Abstract
A pot culture experiment was conducted in the greenhouse of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, using eleven soil series of Bangladesh in order to see the depletion behaviour of potassium (K) by continuous cropping using rice (var.Iratom-24) as the test crop.The soil series were Ranishankhail, Kaonia.Sonatala, Silmondi, Gopalpur, Ishurdi, Sara, Kongsha, Nunni, Lauta and Amnura on which four successive rice plants (45 days duration) were raised with (100 ppm K) or without addition of potassium.Nitrogen, phosphorus, sulfur and zinc were applied as basal to all pots.Potassium application resulted in higher dry matter yield, increased K concentration and uptake in all the soils compared with no K treatment, which gradually decreased in the subsequent harvests.Plant takes up K not only from exchangeable pool but also from non-exchangeable sites.A minimum replenishment of K from the soil reserve was observed.Continuous cropping has resulted in the depletion of available K of the soil.The result indicated that in order to sustain higher crop yield under intensive cultivation, the addition of potash fertilizer is necessary.
Abstract from the paper’s OpenAlex record; open copy licensed other-oa. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Potassium addition increased rice dry matter yield.
- Taxon
- rice
Oryza sativat0 - Treatment
- Potassium applicatione0
- Outcome
- dry matter yielde0
- Direction
- highere0
- Comparator
- no K treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium application resulted in higher dry matter yield, increased K concentration and uptake in all the soils compared with no K treatment”
t0“Rice”
Claim · model-written summary
Potassium addition increased rice K concentration and uptake.
- Taxon
- riceOryza sativat0
- Treatment
- Potassium applicatione0
- Outcome
- K concentration and uptakee0
- Direction
- increasede0
- Comparator
- no K treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium application resulted in higher dry matter yield, increased K concentration and uptake in all the soils compared with no K treatment”
t0“Rice”
Claim · model-written summary
The rice outcomes gradually declined in successive harvests.
- Taxon
- riceOryza sativat0
- Outcome
- subsequent harvestse0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which gradually decreased in the subsequent harvests”
t0“Rice”
Claim · model-written summary
Rice took up K from exchangeable and non-exchangeable pools.
- Taxon
- riceOryza sativat0
- Outcome
- K not only from exchangeable pool but also from non-exchangeable sitese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant takes up K not only from exchangeable pool but also from non-exchangeable sites”
t0“Rice”
Claim · model-written summary
Replenishment of K from soil reserves was minimal.
- Taxon
- riceOryza sativat0
- Outcome
- replenishment of K from the soil reservee0
- Direction
- minimume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A minimum replenishment of K from the soil reserve was observed”
t0“Rice”
Claim · model-written summary
Continuous cropping depleted available soil K.
- Taxon
- riceOryza sativat0
- Treatment
- Continuous croppinge0
- Outcome
- available K of the soile0
- Direction
- depletione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Continuous cropping has resulted in the depletion of available K of the soil”
t0“Rice”
Claim · model-written summary
The authors recommend potash fertilizer to sustain intensive rice yields.
- Taxon
- riceOryza sativat0
- Outcome
- addition of potash fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in order to sustain higher crop yield under intensive cultivation, the addition of potash fertilizer is necessary”
t0“Rice”
The same questions in other papers
rotation · soil: chemistry · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →potassium · nutrient: content · Oryza sativa (rice)Positive and negative results
92 papers in the same direction as this paper · 16 in the opposite direction
- no effect
- negative
- negative
105 papers more in this group
See all 109 papers →potassium · yield · Oryza sativa (rice)Positive and negative results
343 papers in the same direction as this paper · 34 in the opposite direction · 5 reporting no difference from an alternative
- no effect
- negative
- no effect
379 papers more in this group
See all 383 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.