Volume 02 Issue 10-2022
16
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
10
Pages:
16-19
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
The observations gave the following results, it is known that the number of seedlings per unit area is more or less, the
number of ribbons in the tape and the distance between plants in the tape is short (5 cm) or wide (10 cm) caused the
error amount to vary. The reason for the decrease in productivity from the small feeding area to the large feeding area
was directly related to the number of plants per unit area. If onion sprouts are planted in a two- and three-row tape
method, the amount of onion heads in the crop is 92,1% to 93,8%; It was found to be in the range of 86,4 percent to
89,9 percent. Among the studied planting schemes, the highest and highest-quality yield per hectare was obtained
from options planted in three rows, the distance between strips was 15 cm, and seedlings were planted in the strip at
a distance of 5 and 7,5 cm (44,8; 38,7 t/ha).
KEYWORDS
Onion, variety, seed, plant, planting scheme, harvest, care.
INTRODUCTION
In terms of cultivated area and gross yield, onion ranks
second after tomato as one of the main vegetables
grown in our republic. Not only the people of the
republic and the processing enterprise are provided
with the onion harvest, but also a part of its products
is exported. One of the important resources for
increasing the gross yield of onion is to grow onion
seedlings as a repeated crop on the land freed from
spiky crops and fairy vegetables.
Research Article
THE BEST PLANTING SCHEME FOR GROWING ONIONS AS A REPEATED
CROP - DETERMINING THE FEEDING AREA
Submission Date:
October 01, 2022,
Accepted Date:
October 05, 2022,
Published Date:
October 12, 2022
Crossref doi
https://doi.org/10.37547/ajahi/Volume02Issue10-04
Mirzasoliev Mirzaosimjon Mirzasoypovich
Ph.D., Research Institute Of Vegetable, Melon Crops And Potato. Tashkent, Uzbekistan
Journal
Website:
https://theusajournals.
com/index.php/ajahi
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 02 Issue 10-2022
17
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
10
Pages:
16-19
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
The purpose of the experiment is to determine the
optimal planting area and feeding area when growing
onion from seedlings as a repeated crop, save seed
consumption by 2-3 times and water consumption by 1-
1,5 times, and get twice the harvest from the same land
during the season.
Research work was carried out in the months of June-
October 2015-2016 in the area of the scientific
educational experimental station of TashSAU.
n the experiment, the onion variety "Istiqbol" was
planted based on the current methodical manuals,
each planting scheme was 3 meters long in 9 different
schemes: ( (50+20)/2×5; (50+20)/2× 7,5 ; (50+20)/2×10;
(40+15+15)/3×5; (40+15+15)/3×7,5;(40+15+15)/3×10;
(40+10+10+10)/4×5;
(40+10+10+10)/4×7,5;
(40+10+10+10)/4×10) in 2 rows with 20, 15, 10 cm
between the ribbons on the ribbon, 5 between the
plants on the ribbon; 7,5 and 10 cm were planted. The
experiment had 4 replications, the plants to be
considered were placed in a plot of 4,2 m2 in each
replication. The number of plants in the strip varied
from 60 to 120 according to the planting scheme.
Onion seedlings were planted in a small area (40 m2)
from the edge of the planting area in the second
decade of March in a scheme of 4x1 cm, and 50-55-day-
old seedlings were planted in their permanent place in
the first decade of June according to the schemes
indicated above.
According to these planting schemes, the number of
seedlings per hectare ranged from 285,7 to 1142,8.
Phenological, biometric and other observations were
carried out on the experimental site according to the
approved plan (since this issue has not been studied
before, the average of all parameters of the planting
schemes was used as a control).
The observations gave the following results, it was
found that the number of seedlings per unit area was
more or less, and the number of ribbons in the tape and
the distance between the plants in the tape was short
(5 cm) or wide (10 cm) caused the amount of error to
vary. In the first variant of the experiment, when the
spacing between the ribbons was 20 cm and the
distance between the seedlings in the ribbon was 5 cm,
the error rate was 6,8 percent after 10 days after
planting, and in the variants planted with a distance of
7,5 and 10 cm, it was 6 and 5,2 percent. In the three-row
tape method, the error rate was found to be 6,1 out of
8,7 percent when the distance between the tapes was
10 cm and 5 cm, 7,5 and 10 cm were left between the
seedlings in the tape. It was found that when onion
seedlings are planted in a 4-row ribbon method, the
error rate is 10,9% to 8,8%. It was found that increasing
or decreasing the number of ribbons in the ribbon and
increasing the distance between plants in the ribbon
from 5 cm to 10 cm have different effects on the
viability of onion plants. That is, if onion seedlings were
planted in a feeding area of 0,0175 m2, 22,4 percent of
the seedlings died during the growing period (before
the leaves turn yellow), or 6,8 percent of the plants did
not take root after 10 days of planting. It was found
that it increased by 15,6 percent. During this period, the
number of dead seedlings was 128000 per hectare. In
this option, when the distance between the plants on
the tape was increased to 7,5 and 10 cm, it was found
that the amount of error was reduced by 2,3 and 6,5
percent compared to planting at a distance of 5 cm.
