Abstract
In Tamil Nadu, there Is yield gap due to inadequate and imbalance supply of fertilizers and lack of distinct fertilizer recommendations for plenty of varieties and hybrids of maize (Zea mays L). To bridge this gap, a field experiment was conducted during July-October of 2006–2007 and 2007–2008 to study the effect of balanced inorganic fertilizers on yield and nutrient uptake of maize (Zea mays L.) in Peelamedu soil series at Tamil Nadu Agricultural University, Coimbatore. The nutrient sorption study was conducted to evaluate optimum nutrient treatment (ONT). The optimum nutrient requirements were fixed as 200:60:25:10 kg N:P:K:Zn/ha for this soil series belongs to the order of Vertisol. The experiment was laid out in RBD replicated thrice with 13 treatments of different levels of inorganic fertilizers. The grain and stover yield of maize as influenced by various levels of fertilizers in this soil series was found to be significant and the highest grain and stover yield (8.15. and 14.6 t/ha) was recorded in treatment that received 250:60:25:10 kg N:P:K:Zn/ha, respectively. The highest total N and Zn uptake (280.6 and 1.8 kg/ha) was noted from the application of 250:60:25:10 kg N:P:K:Zn/ha. Similarly, the maximum total P and K uptake (77.4 and 219.5 kg/ha, respectively) was observed from the enhanced levels of P and K application (200:75:25:10 and 200:60:31.25:10 kg N:P:K:Zn/ha). The available N-P-K-Zn content of soil was found to be higher due to the enhanced levels of applied nutrients to the soil. The highest net returns (38,867/ha) and net B:C ratio (1.79) were obtained in treatment of 250:60:25:10 kg N:P:K:Zn/ha.
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Claims 10
Claim · model-written summary
The optimum nutrient requirement was fixed at 200:60:25:10 kg N:P:K:Zn/ha.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimum nutrient requirements were fixed as 200:60:25:10 kg N:P:K:Zn/ha for this soil series”
t0“maize”
t1“maize”
Claim · model-written summary
Grain yield was highest at 8.15 t/ha under 250:60:25:10 fertilizer.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest grain and stover yield (8.15. and 14.6 t/ha) was recorded in treatment that received 250:60:25:10 kg N:P:K:Zn/ha”
t0“maize”
t1“maize”
Claim · model-written summary
Stover yield was highest at 14.6 t/ha under 250:60:25:10 fertilizer.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest grain and stover yield (8.15. and 14.6 t/ha) was recorded in treatment that received 250:60:25:10 kg N:P:K:Zn/ha”
t0“maize”
t1“maize”
Claim · model-written summary
Total N uptake was highest at 280.6 kg/ha under 250:60:25:10 fertilizer.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest total N and Zn uptake (280.6 and 1.8 kg/ha) was noted from the application of 250:60:25:10 kg N:P:K:Zn/ha”
t0“maize”
t1“maize”
Claim · model-written summary
Total Zn uptake was highest at 1.8 kg/ha under 250:60:25:10 fertilizer.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest total N and Zn uptake (280.6 and 1.8 kg/ha) was noted from the application of 250:60:25:10 kg N:P:K:Zn/ha”
t0“maize”
t1“maize”
Claim · model-written summary
Total P uptake reached 77.4 kg/ha with enhanced P application.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum total P and K uptake (77.4 and 219.5 kg/ha, respectively) was observed from the enhanced levels of P and K application (200:75:25:10 and 200:60:31.25:10 kg N:P:K:Zn/ha)”
t0“maize”
t1“maize”
Claim · model-written summary
Total K uptake reached 219.5 kg/ha with enhanced K application.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum total P and K uptake (77.4 and 219.5 kg/ha, respectively) was observed from the enhanced levels of P and K application (200:75:25:10 and 200:60:31.25:10 kg N:P:K:Zn/ha)”
t0“maize”
t1“maize”
Claim · model-written summary
Enhanced nutrient application raised available soil N, P, K and Zn.
- Treatment
- enhanced levels of applied nutrientse0
- Outcome
- available N-P-K-Zn content of soile0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“available N-P-K-Zn content of soil was found to be higher due to the enhanced levels of applied nutrients to the soil”
t0“maize”
t1“maize”
Claim · model-written summary
The 250:60:25:10 treatment produced highest net returns of 38,867/ha.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest net returns (38,867/ha) and net B:C ratio (1.79) were obtained in treatment of 250:60:25:10 kg N:P:K:Zn/ha”
t0“maize”
t1“maize”
Claim · model-written summary
The 250:60:25:10 treatment produced highest net B:C ratio of 1.79.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest net returns (38,867/ha) and net B:C ratio (1.79) were obtained in treatment of 250:60:25:10 kg N:P:K:Zn/ha”
t0“maize”
t1“maize”
The same questions in other papers
zinc atom · nutrient: content · Zea mays (maize)Results differ
198 papers in the same direction as this paper · 33 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- negative
- negative
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See all 235 papers →zinc atom · yield · Zea mays (maize)Results differ
390 papers in the same direction as this paper · 47 in the opposite direction · 3 reporting no difference from an alternative
- positive
- negative
- negative
437 papers more in this group
See all 441 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.