Abstract
Deteriorating soil fertility and gradually decreasing rice productivity along with higher greenhouse gas emissions from paddy fields have emerged as serious threats to the sustainability of rice production and food security. Rice production in the subtropical environment in Bangladesh is mostly dependent on synthetic inorganic fertilizer to maintain productivity; however, the inorganic fertilizer has negative effects on global warming. Climate-smart and resilient agricultural production systems are major concerns nowadays to meet sustainable development goals. The study was conducted to evaluate the optimum rate and source of organic amendments on rice productivity and soil fertility along with CH4 emission. A total of nine nutrient combinations were used in the study. The CH4 emission, soil redox potential (Eh), soil pH, soil nitrogen and organic carbon, available phosphorus, rice grain and straw were greatly affected by the application of different rates and sources of the nutrient. However, the soil exchangeable K content, plant height, and harvest index were not affected. Among the treatments, the application of 75% recommended fertilizer (RF) + biosolid 2 t ha−1 (T3) was the most effective and showed the superior performance in terms of available P (12.90 ppm), the number of grains panicle−1 (121), and 1000-grain weight (24.6g), rice grain, and straw yield along with the moderate CH4 emission (18.25 mg m−2h−1). On the other hand, the lowest soil Eh (−158 mV) and soil pH (6.65) were measured from the treatment T3. The finding of this study revealed that the application of 75% of RF + biosolid 2 t ha−1 can be recommended as the preferable soil amendment for boosting rice yield, reduce CH4 emissions, and sustainably maintain soil fertility. Furthermore, this finding may help to introduce preferable soil amendment doses, which will contribute to boosting rice productivity and economic turnouts of the farmers.
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Claims 10
Claim · model-written summary
Nutrient combinations affected methane emission, soil properties, and rice grain and straw.
- Taxon
- Rice
Oryza sativat0 - Treatment
- different rates and sources of the nutriente0
- Outcome
- rice grain and strawe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The CH4 emission, soil redox potential (Eh), soil pH, soil nitrogen and organic carbon, available phosphorus, rice grain and straw were greatly affected by the application of different rates and sources of the nutrient.”
t0“Rice”
Claim · model-written summary
Nutrient combinations did not affect soil exchangeable K, plant height, or harvest index.
- Taxon
- RiceOryza sativat0
- Treatment
- Organic Amendmentst0
- Outcome
- plant height, and harvest indexe0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, the soil exchangeable K content, plant height, and harvest index were not affected.”
t0“Organic Amendments Boost Soil Fertility and Rice Productivity”
Claim · model-written summary
T3 produced available P of 12.90 ppm.
- Taxon
- riceOryza sativae0
- Treatment
- 75% recommended fertilizer (RF) + biosolid 2 t ha−1e0
- Outcome
- available Pe0
- Direction
- superiore0
- Value
- 12.90 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of 75% recommended fertilizer (RF) + biosolid 2 t ha−1 (T3) was the most effective and showed the superior performance in terms of available P (12.90 ppm), the number of grains panicle−1 (121), and 1000-grain weight (24.6g), rice grain, and straw yield along with the moderate CH4 emission (18.25 mg m−2h−1).”
Claim · model-written summary
T3 produced number of grains panicle−1 of 121.
- Taxon
- riceOryza sativae0
- Treatment
- 75% recommended fertilizer (RF) + biosolid 2 t ha−1e0
- Outcome
- number of grains panicle−1e0
- Direction
- superiore0
- Value
- 121e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of 75% recommended fertilizer (RF) + biosolid 2 t ha−1 (T3) was the most effective and showed the superior performance in terms of available P (12.90 ppm), the number of grains panicle−1 (121), and 1000-grain weight (24.6g), rice grain, and straw yield along with the moderate CH4 emission (18.25 mg m−2h−1).”
Claim · model-written summary
T3 produced 1000-grain weight of 24.6g.
- Taxon
- riceOryza sativae0
- Treatment
- 75% recommended fertilizer (RF) + biosolid 2 t ha−1e0
- Outcome
- 1000-grain weighte0
- Direction
- superiore0
- Value
- 24.6ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of 75% recommended fertilizer (RF) + biosolid 2 t ha−1 (T3) was the most effective and showed the superior performance in terms of available P (12.90 ppm), the number of grains panicle−1 (121), and 1000-grain weight (24.6g), rice grain, and straw yield along with the moderate CH4 emission (18.25 mg m−2h−1).”
Claim · model-written summary
T3 gave superior rice grain and straw yield.
- Taxon
- riceOryza sativae0
- Treatment
- 75% recommended fertilizer (RF) + biosolid 2 t ha−1e0
- Outcome
- rice grain, and straw yielde0
- Direction
- superiore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of 75% recommended fertilizer (RF) + biosolid 2 t ha−1 (T3) was the most effective and showed the superior performance in terms of available P (12.90 ppm), the number of grains panicle−1 (121), and 1000-grain weight (24.6g), rice grain, and straw yield along with the moderate CH4 emission (18.25 mg m−2h−1).”
Claim · model-written summary
T3 had moderate methane emission of 18.25 mg m−2h−1.
- Taxon
- RiceOryza sativat0
- Outcome
- CH4 emissione0
- Value
- 18.25 mg m−2h−1e0
- Qualifier
- moderatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice grain, and straw yield along with the moderate CH4 emission (18.25 mg m−2h−1).”
t0“Rice”
Claim · model-written summary
T3 had the lowest soil redox potential, −158 mV.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest soil Eh (−158 mV) and soil pH (6.65) were measured from the treatment T3.”
t0“Rice”
Claim · model-written summary
T3 had the lowest soil pH, 6.65.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest soil Eh (−158 mV) and soil pH (6.65) were measured from the treatment T3.”
t0“Rice”
Claim · model-written summary
The authors recommend 75% RF plus biosolid 2 t ha−1 to boost yield, reduce methane, and sustain soil fertility.
- Taxon
- riceOryza sativae0
- Outcome
- application of 75% of RF + biosolid 2 t ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of 75% of RF + biosolid 2 t ha−1 can be recommended as the preferable soil amendment for boosting rice yield, reduce CH4 emissions, and sustainably maintain soil fertility.”
The same questions in other papers
organic · yield · Oryza sativa (rice)Positive and negative results
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