How extensive are yield declines in long-term rice-wheat experiments in Asia / (Record no. 9003)
| 000 -LEADER | |
|---|---|
| fixed length control field | 01891nam a22001457a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20210518121344.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 210518b ||||| |||| 00| 0 eng d |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | e-book (MDP) |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Ladha, J. K. |
| 245 ## - TITLE STATEMENT | |
| Title | How extensive are yield declines in long-term rice-wheat experiments in Asia / |
| Statement of responsibility, etc | J.K. Ladha |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Sri Lanka: |
| Name of publisher, distributor, etc | Aditi Mukherjia and Charlotte de Fraiturec, |
| Date of publication, distribution, etc | 2016. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 7 p. : |
| Other physical details | ill. ; |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Yield stagnation has set in the rice-wheat system in all the LTEs and decline in some LTEs,<br/>particularly in rice. It is difficult to attribute any single reason for this decline. The reasons<br/>may be more location-specific. Depletion in soil nutrients, reduced availability of P, delay in<br/>planting, decrease in solar radiation and higher temperatures may be the causes of the<br/>decline in some locations. Depletion of soil K seems to be a general cause.<br/>The main bottleneck in the identification of specific reasons for declining yield trends can<br/>only be identified if historical soil and plant samples are available for analysis. Therefore,<br/>more detailed data collection and archives of soil and plant samples should be determined<br/>to find out this cause-and-effect relationship.<br/> Greater stability in wheat yields does not mean conditions are favorable for wheat.<br/>Yields are still below potential.<br/> Assessment of pest and disease pressures and interactions with nutrient management is<br/>essential.<br/> Greater attention should be given to the role of organic matter in rice-wheat system.<br/> New experiments to assess long-term effects of zero-tillage and reduced tillage<br/>practices are required to probe further to this phenomenon.<br/> Accurate assessment of nutrient budgets is required. Non-nutritional benefits of some<br/>of the nutrients need further study.<br/> More experiments with residue management are needed. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | E-Book |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Home library | Current library | Date acquired | Total Checkouts | Full call number | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| College of Natural Resources | College of Natural Resources | 18/05/2021 | e-book (MDP) | 18/05/2021 | 18/05/2021 | E-Book |