Abstract
A field experiment was carried out at ICAR- Central Tuber Crops Research Institute (CTCRI), Sreekariyam, Thiruvananthapuram, Kerala, India to investigate the effect of different nitrogen application rates on yield and yield attributes of two long-duration cassava varieties during March, 2021 to February, 2022. The experiment was set up in Factorial Randomized Block Design (FRBD) with three replications involving two factors- two cassava varieties (Sree Pavithra and Sree Reksha) and five different nitrogen application rates (0%, 25%, 50%, 100% and 125%) of recommended nitrogen dose of 100 kg ha-1. The study revealed that the application of super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) significantly increased the yield (52.61 t ha-1) and yield attributes namely number of tubers (3.55) plant-1, average lenth of tuber (25.48 cm), average diameter of the tuber (12 cm) and average tuber yield plant-1 (4.24 kg) in cassava. Also, super optimal dose of nitrogen positively influenced SPAD 502 chlorophyll meter reading (45.13), leaf chlorophyll a content (1.52, 1.72 mg g-1), chlorophyll b (0.64, 0.72 mg g-1) content and total chlorophyll content (2.20, 2.49 mg g-1), leaf carotene content (0.42, 0.48 mg g-1) in V1 (Sree Pavithra) V2 (Sree Reksha) respectively. Super optimal level of nitrogen positively influenced nitrogen content in leaf,stem and tuber along with phosphorous and potash content in both varieties of cassava.
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Claims 16
Claim · model-written summary
super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) increased yield in cassava.
- Taxon
- cassava
Manihot esculentae0 - Treatment
- super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1)e0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 52.61 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The study revealed that the application of super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) significantly increased the yield (52.61 t ha-1) and yield attributes namely number of tubers (3.55) plant-1, average lenth of tuber (25.48 cm), average diameter of the tuber (12 cm) and average tuber yield plant-1 (4.24 kg) in cassava.”
Claim · model-written summary
super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) increased number of tubers in cassava.
- Taxon
- cassavaManihot esculentae0
- Treatment
- super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1)e0
- Outcome
- number of tuberse0
- Direction
- increasede0
- Value
- 3.55e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The study revealed that the application of super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) significantly increased the yield (52.61 t ha-1) and yield attributes namely number of tubers (3.55) plant-1, average lenth of tuber (25.48 cm), average diameter of the tuber (12 cm) and average tuber yield plant-1 (4.24 kg) in cassava.”
Claim · model-written summary
super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) increased average lenth of tuber in cassava.
- Taxon
- cassavaManihot esculentae0
- Treatment
- super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1)e0
- Outcome
- average lenth of tubere0
- Direction
- increasede0
- Value
- 25.48 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The study revealed that the application of super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) significantly increased the yield (52.61 t ha-1) and yield attributes namely number of tubers (3.55) plant-1, average lenth of tuber (25.48 cm), average diameter of the tuber (12 cm) and average tuber yield plant-1 (4.24 kg) in cassava.”
Claim · model-written summary
super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) increased average diameter of the tuber in cassava.
- Taxon
- cassavaManihot esculentae0
- Treatment
- super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1)e0
- Outcome
- average diameter of the tubere0
- Direction
- increasede0
- Value
- 12 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The study revealed that the application of super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) significantly increased the yield (52.61 t ha-1) and yield attributes namely number of tubers (3.55) plant-1, average lenth of tuber (25.48 cm), average diameter of the tuber (12 cm) and average tuber yield plant-1 (4.24 kg) in cassava.”
Claim · model-written summary
super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) increased average tuber yield plant-1 in cassava.
- Taxon
- cassavaManihot esculentae0
- Treatment
- super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1)e0
- Outcome
- average tuber yield plant-1e0
- Direction
- increasede0
- Value
- 4.24 kge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The study revealed that the application of super optimal dose of nitrogen (125%RD of nitrogen @ 125 kg ha-1) significantly increased the yield (52.61 t ha-1) and yield attributes namely number of tubers (3.55) plant-1, average lenth of tuber (25.48 cm), average diameter of the tuber (12 cm) and average tuber yield plant-1 (4.24 kg) in cassava.”