This pattern was maintained in subsequent cropping
schemes. As the feeding areas of onion seedlings
changed from large (0,0175 m2) to small (0,00875 m2),
the period of entering the stage of yellowing of the
leaves of onion plants was accelerated to a certain
extent. That is, it was found out that the leaves of
onion seedlings planted in 0,0175 m2 of nutrition area
start to turn yellow after 108 days, and those planted
Volume 02 Issue 10-2022
18
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
10
Pages:
16-19
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
in 0,035 m2 of nutrition area begin to turn yellow after
114 days. In the experiment, the yellowing of the leaves
of seedlings planted in a three-row tape method was
observed on days 106-115 according to the change of
the distance between the plants in the tapes (5...10
cm). It was found that this indicator occurs on days
96..101 in seedlings sown in a four-row tape method.
Planting scheme and feeding area had an effect on the
number, length and yield of true leaves formed on each
bush, as well as on the quality of the crop (table - 1).
From the figures presented in Table 1, it is known that
among the tested planting schemes, in almost all of
them, the number of plant leaves is large and relatively
long in the variants planted leaving 7,5 and 10 cm
between the plants in the ribbon. The average number
of leaves per bush of onion seedlings planted in a two-
row tape method is 1,4 and 1,2 when planted at a
distance of 7,5 and 10 cm, and 0.7...1,4 in three rows,
compared to when seedlings in a tape are planted at a
distance of 5 cm. it was determined that there is a lot
of yield per grain. In the variant of the experiment
planted in a four-row tape method, the number of
leaves of seedlings was significantly less (7.9...8.1
pieces) according to the distance between the
seedlings in the tape. Planting pattern also affected the
length of leaves produced per plant. In the tested
planting schemes, the length of the leaves of the
variant plants planted in four rows (regardless of
whether the distance between plants in the strip was
large or small) was significantly shorter than the length
of the leaves of seedlings planted in two and three
rows. The number of leaves produced in each bush,
their length and the large or small size of the feeding
area also affected the onion yield and flour quality.
31,5 t/ha when planted in a 0,0175 m2 feeding area in a
two-layer tape method, 5 cm between plants in the
tape, 1,7 and 7,7 t/ha higher yield than when planted
with 7,5 and 10 cm distance between seedlings it was
found that the yield was 2,1 t/ha less than the control.
Even when planting in a three- and four-row tape
method, the law of planting in a two-row tape method
was preserved in terms of productivity. That is, when
the distance between the plants in the tape was
increased from 5 cm to 10 cm, and the feeding area was
increased from 0,01166 m2 to 0,0233 m2, it was found
that the yield decreased from 44,8 t/ha to 31,7 t/ha.
The reason for the decrease in productivity from the
small feeding area to the large feeding area was
directly related to the number of plants per unit area.
If onion sprouts are planted in a two- and three-row
tape method, the amount of onion heads in the crop is
92,1% to 93,8%; It was found to be in the range of 86,4
percent to 89,9 percent. The average weight of onion
heads was 71.0...90.0 g in the first three variants of the
experiment, and 69,0...91,0 g in the second three
variants.
The productivity of the four-row planting scheme
ranged from 41,5 t/ha to 29,4 t/ha depending on the
area of seedling nutrition (0,00875...0,0175 m2).
However, the yield did not exceed 86,8 percent, and
the average weight of onion heads was found to be
between 54,0 and 69,0 g.
Among the studied planting schemes, the highest and
quality crop per hectare is three rows, the distance
between the strips is 15 cm, and the number of
seedlings in the strip is 5; (44.8; 38,7 t/ha) were
obtained from variants planted at a spacing of 7,5 cm.
The average weight of the onion heads in the harvest
of these options is 72; It was in the range of 81 gr.
Conclusion. So, when growing Istikbol varieties of
onion
as a repeated crop from seedlings
(40+15+15)/3×5 cm and the distance between plants in
Volume 02 Issue 10-2022
19
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
10
Pages:
16-19
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
the strip is 7,5 cm, the highest quality yield (44.8; 38,7
t) per hectare is obtained.
REFERENCES
1.
Metodika polevogo opyta./ B.A. Dospekhov // -M.,
1985
–
351 p.
2.
Progressive technologies for growing vegetable
crops in the open. Kh. Boriev, V. Zuev, O.
Kadirkhojaev, M. Mahmudov - Tashkent 2002. b.
238-240.
3.
Determination of the most convenient planting
scheme for growing onions from seedlings as a
repeated crop - feeding area. Collection of
materials of the 1st scientific-practical conference
"Integration of science, education and production
in the sustainable development of the agricultural
sector". May 30-31, 2017.
