Abstract
Abstract. Zinc (Zn) deficiency is widespread in all types of soils of world including acid soils affecting crop production and nutritional quality of edible plant parts. There is, however, limited information available regarding effects of lime and farmyard manure (FYM) addition on soil properties, phyto-available Zn by different extractants, dry matter yield, Zn concentration and uptake by maize (Zea mays L.). Green house pot experiments were carried out in two acid soils to study the effect of five levels of lime (0, 1/10 lime requirement (LR), 1/3 LR, 2/3 LR and LR), three levels of Zn concentration (0, 2.5 and 5.0 mg Zn kg−1 soil) and two levels of FYM (0 and 10 t ha−1) addition on soil pH, EC and OC content, phyto-available Zn in soil and dry matter yield, Zn concentration and uptake by maize plant grown up to 60 days. Application of lime and FYM improved soil pH. Increased level of lime application reduced Zn extracted by DTPA, Mehlich 1, Mehlich 3, 0.1 N HCl and ABDTPA extractants. However, application of FYM along with lime improved Zn extraction. The amount of Zn extracted by different extractants followed the order DTPA-Zn < ABDTPA-Zn < Mehlich-1 Zn < 0.1 M HCl. Lime rate of 1/3rd LR was found to be optimum as dry matter yield of maize increased significantly with lime application up to 1/3rd LR in soils of both the series and decreased subsequently. Addition of FYM with and without lime increased dry matter yield. Application of Zn up to 5.0 mg kg−1 to soil increased dry matter yield with and without FYM application in soils of Hariharapur series. Addition of higher doses of lime significantly reduced Zn concentration in maize crop grown in soils of both the series. Mean Zn uptake values were at par for no lime, 1/10th LR and 1/3rd LR with and without FYM application and it was significantly higher than Zn uptake by 2/3rd LR and LR treatments. However, FYM application improved Zn uptake by maize crop. Zn extracted by different extractants like DTPA, ABDTPA, Mehlich 1, Mehlich 3 and 0.1 M HCl was positively and significantly correlated amongst themselves and with dry matter yield, Zn concentration and Zn uptake by maize.
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Claims 12
Claim · model-written summary
Lime and manure improved soil pH.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of lime and FYM improved soil pH”
t0“maize”
Claim · model-written summary
Increasing lime reduced extractable soil zinc across listed extractants.
- Treatment
- lime applicatione0
- Outcome
- Zn extracted by DTPA, Mehlich 1, Mehlich 3, 0.1 N HCl and ABDTPA extractantse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased level of lime application reduced Zn extracted by DTPA, Mehlich 1, Mehlich 3, 0.1 N HCl and ABDTPA extractants”
t0“maize”
Claim · model-written summary
Manure with lime improved zinc extraction.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of FYM along with lime improved Zn extraction”
t0“maize”
Claim · model-written summary
Extracted zinc followed the stated ranking among extractants.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amount of Zn extracted by different extractants followed the order DTPA-Zn < ABDTPA-Zn < Mehlich-1 Zn < 0.1 M HCl”
t0“maize”
Claim · model-written summary
Maize dry matter yield increased significantly through one-third lime requirement, then decreased.
- Treatment
- lime application up to 1/3rd LRe0
- Outcome
- dry matter yield of maizee0
- Direction
- increasede0
- Qualifier
- in soils of both the seriese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry matter yield of maize increased significantly with lime application up to 1/3rd LR in soils of both the series and decreased subsequently”
Claim · model-written summary
Manure increased maize dry matter yield with and without lime.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of FYM with and without lime increased dry matter yield”
t0“maize”
Claim · model-written summary
Zinc addition increased dry matter yield in Hariharapur soil.
- Treatment
- Zn up to 5.0 mg kg−1 to soile0
- Outcome
- dry matter yielde0
- Direction
- increasede0
- Setting
- soils of Hariharapur seriese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Zn up to 5.0 mg kg−1 to soil increased dry matter yield with and without FYM application in soils of Hariharapur series”
t0“maize”
Claim · model-written summary
Higher lime doses significantly reduced maize zinc concentration.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher doses of lime significantly reduced Zn concentration in maize crop grown in soils of both the series”
Claim · model-written summary
Low lime treatments had greater zinc uptake than higher lime treatments.
- Treatment
- no lime, 1/10th LR and 1/3rd LRe0
- Outcome
- Zn uptakee0
- Direction
- highere0
- Comparator
- 2/3rd LR and LR treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean Zn uptake values were at par for no lime, 1/10th LR and 1/3rd LR with and without FYM application and it was significantly higher than Zn uptake by 2/3rd LR and LR treatments”
t0“maize”
Claim · model-written summary
Manure improved maize zinc uptake.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FYM application improved Zn uptake by maize crop”
Claim · model-written summary
Extractant zinc values correlated positively with one another.
- Outcome
- Zn extracted by different extractantse0
- Direction
- positivelye0
- Comparator
- DTPA, ABDTPA, Mehlich 1, Mehlich 3 and 0.1 M HCle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn extracted by different extractants like DTPA, ABDTPA, Mehlich 1, Mehlich 3 and 0.1 M HCl was positively and significantly correlated amongst themselves”
t0“maize”
Claim · model-written summary
Extractant zinc was positively correlated with maize dry matter yield, zinc concentration and uptake.
- Outcome
- dry matter yield, Zn concentration and Zn uptake by maizee0
- Direction
- positivelye0
- Comparator
- Zn extracted by different extractantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn extracted by different extractants like DTPA, ABDTPA, Mehlich 1, Mehlich 3 and 0.1 M HCl was positively and significantly correlated amongst themselves and with dry matter yield, Zn concentration and Zn uptake by maize”
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