Claim · model-written summary
Super-optimal nitrogen positively influenced the SPAD 502 reading.
- Taxon
- cassavaManihot esculentat0
- Treatment
- super optimal dose of nitrogene0
- Outcome
- SPAD 502 chlorophyll meter readinge0
- Direction
- positively influencede0
- Value
- 45.13e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava”
e0“Also, super optimal dose of nitrogen positively influenced SPAD 502 chlorophyll meter reading (45.13), leaf chlorophyll a content (1.52, 1.72 mg g-1), chlorophyll b (0.64, 0.72 mg g-1) content and total chlorophyll content (2.20, 2.49 mg g-1), leaf carotene content (0.42, 0.48 mg g-1) in V1 (Sree Pavithra) V2 (Sree Reksha) respectively.”
Claim · model-written summary
Super-optimal nitrogen positively influenced chlorophyll a content in Sree Pavithra.
- Taxon
- cassavaManihot esculentat0
- Material
- Sree Pavithrae0
- Treatment
- super optimal dose of nitrogene0
- Outcome
- chlorophyll a contente0
- Direction
- positively influencede0
- Value
- 1.52e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava”
e0“Also, super optimal dose of nitrogen positively influenced SPAD 502 chlorophyll meter reading (45.13), leaf chlorophyll a content (1.52, 1.72 mg g-1), chlorophyll b (0.64, 0.72 mg g-1) content and total chlorophyll content (2.20, 2.49 mg g-1), leaf carotene content (0.42, 0.48 mg g-1) in V1 (Sree Pavithra) V2 (Sree Reksha) respectively.”
Claim · model-written summary
Super-optimal nitrogen positively influenced chlorophyll a content in Sree Reksha.
- Taxon
- cassavaManihot esculentat0
- Material
- Sree Rekshae0
- Treatment
- super optimal dose of nitrogene0
- Outcome
- chlorophyll a contente0
- Direction
- positively influencede0
- Value
- 1.72 mg g-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava”
e0“Also, super optimal dose of nitrogen positively influenced SPAD 502 chlorophyll meter reading (45.13), leaf chlorophyll a content (1.52, 1.72 mg g-1), chlorophyll b (0.64, 0.72 mg g-1) content and total chlorophyll content (2.20, 2.49 mg g-1), leaf carotene content (0.42, 0.48 mg g-1) in V1 (Sree Pavithra) V2 (Sree Reksha) respectively.”
Claim · model-written summary
Super-optimal nitrogen positively influenced chlorophyll b in Sree Pavithra.
- Taxon
- cassavaManihot esculentat0
- Material
- Sree Pavithrae0
- Treatment
- super optimal dose of nitrogene0
- Outcome
- chlorophyll be0
- Direction
- positively influencede0
- Value
- 0.64e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava”
e0“Also, super optimal dose of nitrogen positively influenced SPAD 502 chlorophyll meter reading (45.13), leaf chlorophyll a content (1.52, 1.72 mg g-1), chlorophyll b (0.64, 0.72 mg g-1) content and total chlorophyll content (2.20, 2.49 mg g-1), leaf carotene content (0.42, 0.48 mg g-1) in V1 (Sree Pavithra) V2 (Sree Reksha) respectively.”
Claim · model-written summary
Super-optimal nitrogen positively influenced chlorophyll b in Sree Reksha.
- Taxon
- cassavaManihot esculentat0
- Material
- Sree Rekshae0
- Treatment
- super optimal dose of nitrogene0
- Outcome
- chlorophyll be0
- Direction
- positively influencede0
- Value
- 0.72 mg g-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava”
e0“Also, super optimal dose of nitrogen positively influenced SPAD 502 chlorophyll meter reading (45.13), leaf chlorophyll a content (1.52, 1.72 mg g-1), chlorophyll b (0.64, 0.72 mg g-1) content and total chlorophyll content (2.20, 2.49 mg g-1), leaf carotene content (0.42, 0.48 mg g-1) in V1 (Sree Pavithra) V2 (Sree Reksha) respectively.”
