Abstract
The aim of the research was to study the effectiveness of an application of increasing doses of potash fertilizers in the potatoes cultivation of the middle-early ripeness group of Gala variety on the background of the use of nitrogen-phosphorus fertilizers and sulfur in the dose of N90Р120S30. Studies were carried out in 2016-2018. The soil of the experimental site of gray forest medium loamy granulometric composition had the following agrochemical characteristics: pH of salt extract - 5.4-5.7; humus content - 3.28-3.41%; easily hydrolyzed nitrogen - 146-160 mg per kg; mobile phosphorus - 140-152, exchangeable potassium - 146-160 mg per kg of soil. Potassium fertilizers were applied in increasing doses - К30, К60, К90, К120, К150, К180 kg of the active substance together with the background fertilizers - N90Р120S30 and microelements deficient in this soil: copper, boron and molybdenum in the composition of ZhUSS-1 and ZhUSS-2. The influence of the studied doses of fertilizers on crop yield, dry matter content, vitamin C, starch and nitrates has been established. On average of three years, the productivity of tubers was 21.67 tons per hectare. When applying background fertilizers (N90Р120S30) compared with the control, it increased by 4.32 tons per hectare. The optimal dose of potash fertilizer on the background of N90Р120S30 for potatoes grown under irrigation was К150, where the average yield of three years was 34.42 tons per hectare. A further increase in the dose of fertilizers did not significantly increase the productivity. On average of three years, the highest dry matter content was 22.81% and starch - 13.15% was noted in the variant, where potassium was applied in a dose of К180 kg of the active substance together with background fertilizers and microelements. With the introduction of high doses of potassium (К150 and К180 kg of the active substance), the content of dry matter and starch did not significantly differ from those in the control.
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Claims 9
Claim · model-written summary
Mean tuber productivity over three years was 21.67 tons per hectare.
- Taxon
- POTATO
Solanum tuberosumt0 - Outcome
- productivity of tuberse0
- Value
- 21.67 tons per hectaree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On average of three years, the productivity of tubers was 21.67 tons per hectare.”
t0“POTATO”
Claim · model-written summary
Background fertilizer increased potato productivity by 4.32 tons per hectare compared with control.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- background fertilizers (N90Р120S30)e0
- Outcome
- productivity of tuberse1
- Direction
- increasede0
- Value
- 4.32 tons per hectaree0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When applying background fertilizers (N90Р120S30) compared with the control, it increased by 4.32 tons per hectare.”
e1“On average of three years, the productivity of tubers was 21.67 tons per hectare.”
t0“POTATO”
Claim · model-written summary
Irrigated potatoes receiving К150 on the N90Р120S30 background yielded 34.42 tons per hectare.
- Taxon
- potatoesSolanum tuberosume0
- Treatment
- К150e0
- Outcome
- average yielde0
- Value
- 34.42 tons per hectaree0
- Qualifier
- under irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimal dose of potash fertilizer on the background of N90Р120S30 for potatoes grown under irrigation was К150, where the average yield of three years was 34.42 tons per hectare.”
Claim · model-written summary
The authors identify К150 as the optimal potassium dose on the N90Р120S30 background for irrigated potatoes.
- Taxon
- potatoesSolanum tuberosume0
- Outcome
- К150e0
- Qualifier
- background of N90Р120S30e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimal dose of potash fertilizer on the background of N90Р120S30 for potatoes grown under irrigation was К150”
Claim · model-written summary
Further fertilizer increases did not significantly increase potato productivity.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- further increase in the dose of fertilizerse0
- Outcome
- productivitye0
- Direction
- did not significantly increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A further increase in the dose of fertilizers did not significantly increase the productivity.”
t0“POTATO”
Claim · model-written summary
К180 with background fertilizers and microelements gave the highest dry matter content, 22.81%.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- К180 kg of the active substance together with background fertilizers and microelementse0
- Outcome
- dry matter contente0
- Direction
- higheste0
- Value
- 22.81%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On average of three years, the highest dry matter content was 22.81% and starch - 13.15% was noted in the variant, where potassium was applied in a dose of К180 kg of the active substance together with background fertilizers and microelements.”
t0“POTATO”
Claim · model-written summary
К180 with background fertilizers and microelements gave the highest starch content, 13.15%.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- К180 kg of the active substance together with background fertilizers and microelementse0
- Outcome
- starche0
- Direction
- higheste0
- Value
- 13.15%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On average of three years, the highest dry matter content was 22.81% and starch - 13.15% was noted in the variant, where potassium was applied in a dose of К180 kg of the active substance together with background fertilizers and microelements.”
t0“POTATO”
Claim · model-written summary
At К150, dry matter and starch contents did not significantly differ from control.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- К150e0
- Outcome
- content of dry matter and starche0
- Direction
- did not significantly differe0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the introduction of high doses of potassium (К150 and К180 kg of the active substance), the content of dry matter and starch did not significantly differ from those in the control.”
t0“POTATO”
Claim · model-written summary
At К180, dry matter and starch contents did not significantly differ from control.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- К180 kg of the active substancee0
- Outcome
- content of dry matter and starche0
- Direction
- did not significantly differe0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the introduction of high doses of potassium (К150 and К180 kg of the active substance), the content of dry matter and starch did not significantly differ from those in the control.”
t0“POTATO”
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