatively to the etalon version.
In conclusion, we consider that in getting rich harvest from autumn wheat all measures should not be carried unilaterally but by nurtifying the plant stems additionally too.
Owing to giving additional 15-20 kg/ha more nutrition than in the norms to autumn wheat stems, we can observe the increase of their tolerance peculiarity and it will result in passing to the budding phase 2-3 days earlier than the stems of the control version.
Additional nutrition given to the stems of autumn wheat causes renovation in them and it will not only influence the increase of plant tolerance to rust disease but also brings into the increase of fruitfulness up to 8.1c/ha.

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