Abstract
The effect of a weed-free fallow and short- and medium-duration pigeon pea (Cajanus cajan cv. ICPL 87 and ICPL 6, respectively) in the first year's growing season on yield and N response of a succeeding sorghum cv. CSH6 crop on a Vertisol under dryland conditions in India was examined. In the second year, a sorghum crop was grown on all the treatments with four rates of applied N (0, 30, 60, and 90 kg N ha-1 as urea). The response of sorghum to N depended on the preceding crop. Weed-free fallow gave the largest grain and straw yield of sorghum without applied N, which was significantly higher than the yields obtained from other treatments with no added N. Both short- and medium-duration pigeon pea had a non-significant residual N effect on the yield and N uptake of the succeeding sorghum crop. Mineral N accumulated in the weed-free fallow was significantly higher than that accumulated in the other preceding crop treatments, and this significantly influenced sorghum grain and straw yields, uptake of N, and response to zero and 30 kg N ha-1 applied in the succeeding season.
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Claims 5
Claim · model-written summary
Weed-free fallow produced the highest sorghum grain and straw yields without applied nitrogen.
- Treatment
- Weed-free fallowe0
- Outcome
- grain and straw yield of sorghume0
- Direction
- significantly highere0
- Qualifier
- without applied Ne0
- Comparator
- other treatments with no added Ne0
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed-free fallow gave the largest grain and straw yield of sorghum without applied N, which was significantly higher than the yields obtained from other treatments with no added N.”
Claim · model-written summary
The short- pigeon pea preceding crop had a non-significant residual nitrogen effect on sorghum yield and nitrogen uptake.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both short- and medium-duration pigeon pea had a non-significant residual N effect on the yield and N uptake of the succeeding sorghum crop.”
Claim · model-written summary
The medium-duration pigeon pea pigeon pea preceding crop had a non-significant residual nitrogen effect on sorghum yield and nitrogen uptake.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both short- and medium-duration pigeon pea had a non-significant residual N effect on the yield and N uptake of the succeeding sorghum crop.”
Claim · model-written summary
Mineral nitrogen accumulated more in weed-free fallow than other preceding treatments.
- Treatment
- weed-free fallowe0
- Outcome
- Mineral N accumulatede0
- Direction
- significantly highere0
- Comparator
- other preceding crop treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mineral N accumulated in the weed-free fallow was significantly higher than that accumulated in the other preceding crop treatments, and this significantly influenced sorghum grain and straw yields, uptake of N, and response to zero and 30 kg N ha-1 applied in the succeeding season.”
Claim · model-written summary
The higher mineral nitrogen in fallow significantly influenced sorghum grain and straw yields, nitrogen uptake, and response to zero and 30 kg N ha-1.
- Treatment
- weed-free fallowe0
- Outcome
- sorghum grain and straw yields, uptake of N, and response to zero and 30 kg N ha-1e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mineral N accumulated in the weed-free fallow was significantly higher than that accumulated in the other preceding crop treatments, and this significantly influenced sorghum grain and straw yields, uptake of N, and response to zero and 30 kg N ha-1 applied in the succeeding season.”
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