Abstract
A field experiment on rice was conducted at RRS, Kaul (Kaithal) of Chaudhary Charan Singh Haryana Agricultural University, Hisar during Kharif season of 2022 to find out optimum dose of nitrogen in rice under late planted condition for getting higher yield. The transplantation get delayed because of shortage of labour and water during the brief transplanting period, which may affect the crop yield adversely under late planting. Soil of experimental field was sandy clay loam texture, alkaline in reaction (7.81), low in organic carbon (0.39%), available nitrogen (130 kg ha-1) and medium in available phosphorous (24 kg ha-1) and high in available potash (480 kg ha-1). The experiment included two transplanting dates (P1: First week of July and P2: Fourth week of July), five levels of N application (N1:0, N2:30, N3:60, N4:90, N5:120 kg N ha-1) laid out in factorial randomised block design. The growth parameters viz. plant height (cm), number of tillers m-2 and dry matter accumulation (g) were reduced significantly under late planting (P2). The yield (grain and straw) of the rice crop increased with each successive increase in N level, although the response was only significant up to 90 kg ha-1. The interaction between planting time and N levels was found to be significant in terms of grain yield, revealing that dose of 90 kg ha-1 was sufficient in timely transplanted rice crops (1st week of July), whereas late transplanted crops (4th week of July) may require a higher dose of N (120 kg ha-1) to get higher yield. However, the highest yield was obtained when the crop was timely transplanted (1st week of July) and supplied 90 kg of N ha-1.
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Claims 6
Claim · model-written summary
Late planting significantly reduced height, tillers and dry matter.
- Taxon
- rice
Oryza sativae1 - Treatment
- late planting (P2)e0
- Outcome
- plant height (cm), number of tillers m-2 and dry matter accumulation (g)e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth parameters viz. plant height (cm), number of tillers m-2 and dry matter accumulation (g) were reduced significantly under late planting (P2)”
e1“A field experiment on rice”
Claim · model-written summary
Grain and straw yield rose with N level, significantly through 90 kg ha-1.
- Taxon
- riceOryza sativae0
- Treatment
- increase in N levele0
- Outcome
- yield (grain and straw)e0
- Direction
- increasede0
- Qualifier
- up to 90 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield (grain and straw) of the rice crop increased with each successive increase in N level, although the response was only significant up to 90 kg ha-1”
Claim · model-written summary
Planting time and N level significantly interacted for grain yield.
- Taxon
- riceOryza sativae1
- Treatment
- planting time and N levelse0
- Outcome
- grain yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction between planting time and N levels was found to be significant in terms of grain yield”
e1“A field experiment on rice”
Claim · model-written summary
For timely transplanted rice, 90 kg ha-1 N was sufficient.
- Taxon
- riceOryza sativae0
- Outcome
- dose of 90 kg ha-1 was sufficient in timely transplanted rice crops (1st week of July)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dose of 90 kg ha-1 was sufficient in timely transplanted rice crops (1st week of July)”
Claim · model-written summary
Late transplanted rice may need 120 kg ha-1 N for higher yield.
- Taxon
- riceOryza sativae1
- Outcome
- may require a higher dose of N (120 kg ha-1) to get higher yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“late transplanted crops (4th week of July) may require a higher dose of N (120 kg ha-1) to get higher yield”
e1“A field experiment on rice”
Claim · model-written summary
The highest yield occurred with timely planting and 90 kg N ha-1.
- Taxon
- riceOryza sativae1
- Treatment
- 90 kg of N ha-1e0
- Outcome
- yielde0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest yield was obtained when the crop was timely transplanted (1st week of July) and supplied 90 kg of N ha-1”
e1“A field experiment on rice”
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