Normal view MARC view ISBD view

Growth yield and nutrient concentration of two rice varieties treated with four levels of salt and nitrogen / by Hope Gaylan-Patricio

By:

Patricio, Hope Gaylan [author]

Contributor(s):

Felizardo, Bonifacio C [adviser]

Material type: Text

TextLanguage: English Publication details: Los Baños, Laguna : 1984. Cavite State University- Main Campus,Description: 162 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

633.18 P27 1984

Online resources:

Click here to view thesis abstract and table of contents

Abstract: PATRICIO, HOPE GAYLAN, University of the Philippines at Los Banos; January 1984. Growth, Yield, and Nutrient Concentration of Two Rice Varieties Treated with Four Levels of Salt and Nitrogen. Major Professor: Dr. Bonifacio C. Felizardo The effect of NaCl and nitrogen on the soil solution EC and pH; and on the growth, yield, and nutrient concentration of IR52 and IR26 rice varieties were studied in a pdt experiment in the screenhouse of the Department of Soil Science, UPLB, College, Laguna, from December 17, 1982 to April 23, 1983. The results show that the soil solution EC increased, whereas pH decreased with increasing salinity. The different salt levels also significantly delayed flowering and harvesting, depressed growth and yields, and generally increased the concentrations of nitrogen, phosphorus, sodium and chlorine, but decreased potassium concentration in the straw of both varieties. Varietal response to applied nitrogen, however, differed. In terms of their straw yield, IR52 responded to the application of 90 kg N/ha whereas IR26, to 135 kg N/ha application. Furthermore, fertilization with 90 and 135 kg N/ha increased the concentrations of nitrogen in the root and of potassium and sodium in the straw of IR52. The same nitrogen levels increased the concentrations of phosphorus in the grain and of potassium in the straw of IR26. The highest nitrogen rate (135 kg N/ha) increased chlorine concentration in the grain of IR52, but decreased that of IR26.

Average rating: 0.0 (0 votes)

Holdings ( 1 )
Title notes ( 4 )

Holdings
Item type	Current library	Collection	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	633.18 P27 1984 (Browse shelf(Opens below))		Link to resource	Room use only	T-1574		00002398

Thesis (M.S. - - Soil Science) University of the Philippines, College, Laguna.

Includes bibliographical references.

PATRICIO, HOPE GAYLAN, University of the Philippines at Los Banos; January 1984. Growth, Yield, and Nutrient Concentration of Two Rice Varieties Treated with Four Levels of Salt and Nitrogen. Major Professor: Dr. Bonifacio C. Felizardo

The effect of NaCl and nitrogen on the soil solution EC and pH; and on the growth, yield, and nutrient concentration of IR52 and IR26 rice varieties were studied in a pdt experiment in the screenhouse of the Department of Soil Science, UPLB, College, Laguna, from December 17, 1982 to April 23, 1983.

The results show that the soil solution EC increased, whereas pH decreased with increasing salinity. The different salt levels also significantly delayed flowering and harvesting, depressed growth and yields, and generally increased the concentrations of nitrogen, phosphorus, sodium and chlorine, but decreased potassium concentration in the straw of both varieties.

Varietal response to applied nitrogen, however, differed. In terms of their straw yield, IR52 responded to the application of 90 kg N/ha whereas IR26, to 135 kg N/ha application.

Furthermore, fertilization with 90 and 135 kg N/ha increased the concentrations of nitrogen in the root and of potassium and sodium in the straw of IR52. The same nitrogen levels increased the concentrations of phosphorus in the grain and of potassium in the straw of IR26. The highest nitrogen rate (135 kg N/ha) increased chlorine concentration in the grain of IR52, but decreased that of IR26.

Submitted to the University Library 01/07/1994 T-1574