Abstract
Zeolites (sodium alumino silicates) are effective controlled nutrient release materials that are highly useful to improve soil nutrient use efficiency, plant uptake of nutrients especially NPK because of its twin benefits of high cation exchange and water retention properties. In this paper, we evaluated different types of synthetic zeolites applications viz. fly ash based near neutral agricultural grade (FAZ) and commercial (CZ) zeolites (zeolite 4A) in tropical laterite soils with respect to soil chemical properties, soil water content, sodium adsorption ratio (SAR) as well as plant growth parameters and yield of sweet potato crop (variety ST-14) with an aim of understanding the effectiveness of zeolites on NPK uptake efficiency. A pot study was conducted in farm soils of CTCRI (acidic, sandy loam soils) using six treatments viz. FAZ applied at 1% and 2% levels (w/w, zeolite: soil) (denoted as F1 and F2), pH treated CZ at 1% level, potassium and zinc impregnated CZ (K-CZ and Zn-CZ) at 1% and a control (with out zeolites) each replicated thrice in a completely randomized design. Study showed that 1% zeolite amended soils registered a better soil moisture increase over control to an extent of 20.9 % and tuber yield increase of 57% over control. Soils amended with both FAZ levels are well below the critical limits in terms of SAR. The uptake efficiency of FAZ amended at 1% (F1) rate was significantly superior in respect of N and P as compared to F2 and control. The study also suggested that FAZ at 1% will be beneficial for sweet potato crop.
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Claims 6
Claim · model-written summary
One percent zeolite raised soil moisture by 20.9% versus control.
- Taxon
- sweet potato
_Flower.jpg?width=60)
Ipomoea batatast0 - Treatment
- 1% zeolitee0
- Outcome
- soil moisturee0
- Direction
- increasee0
- Value
- 20.9 %e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“1% zeolite amended soils registered a better soil moisture increase over control to an extent of 20.9 %”
t0“Sweet Potato”
Claim · model-written summary
One percent zeolite increased sweet potato tuber yield by 57% versus control.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- 1% zeolitee0
- Outcome
- tuber yielde0
- Direction
- increasee0
- Value
- 57%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1% zeolite amended soils registered a better soil moisture increase over control to an extent of 20.9 % and tuber yield increase of 57% over control”
t0“Sweet Potato”
Claim · model-written summary
Soils amended with both FAZ rates remained below critical SAR limits.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- both FAZ levelse0
- Outcome
- SARe0
- Direction
- below the critical limitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soils amended with both FAZ levels are well below the critical limits in terms of SAR”
t0“Sweet Potato”
Claim · model-written summary
FAZ at 1% produced significantly superior nitrogen uptake efficiency to F2 and control.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- FAZ amended at 1% (F1) ratee0
- Outcome
- uptake efficiencye0
- Direction
- superiore0
- Qualifier
- Ne0
- Comparator
- F2 and controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The uptake efficiency of FAZ amended at 1% (F1) rate was significantly superior in respect of N and P as compared to F2 and control”
t0“Sweet Potato”
Claim · model-written summary
FAZ at 1% produced significantly superior phosphorus uptake efficiency to F2 and control.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- FAZ amended at 1% (F1) ratee0
- Outcome
- uptake efficiencye0
- Direction
- superiore0
- Qualifier
- Pe0
- Comparator
- F2 and controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The uptake efficiency of FAZ amended at 1% (F1) rate was significantly superior in respect of N and P as compared to F2 and control”
t0“Sweet Potato”
Claim · model-written summary
The authors suggest FAZ at 1% for sweet potato.
- Taxon
- sweet potatoIpomoea batatast0
- Outcome
- FAZ at 1% will be beneficiale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FAZ at 1% will be beneficial for sweet potato crop”
t0“Sweet Potato”
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