Claim · model-written summary
The critical Zn level in middle leaves for 50 per cent pigeonpea response to Zn amendment was 25 mg Zn kg-1.
- Taxon
- pigeonpea
Cajanus cajant0 - Organ / stage
- middle leavese4
- Outcome
- Critical valuese4
- Value
- 25 mg Zn kg−1e4
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Critical values helpful in predicting 50 per cent crop responses to Zn amendment were 0.52 mg kg−1 DTPA soil Zn and 25 mg Zn kg−1 in middle leaves”
t0“pigeonpea”
Title
Response of pigeonpea to applied zinc in Ustifluvent soils of Western Uttar Pradesh
B. K. Dube; Chandra P. Sharma; C. Chatterjee Journal of the Indian Society of Soil Science 2001
Other claims from this paper (14)
- Intervention effect Pigeonpea height, branching and pod production increased most at 5 mg kg-1 Zn added to soil.
- Intervention effect Pigeonpea harvest index increased most at 5 mg kg-1 Zn added to soil.
- Intervention effect Adding 5 mg kg-1 Zn raised DTPA extractable soil Zn from 0.41 to 1.23 mg kg-1.
- Observation Optimal pigeonpea growth occurred at 1.23 mg kg-1 available soil Zn.
- Observation At optimal growth, Zn concentration in middle leaves of pigeonpea was 42.2 mg kg-1.
- Observation The critical DTPA soil Zn value for 50 per cent pigeonpea response to Zn amendment was 0.52 mg kg-1.
- Observation The critical DTPA soil Zn value for top yield was 0.90 mg kg-1.
- Observation The critical leaf Zn value for top yield was 16.8 mg kg-1.
- Observation The deficiency threshold for DTPA soil Zn was 0.70 mg kg-1.
- Observation The deficiency threshold for leaf Zn was 23.6 mg kg-1.
- Observation A DTPA soil Zn value of 5.8 mg kg-1 indicated marked Zn toxicity for top yield.
- Observation A tissue Zn value of 43.4 mg kg-1 in middle leaves indicated marked Zn toxicity for top yield.
- Observation The toxicity threshold for DTPA extractable soil Zn was 3.0 mg kg-1.
- Observation The toxicity threshold for Zn in middle leaves was 36.8 mg kg-1.