Abstract
Cereals are vital food crops that provide dietary energy and food security. Among the different cereal crops , maize has its own importance in terms of area, production and productivity. However, it is a highly nutrient–draining crop, and its sustainable yield is dependent on proper nutrient management. The regional recommended dose of fertilizers and blanket application of nutrients cannot fulfil the requirements for improving maize productivity. Therefore, an experiment on precision nutrient management in maize was designed to optimize nutrient requirements and increase crop yield . The experiment was conducted for two consecutive years during two rabi seasons (November–March), 2021–2022 and 2022–2023, at the postgraduate research farms of the M.S. Swaminathan School of Agriculture , Centurion University of Technology and Management, Odisha, India. The treatments used were as follows: T 1 : recommended dose of fertilizer (RDF), T 2 : 125 % RDF, T 3 : 75 % RDF, T 4 : 150 % RDF, T 5 : RDF + nanourea, T 6 : 75 % RDF + nanourea, T 7 : leaf colour chart (LCC) 4–based nitrogen management, T 8 : LCC 5–based nitrogen management, T 9 : a chlorophyll content meter (CCM) (sufficiency index) (SI)–based nitrogen management at SI 85–90 %, T 10 : CCM SI–based N management at SI 90–95 % T 11 : nutrient expert (NE)–based nutrient recommendation for a targeted yield of 7 t/ha, T 12 : NE–based nutrient recommendation for a targeted yield of 9 t/ha and T 13 : unfertilized control. All the treatments were arranged in a randomized complete block design and replicated three times. The results revealed that during the harvesting stage, the highest plant height (239 and 242 cm), dry matter accumulation (2066 and 2149 g/m 2 ), and leaf area (2985 and 2897 cm/m 2 ) were obtained for both years with the T 10 treatment: CCM SI–based N management at SI 90–95 %; however, they remained statistically significant at par with T 4 :150 % RDF during all the growth stages of maize. Higher values of most of the yield attributes were noted with CCM–SI-based N management at 90–95 % SI, which was on par with 150 % RDF. The impacts of growth and yield attributes were reflected in the grain (7.67 and 7.80 t/ha, respectively) and stover yields (12.72 and 12.60 t/ha, respectively) during both years. This study concluded that the precise application of nitrogen through a CCM–based sufficiency index by increasing the number of spits along with an optimum dose of phosphorous and potassium can improve the growth and productivity of maize.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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
CCM SI 90–95% nitrogen management gave the highest plant height at harvest (239 and 242 cm), on par with 150% RDF.
- Organ / stage
- harvesting stagee1
- Treatment
- CCM SI–based N management at SI 90–95 %e1
- Outcome
- plant heighte1
- Direction
- higheste1
- Value
- 239 and 242 cme1
- Comparator
- 150 % RDFe1
- Setting
- Odisha, Indiae2
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“during the harvesting stage, the highest plant height (239 and 242 cm), dry matter accumulation (2066 and 2149 g/m 2 ), and leaf area (2985 and 2897 cm/m 2 ) were obtained for both years with the T 10 treatment: CCM SI–based N management at SI 90–95 %; however, they remained statistically significant at par with T 4 :150 % RDF”
e2“postgraduate research farms of the M.S. Swaminathan School of Agriculture , Centurion University of Technology and Management, Odisha, India”
t0“growth and productivity of maize (Zea mays L.)”
Claim · model-written summary
CCM SI 90–95% nitrogen management gave the highest dry matter accumulation at harvest (2066 and 2149 g/m2), on par with 150% RDF.
- Organ / stage
- harvesting stagee1
- Treatment
- CCM SI–based N management at SI 90–95 %e1
- Outcome
- dry matter accumulatione1
- Direction
- higheste1
- Value
- 2066 and 2149 g/m 2e1
- Comparator
- 150 % RDFe1
- Setting
- Odisha, Indiae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“during the harvesting stage, the highest plant height (239 and 242 cm), dry matter accumulation (2066 and 2149 g/m 2 ), and leaf area (2985 and 2897 cm/m 2 ) were obtained for both years with the T 10 treatment: CCM SI–based N management at SI 90–95 %; however, they remained statistically significant at par with T 4 :150 % RDF”
e2“postgraduate research farms of the M.S. Swaminathan School of Agriculture , Centurion University of Technology and Management, Odisha, India”
t0“growth and productivity of maize (Zea mays L.)”
Claim · model-written summary
CCM SI 90–95% nitrogen management gave the highest leaf area at harvest (2985 and 2897 cm/m2), on par with 150% RDF.
- Organ / stage
- harvesting stagee1
- Treatment
- CCM SI–based N management at SI 90–95 %e1
- Outcome
- leaf areae1
- Direction
- higheste1
- Value
- 2985 and 2897 cm/m 2e1
- Comparator
- 150 % RDFe1
- Setting
- Odisha, Indiae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“during the harvesting stage, the highest plant height (239 and 242 cm), dry matter accumulation (2066 and 2149 g/m 2 ), and leaf area (2985 and 2897 cm/m 2 ) were obtained for both years with the T 10 treatment: CCM SI–based N management at SI 90–95 %; however, they remained statistically significant at par with T 4 :150 % RDF”
e2“postgraduate research farms of the M.S. Swaminathan School of Agriculture , Centurion University of Technology and Management, Odisha, India”
t0“growth and productivity of maize (Zea mays L.)”
Claim · model-written summary
CCM SI 90–95% nitrogen management gave higher values of most yield attributes, on par with 150% RDF.
- Treatment
- CCM–SI-based N management at 90–95 % SIe3
- Outcome
- yield attributese3
- Direction
- Highere3
- Comparator
- 150 % RDFe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Higher values of most of the yield attributes were noted with CCM–SI-based N management at 90–95 % SI, which was on par with 150 % RDF”
t0“growth and productivity of maize (Zea mays L.)”
Claim · model-written summary
Grain yield was 7.67 and 7.80 t/ha in the two years.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“grain (7.67 and 7.80 t/ha, respectively) and stover yields (12.72 and 12.60 t/ha, respectively) during both years”
t0“growth and productivity of maize (Zea mays L.)”
Claim · model-written summary
Stover yield was 12.72 and 12.60 t/ha in the two years.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“grain (7.67 and 7.80 t/ha, respectively) and stover yields (12.72 and 12.60 t/ha, respectively) during both years”
t0“growth and productivity of maize (Zea mays L.)”
Claim · model-written summary
The authors conclude that precise N application by a CCM-based sufficiency index, with more splits and an optimum P and K dose, can improve maize growth and productivity.
- Treatment
- precise application of nitrogen through a CCM–based sufficiency indexe5
- Outcome
- growth and productivitye5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“the precise application of nitrogen through a CCM–based sufficiency index by increasing the number of spits along with an optimum dose of phosphorous and potassium can improve the growth and productivity of maize”
The same questions in other papers
chlorophyll · growth · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
chlorophyll · yield · Zea mays (maize)Results agree
2 papers in the same direction as this paper
- positive
- positive
nitrogen · growth · Zea mays (maize)Positive and negative results
618 papers in the same direction as this paper · 115 in the opposite direction · 14 reporting no difference from an alternative
- no effect
- positive
- positive
744 papers more in this group
See all 748 papers →nitrogen · yield · Zea mays (maize)Positive and negative results
1,905 papers in the same direction as this paper · 234 in the opposite direction · 45 reporting no difference from an alternative
- positive
- positive
- positive
2,181 papers more in this group
See all 2,185 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.