Abstract
A field experiment was carried out at Agriculture College Farm, Raichur during kharif -2017 to study the influence of foliar nutrition at different growth stages on physiological & biochemical parameters and yield of maize. The experiment was laid out in randomized complete block design (RCBD) with thirteen treatments including the control. The treatments were foliar nutrition of NPK (19:19:19) at 1 per cent, H3BO3 at 0.1 per cent and ZnSO4 at 0.5 per cent along with recommended dose of fertilizer sprayed at different growth stages (V5, V6, V11 and V12). Among the different treatments, foliar application of ZnSO4 (0.5 %) at V6 stage revealed a significant effect on physiological parameters such as photosynthesis rate and normalized difference vegetative index (NDVI) and biochemical parameters viz., chlorophyll a, chlorophyll b, total chlorophyll, reducing and non- reducing sugar content in leaves ultimately leading to increasing in yield. Physiological and biochemical parameters except transpiration rate were increased when foliar nutrition was given at early stages (V5 and V6 stage) than late stage (V11 and V12 stage) of leaf growth. It was concluded from the results that foliar nutrition during 25 to 30 days after sowing could increase maize productivity significantly by increasing physiological and biochemical activity.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 5
Claim · model-written summary
Foliar ZnSO4 at V6 significantly affected photosynthesis rate and NDVI.
- Treatment
- foliar application of ZnSO4 (0.5 %) at V6 stagee0
- Outcome
- photosynthesis rate and normalized difference vegetative index (NDVI)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“maize (Zea mays L.)”
e0“foliar application of ZnSO4 (0.5 %) at V6 stage revealed a significant effect on physiological parameters such as photosynthesis rate and normalized difference vegetative index (NDVI)”
Claim · model-written summary
Foliar ZnSO4 at V6 significantly affected leaf chlorophyll and sugar content.
- Treatment
- foliar application of ZnSO4 (0.5 %) at V6 stagee0
- Outcome
- chlorophyll a, chlorophyll b, total chlorophylle0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“maize (Zea mays L.)”
e0“foliar application of ZnSO4 (0.5 %) at V6 stage revealed a significant effect on physiological parameters such as photosynthesis rate and normalized difference vegetative index (NDVI) and biochemical parameters viz., chlorophyll a, chlorophyll b, total chlorophyll, reducing and non- reducing sugar content in leaves ultimately leading to increasing in yield.”
Claim · model-written summary
Foliar ZnSO4 at V6 increased maize yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“maize (Zea mays L.)”
e0“foliar application of ZnSO4 (0.5 %) at V6 stage revealed a significant effect on physiological parameters such as photosynthesis rate and normalized difference vegetative index (NDVI) and biochemical parameters viz., chlorophyll a, chlorophyll b, total chlorophyll, reducing and non- reducing sugar content in leaves ultimately leading to increasing in yield.”
Claim · model-written summary
Early foliar nutrition increased physiological and biochemical parameters relative to late nutrition, except transpiration rate.
- Treatment
- foliar nutrition was given at early stages (V5 and V6 stage)e0
- Outcome
- Physiological and biochemical parameters except transpiration ratee0
- Direction
- increasede0
- Comparator
- late stage (V11 and V12 stage)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“maize (Zea mays L.)”
e0“Physiological and biochemical parameters except transpiration rate were increased when foliar nutrition was given at early stages (V5 and V6 stage) than late stage (V11 and V12 stage) of leaf growth.”
Claim · model-written summary
Authors concluded that foliar nutrition at 25 to 30 days after sowing significantly increases maize productivity.
- Outcome
- foliar nutrition during 25 to 30 days after sowing could increase maize productivity significantlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar nutrition during 25 to 30 days after sowing could increase maize productivity significantly”
The same questions in other papers
zinc sulfate · yield · Zea mays (maize)Results differ
123 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- negative
124 papers more in this group
See all 128 papers →zinc sulfate · physiology: photosynthesis · Zea mays (maize)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
zinc sulfate · physiology: pigments · Zea mays (maize)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →application · physiology: photosynthesis · Zea mays (maize)Positive and negative results
49 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
53 papers more in this group
See all 57 papers →application · physiology: pigments · Zea mays (maize)Positive and negative results
83 papers in the same direction as this paper · 5 in the opposite direction
- positive
- negative
- negative
85 papers more in this group
See all 89 papers →application · yield · Zea mays (maize)Positive and negative results
574 papers in the same direction as this paper · 42 in the opposite direction · 12 reporting no difference from an alternative
- positive
- no effect
- no effect
625 papers more in this group
See all 629 papers →micronutrient · physiology: gas exchange · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
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.