1990 Supplement Publications of the International ... - IRRI books

The book provides complete dynamic summary models to simulate
these processes, plus additional formulations whenever interesting
extensions for specific crops are appropriate.
Physiological datatocharacterizespecies are provided for more than
15 croptypes from both tropical and temperate regions. Data to characterize
about 20 different soil types are also included. The accuracy
of weather data required is discussed.
The rice crop and its simulation is emphasized. All models are written
in the simulation language CSMP, and can be run on PCS.
The text and models are supported by exercises (with answers) to
stimulate readers to apply the concepts and models to their own
problems.
IRRl has made a cooperative arrangement with PUDOC Publishing
Co., Netherlands, to distribute paperback copies of the book in Third
World countries.
Monographs
International Rice Research Institute
1987 International Deepwater Rice Workshop
1988.633 pages. 15.2 x 22.8 cm. Paperback. ISBN 971-104-187-1.
HDC $30.00,LDC $8.00 plus airmail ($10.00) or surface mail ($3.00)
postage.
The International Deepwater Rice Workshop yielded a number of
innovative ideas such as additional crops (sunflower, early-maturing
rice, etc.) before, along with, or after deepwater rice; ratooning of
deepwater rice; and use of rice herbage from the deepwater crop.
Also discussed were methods for screening for ufra nematode and
yellow stem borer; and methods for measuring the oxygen, carbon
dioxide, and ethylene contents of floodwater. Basic research on
varietal differences in internode elongation and its mechanism,
physiology, genetics, and measurement were reported.
Socioeconomic issues confronting poor rice cultivators in deepwater
rice areas, especially women, were discussed.
Although deepwater rice is traditionally a monocrop, many participants
from deepwater rice areas expressed a desire to try different
cropping patterns and rice herbage use in farmers' field. Grain yields
have not been substantially raised, but land use efficiency is definitely
increasing, and there is hope for greater productivity from deepwater
ricelands.
IRRl 179