Abstract
A field experiment was conducted at IARI, New Delhi, India to assess the effect of omitted nutrients on growth, yield and profitability of wheat (Triticum aestivum L.) crop, and to validate the STCR based fertilizer application for targeted yield (5.0 t/ha) of wheat (HD 2967) in maize (Zea mays L.) wheat cropping system. The experiment comprised 15 treatments involving application of N (-PKZn), NP (-KZn), NPK (-Zn) and NPZn (-K) to both maize andwheat crops, to maize and to wheat crop only, absolute control (no nutrient applied), recommended rate of nutrients (150-60-40-5.5 kg/ha N-P-K-Zn) and STCR based application of nutrients (200-75-65-4 kg/ha N-P-K-Zn). The fixed plots experiment was carried out in a three-time replicated randomized complete block design. Growth and yield attributes were influenced by nutrient omission treatments significantly and their values were higher when nutrients were applied based on STCR approach. The STCR-based nutrient application significantly increased dry matter production at harvest and grain yield by 4.2 and 8.4% respectively, over recommended doses of NPKZn. Omission of P and K resulted in 12.4 and 17.5% reduction in grain yield, respectively. The yield reduction was slightly lower with Zn omission (2-5%). The STCR-based NPKZn application resulted in consistently higher gross returns of Rupees 71 658 and Rupees 66 720 and also enhanced water productivity by 9.7 and 7.1% during the year 2012-13 and 2013-14, respectively, compared to balanced fertilization with recommended doses of nutrients. Overall, the results revealed that omitting P and K leads to significant yield penalty and application of nutrients using STCR approach should be adopted for achieving higher yield, water productivity and profitability of wheat.
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Claims 10
Claim · model-written summary
STCR nutrient application increased dry matter production at harvest by 4.2.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- STCR-based nutrient applicatione0
- Outcome
- dry matter production at harveste0
- Direction
- increasede0
- Value
- 4.2e0
- Comparator
- recommended doses of NPKZne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The STCR-based nutrient application significantly increased dry matter production at harvest and grain yield by 4.2 and 8.4% respectively, over recommended doses of NPKZn”
t0“of wheat (Triticum aestivum)”
Claim · model-written summary
STCR nutrient application increased grain yield by 8.4%.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- STCR-based nutrient applicatione0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 8.4%e0
- Comparator
- recommended doses of NPKZne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The STCR-based nutrient application significantly increased dry matter production at harvest and grain yield by 4.2 and 8.4% respectively, over recommended doses of NPKZn”
t0“of wheat (Triticum aestivum)”
Claim · model-written summary
Omitting P reduced grain yield by 12.4.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Omission of Pe0
- Outcome
- grain yielde0
- Direction
- reductione0
- Value
- 12.4e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Omission of P and K resulted in 12.4 and 17.5% reduction in grain yield, respectively”
t0“of wheat (Triticum aestivum)”
Claim · model-written summary
Omitting K reduced grain yield by 17.5%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Omission of P and K resulted in 12.4 and 17.5% reduction in grain yield, respectively”
t0“of wheat (Triticum aestivum)”
Claim · model-written summary
Omitting Zn caused a 2–5% yield reduction.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield reduction was slightly lower with Zn omission (2-5%)”
t0“of wheat (Triticum aestivum)”
Claim · model-written summary
STCR application produced gross returns of Rupees 71 658 in 2012-13.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- STCR-based NPKZn applicatione0
- Outcome
- gross returnse0
- Direction
- highere0
- Value
- Rupees 71 658e0
- Qualifier
- 2012-13e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The STCR-based NPKZn application resulted in consistently higher gross returns of Rupees 71 658 and Rupees 66 720 and also enhanced water productivity by 9.7 and 7.1% during the year 2012-13 and 2013-14, respectively, compared to balanced fertilization with recommended doses of nutrients”
t0“of wheat (Triticum aestivum)”
Claim · model-written summary
STCR application produced gross returns of Rupees 66 720 in 2013-14.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- STCR-based NPKZn applicatione0
- Outcome
- gross returnse0
- Direction
- highere0
- Value
- Rupees 66 720e0
- Qualifier
- 2013-14e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The STCR-based NPKZn application resulted in consistently higher gross returns of Rupees 71 658 and Rupees 66 720 and also enhanced water productivity by 9.7 and 7.1% during the year 2012-13 and 2013-14, respectively, compared to balanced fertilization with recommended doses of nutrients”
t0“of wheat (Triticum aestivum)”
Claim · model-written summary
STCR application enhanced water productivity by 9.7 in 2012-13.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- STCR-based NPKZn applicatione0
- Outcome
- water productivitye0
- Direction
- enhancede0
- Value
- 9.7e0
- Qualifier
- 2012-13e0
- Comparator
- balanced fertilization with recommended doses of nutrientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The STCR-based NPKZn application resulted in consistently higher gross returns of Rupees 71 658 and Rupees 66 720 and also enhanced water productivity by 9.7 and 7.1% during the year 2012-13 and 2013-14, respectively, compared to balanced fertilization with recommended doses of nutrients”
t0“of wheat (Triticum aestivum)”
Claim · model-written summary
STCR application enhanced water productivity by 7.1% in 2013-14.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- STCR-based NPKZn applicatione0
- Outcome
- water productivitye0
- Direction
- enhancede0
- Value
- 7.1%e0
- Qualifier
- 2013-14e0
- Comparator
- balanced fertilization with recommended doses of nutrientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The STCR-based NPKZn application resulted in consistently higher gross returns of Rupees 71 658 and Rupees 66 720 and also enhanced water productivity by 9.7 and 7.1% during the year 2012-13 and 2013-14, respectively, compared to balanced fertilization with recommended doses of nutrients”
t0“of wheat (Triticum aestivum)”
Claim · model-written summary
Authors recommend STCR fertilization to improve wheat yield, water productivity, and profitability.
- Taxon
- wheatTriticum aestivume0
- Outcome
- application of nutrients using STCR approach should be adoptede0
- Qualifier
- higher yield, water productivity and profitabilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of nutrients using STCR approach should be adopted for achieving higher yield, water productivity and profitability of wheat”
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