Abstract
A field investigation on direct seeded rice (DSR) was carried out in the two consecutive rice growing seasons of 2017 and 2018 at Pantnagar, Uttarakhand, India for the development and validation of soil test crop response (STCR) to fertilizer and for assessing the performance of STCR-treatments as compared to the general recommended dose (GRD) in terms of yield, nutrient uptake and use efficiency, and the economics of DSR. For producing 1 Mg of rice-grain, the required nutrients (N, P, and K) were 2.01 kg, 0.44 kg, and 3.06 kg; the contribution from the soil was 22.05%, 37.34%, and 41.48%; from applied farmyard manure 23.25%, 28.34%, and 16.80%, from fertilizer 38.08%, 49.93%, and 252.98%; and from fertilizer with FYM 44.83%, 60.57%, and 278.70%; for N, P, and K, respectively. The STCR approach, with or without FYM, at both the target yields (4.5 Mg ha−1 and 5.0 Mg ha−1) markedly enhanced the grain yield (20.2% to 32.3%) and production efficiency over the GRD. It also exhibited a higher NPK uptake and use efficiency, along with better profitability, than the GRD. Therefore, the STCR-targeted yield approach could improve the yield, economics, and efficiency of nutrient use for direct seeded rice.
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Claims 11
Claim · model-written summary
Producing 1 Mg rice grain required 2.01 kg N.
- Taxon
- rice
Oryza sativae0 - Outcome
- required nutrientse0
- Value
- 2.01 kge0
- Qualifier
- 1 Mg of rice-graine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For producing 1 Mg of rice-grain, the required nutrients (N, P, and K) were 2.01 kg, 0.44 kg, and 3.06 kg”
Claim · model-written summary
Producing 1 Mg rice grain required 0.44 kg P.
- Taxon
- riceOryza sativae0
- Outcome
- required nutrientse0
- Value
- 0.44 kge0
- Qualifier
- 1 Mg of rice-graine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For producing 1 Mg of rice-grain, the required nutrients (N, P, and K) were 2.01 kg, 0.44 kg, and 3.06 kg”
Claim · model-written summary
Producing 1 Mg rice grain required 3.06 kg K.
- Taxon
- riceOryza sativae0
- Outcome
- required nutrientse0
- Value
- 3.06 kge0
- Qualifier
- 1 Mg of rice-graine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For producing 1 Mg of rice-grain, the required nutrients (N, P, and K) were 2.01 kg, 0.44 kg, and 3.06 kg”
Claim · model-written summary
Soil supplied 22.05% of rice N, 37.34% of P and 41.48% of K.
- Taxon
- riceOryza sativae2
- Outcome
- contribution from the soile0
- Value
- 22.05%, 37.34%, and 41.48%e0
- Qualifier
- for N, P, and K, respectivelye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contribution from the soil was 22.05%, 37.34%, and 41.48%”
e1“for N, P, and K, respectively”
e2“rice-grain”
Claim · model-written summary
Farmyard manure contributed 23.25% of rice N, 28.34% of P and 16.80% of K.
- Taxon
- riceOryza sativae2
- Outcome
- from applied farmyard manuree0
- Value
- 23.25%, 28.34%, and 16.80%e0
- Qualifier
- for N, P, and K, respectivelye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from applied farmyard manure 23.25%, 28.34%, and 16.80%”
e1“for N, P, and K, respectively”
e2“rice-grain”
Claim · model-written summary
Fertilizer contributed 38.08% of rice N, 49.93% of P and 252.98% of K.
- Taxon
- riceOryza sativae2
- Outcome
- from fertilizere0
- Value
- 38.08%, 49.93%, and 252.98%e0
- Qualifier
- for N, P, and K, respectivelye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from fertilizer 38.08%, 49.93%, and 252.98%”
e1“for N, P, and K, respectively”
e2“rice-grain”
Claim · model-written summary
Fertilizer with FYM contributed 44.83% of rice N, 60.57% of P and 278.70% of K.
- Taxon
- riceOryza sativae2
- Outcome
- from fertilizer with FYMe0
- Value
- 44.83%, 60.57%, and 278.70%e0
- Qualifier
- for N, P, and K, respectivelye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from fertilizer with FYM 44.83%, 60.57%, and 278.70%”
e1“for N, P, and K, respectively”
e2“rice-grain”
Claim · model-written summary
STCR with or without FYM increased rice grain yield by 20.2% to 32.3% versus GRD at both target yields.
- Taxon
- riceOryza sativae1
- Treatment
- STCR approach, with or without FYMe0
- Outcome
- grain yielde0
- Direction
- enhancede0
- Value
- 20.2% to 32.3%e0
- Qualifier
- both the target yields (4.5 Mg ha−1 and 5.0 Mg ha−1)e0
- Comparator
- GRDe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The STCR approach, with or without FYM, at both the target yields (4.5 Mg ha−1 and 5.0 Mg ha−1) markedly enhanced the grain yield (20.2% to 32.3%) and production efficiency over the GRD”
e1“rice-grain”
Claim · model-written summary
STCR with or without FYM raised rice production efficiency versus GRD.
- Taxon
- riceOryza sativae1
- Treatment
- STCR approach, with or without FYMe0
- Outcome
- production efficiencye0
- Direction
- enhancede0
- Comparator
- GRDe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The STCR approach, with or without FYM, at both the target yields (4.5 Mg ha−1 and 5.0 Mg ha−1) markedly enhanced the grain yield (20.2% to 32.3%) and production efficiency over the GRD”
e1“rice-grain”
Claim · model-written summary
STCR increased rice NPK uptake and use efficiency versus GRD.
- Taxon
- riceOryza sativae2
- Treatment
- STCR approache1
- Outcome
- NPK uptake and use efficiencye0
- Direction
- highere0
- Comparator
- GRDe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It also exhibited a higher NPK uptake and use efficiency, along with better profitability, than the GRD”
e1“The STCR approach”
e2“rice-grain”
Claim · model-written summary
STCR improved profitability of direct-seeded rice versus GRD.
- Taxon
- riceOryza sativae2
- Treatment
- STCR approache1
- Outcome
- profitabilitye0
- Direction
- bettere0
- Comparator
- GRDe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It also exhibited a higher NPK uptake and use efficiency, along with better profitability, than the GRD”
e1“The STCR approach”
e2“rice-grain”
The same questions in other papers
fertilization · yield · Oryza sativa (rice)Positive and negative results
3,182 papers in the same direction as this paper · 207 in the opposite direction · 65 reporting no difference from an alternative
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- positive
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