Vergara - 1976 - Physiological and morphological adaptability of ri

NITROGEN RESPONSE OF RICE IN TROPICAL (TONDIIIONS 537
REFERENCES
ANDEN, ‘l1. and R. BARKER. 1973. Changes in rice farming in selected areas of Asia. Paper
presented at a Saturday seminar. December l. 1973. lntemational Rice Research Institute.
Los Bafios. Philippines. (mimeo)
BEACHELL. H. M.. and P. R. JENNINGS. 1964. Need for modification of plant type. Pages 29-35
in Symposium on the mineral nutrition of the rice plant. The Johns Hopkins Press. Baltimore,
.\rlcl.
DE DATTA. S. K. 1973. principles and practice of rice cultivation under tropical conditions.
Asian-Pacific Food and Fertilizer Technology Center (ASPAC). Extension Bull. 33. 28 p.
DE DATTA. S. K. 1974. Weed control in rice: present status and future challenge. Philipp.
Weed Sci. Bull. 111-16.
DE DATTA, S. 1x1. E. L. ARAGON, and J. A. MALABLYYOC. 1974. Varietal differences in and cultural
practices for upland rice. Seminar proceedings on rice breeding and varietal improvement.
West Africa Rice Development Association (WHRDA). Monrovia. January 15-20.
1973. 1:35-73.
DF. DATTA. S. KT. and R. BARKER. I968. Economic analysis of experimental results in ricc
production. Philipp. Econ. J. 71162-183.
D15 D.~\'I'I'A. S. K“ and H. M. BEACHELL. 1972. Varietal response to some factors affecting production
of upland rice. Pages 685-700 m International Rice Research Institute. Rice breeding.
Los Bafios. Philippines.
DE DATTA S. Ii... J. C. Moosiaiv. and R. S. DAYRIT. 1966. Nitrogen response and yield potential
of some varietal types in the tropics. Int. Rice Comm. Newsl. 15:16-27.
DE DATtA. S. KY. and V. P. SHARMA. 1968. Rice cultural practices. Pages 61-77 m A. Etfect of
varietal type. season, and management level on the nitrogen response of indica rice. Proceedings
and papers. fourth seminar on economic and social studies (rice production). I.os
Bafios, Philippines. October 7-11. 1968.
DE DATTA. S. R. A. C. TAURO. and S. N. BALAOING. I968. EtTcct of plant type and nitrogen
level on the growth characteristics and grain yield of indica rice in the tropics. Agron. J.
60:643-647.
DE DATTA. S. K. and B. S. VERGARA. 1975. Climates of upland rice regions. Pages 14-39 m
Inteniational Rice Research Institute. lvlajor research in upland rice. Los Bafios. Philippines.
DE DATT-x S. 1i. and P. M. ZARATE. 1970. Environmental conditions afiecting the growth
characteristics. nitrogen response and grain yield of tropical rice. Biometeorology 4(1):7l-
89.
EVANS. 1.. T. I972. Storage capacity as limitation on grain yield. Pages 499-511 in lntemationa]
Rice Research institute. Rice breeding. Los Bafios. Philippines.
FURul. H. 1971. Environmental dctemiinations atfecting the potential dissemination of high
yielding varieties of rice. Conference on agriculture and economic development, Tokyo
and Hakone, 1971. lmimeo.)
Gohtl-ZZ. K. A. 1974. The use of field plot technique in quantifying yield constraints in
farmers fields. Paper presented at the International Rice Research Conference. International
Rice Research Institute. April 22 25. 1974. (mimeo)
IRRI |lnt. Rice Res. Inst]. 1966. Annual report 1966. Los Bafios. Philippines. 302 p.
IRRI [Int Rice Res. lnst.]. 1972. Annual report for 1971. Los Bafros, Philippines. 238 p.
IRRI [Int Rice Res. Inst]. 1974. Annual report for 1973. I.os Bafios, Philippines. 266 p.
JANA, R. IL. and S. K. DE DATTA. 1971. Effects of solar energy‘ and soil moisture tension on
nitrogen response of upland rice. Pages 487-497 in Proceedings of international symposium
on soil fertility evaluation. Indian Agric. Res. Inst. New Delhi. India.
NIONTAFIO. C. B.. and R. BARKER. 1974. Economic rclums from fenilizer application in tropical
rice in relation to solar energy level. Philipp. Econ. J. 13:27-40.
hltlottaw‘. J. C.. P. G. BALDAZO. and L. LUCAS. 1967. Eflects of ripening period environment
on yields of tropical rice. Pages 18-25 m Symposium on problems in development and
ripening of rice grain. 11th Pacific Science Congress, Tokyo. Int. Rice Comm. Newsl.
(Spec. Issue)
h'I(Jl'Jltl.-\\\’, J. C.. and B. S. VERGARA. I964. The environment oftropieal rice production. Pages
3-13 m lt-lincral nutrition of the rice plant. The Johns Hopkins Press. Baltimore. .\-ld.