Claim · model-written summary
Super-optimal nitrogen positively influenced total chlorophyll content in Sree Pavithra.
- Taxon
- cassavaManihot esculentat0
- Material
- Sree Pavithrae0
- Treatment
- super optimal dose of nitrogene0
- Outcome
- total chlorophyll contente0
- Direction
- positively influencede0
- Value
- 2.20e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava”
e0“Also, super optimal dose of nitrogen positively influenced SPAD 502 chlorophyll meter reading (45.13), leaf chlorophyll a content (1.52, 1.72 mg g-1), chlorophyll b (0.64, 0.72 mg g-1) content and total chlorophyll content (2.20, 2.49 mg g-1), leaf carotene content (0.42, 0.48 mg g-1) in V1 (Sree Pavithra) V2 (Sree Reksha) respectively.”
Claim · model-written summary
Super-optimal nitrogen positively influenced total chlorophyll content in Sree Reksha.
- Taxon
- cassavaManihot esculentat0
- Material
- Sree Rekshae0
- Treatment
- super optimal dose of nitrogene0
- Outcome
- total chlorophyll contente0
- Direction
- positively influencede0
- Value
- 2.49 mg g-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava”
e0“Also, super optimal dose of nitrogen positively influenced SPAD 502 chlorophyll meter reading (45.13), leaf chlorophyll a content (1.52, 1.72 mg g-1), chlorophyll b (0.64, 0.72 mg g-1) content and total chlorophyll content (2.20, 2.49 mg g-1), leaf carotene content (0.42, 0.48 mg g-1) in V1 (Sree Pavithra) V2 (Sree Reksha) respectively.”
Claim · model-written summary
Super-optimal nitrogen positively influenced leaf carotene content in Sree Pavithra.
- Taxon
- cassavaManihot esculentat0
- Material
- Sree Pavithrae0
- Treatment
- super optimal dose of nitrogene0
- Outcome
- leaf carotene contente0
- Direction
- positively influencede0
- Value
- 0.42e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava”
e0“Also, super optimal dose of nitrogen positively influenced SPAD 502 chlorophyll meter reading (45.13), leaf chlorophyll a content (1.52, 1.72 mg g-1), chlorophyll b (0.64, 0.72 mg g-1) content and total chlorophyll content (2.20, 2.49 mg g-1), leaf carotene content (0.42, 0.48 mg g-1) in V1 (Sree Pavithra) V2 (Sree Reksha) respectively.”
Claim · model-written summary
Super-optimal nitrogen positively influenced leaf carotene content in Sree Reksha.
- Taxon
- cassavaManihot esculentat0
- Material
- Sree Rekshae0
- Treatment
- super optimal dose of nitrogene0
- Outcome
- leaf carotene contente0
- Direction
- positively influencede0
- Value
- 0.48 mg g-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cassava”
e0“Also, super optimal dose of nitrogen positively influenced SPAD 502 chlorophyll meter reading (45.13), leaf chlorophyll a content (1.52, 1.72 mg g-1), chlorophyll b (0.64, 0.72 mg g-1) content and total chlorophyll content (2.20, 2.49 mg g-1), leaf carotene content (0.42, 0.48 mg g-1) in V1 (Sree Pavithra) V2 (Sree Reksha) respectively.”
Claim · model-written summary
Super-optimal nitrogen positively influenced nitrogen content in leaf,stem and tuber in both cassava varieties.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Super optimal level of nitrogene0
- Outcome
- nitrogen content in leaf,stem and tubere0
- Direction
- positively influencede0
- Qualifier
- both varietiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Super optimal level of nitrogen positively influenced nitrogen content in leaf,stem and tuber along with phosphorous and potash content in both varieties of cassava.”
Claim · model-written summary
Super-optimal nitrogen positively influenced phosphorous and potash content in both cassava varieties.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Super optimal level of nitrogene0
- Outcome
- phosphorous and potash contente0
- Direction
- positively influencede0
- Qualifier
- both varietiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Super optimal level of nitrogen positively influenced nitrogen content in leaf,stem and tuber along with phosphorous and potash content in both varieties of cassava.”
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