IMPACT OF SOWING DATES AND FERTILIZER RATES ON YIELD
AND GRAIN QUALITY OF INTENSIVE TRITICUM DURUM WHEAT
VARIETIES IN IRRIGATED LANDS
Rakhimov Аbdulla Rustamovich,
PhD
rahimovabdullo@gmail.com
Samarkand state university
Annotation.
The article provides an analysis of data on the effect of fertilizer
standards applied to the winter sowing period of durum wheat varieties (Makuz-3
and Krupinka) included in the State Register of the Republic of Uzbekistan on the
winter hardiness of plants.
In the conditions of typical irrigated gray soils of Samarkand region, it is
scientifically justified to use mineral fertilizers N
210
P
l47
K
l05
kg / ha when sowing
hard wheat "Krupinka" in the first ten days of October, and N
180
P
l26
K
90
kg / ha
when sowing "Makuz-3" in the second ten days of October.
Keywords:
durum
wheat,
«Makuz-3»,
«Krupinka»,
sowing
time,
fertilization rate, winter and frost resistance, accumulation joint, sugar content,
grain yield.
Introduction.
Today, the steady growth of the world's population is important
in meeting the growing demand of mankind for food and agricultural products, as
well as improving the yield and quality of cereals, including wheat. According to
the analytical agency of the International Grains Council (IGC), the production of
durum wheat worldwide is estimated at 37-40 million tons. tons, which is about 5
percent of the total amount of wheat grown.
It is known that in various ecological conditions of the world, scientific
research is carried out in priority areas, such as increasing grain yield and quality
through the use of agro-technologies for the cultivation of wheat varieties in
accordance with their biology. In irrigated lands, taking into account the climatic
conditions of the region, sowing of durum wheat varieties in optimal terms and
obtaining high and quality grain yields from them by choosing the right norms of
mineral fertilizers is achieved. One of the urgent tasks is to plant rare autumn
varieties of durum wheat (Triticum durum Desf.) On irrigated lands in a timely
manner and to select and implement the correct application of mineral fertilizers
[6].
Although sowing times are one of the main agro-technological measures in
obtaining high-quality grain from durum wheat on irrigated lands, feeding plants
with mineral fertilizers plays a key role in obtaining additional grain yields and
improving and improving its quality.
In particular, due to the demand of the plant, the correct distribution of
mineral fertilizers in the developmental stages, along with increasing grain yield
and its quality in grain, also increases the efficiency of mineral fertilizers used [5].