INTERACTION EFFECT OF BARNYARDGRASS (ECHINOCHLOA CRUS - GALLI) DENSITIES AND DIFFERENT LEVELS OF NITROGEN FERTILIZER APPLICATION ON GROWTH AND YIELD OF RICE IN KUSHKAK, FARS PROVINCE

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

KAZEMEINI S.A.; GHADIRI H.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF PLANT PATHOLOGY Year:2005 | Volume:41 | Issue:1 Page(s): 95-106

Download Full-Text

Persian Verion

View:

946

Download:

Cites:

Information Journal Paper

Title

INTERACTION EFFECT OF BARNYARDGRASS (ECHINOCHLOA CRUS - GALLI) DENSITIES AND DIFFERENT LEVELS OF NITROGEN FERTILIZER APPLICATION ON GROWTH AND YIELD OF RICE IN KUSHKAK, FARS PROVINCE

Author(s)

KAZEMEINI S.A. | GHADIRI H. | Issue Writer Certificate

Keywords

COMPETITIONQ3

ECHINOCHLOA CRUSS-GALLIQ3

NITROGENQ2

PLANT DENSITYQ4

Abstract

Competitive interactions of rice (Oryza sativa L.) and barnyardgrass (Echinochloa Crusgalli) in relation to variation in weed densities ( 10, 20, 30 and 40 plant /m2)were determined in the field under irrigation and four levels of NITROGEN application (0, 40, 80, and 120kg/ ha) and two rice plant spacings (20×20, 25×25 cm). The experiment was conducted at the experimental station of the college of agriculture, Shiraz University at Kushkak in 1998.Analysis of variance was conducted for each measured variable for all plantings as a splits plot based on RCBD with three replications. The main factor was four levels of N application, and the sub factor was two rice plant spacings and the sub-sub factor was different weed densities. Results indicated that rice grain yield was decreased as barnyardgrass per unit area increased. Among yield components, the number of panicles per plant and the number of seeds increased significantly. Rice grain yield increased by increasing NITROGEN rate, but there was no significant difference between 80 and 120 kg N ha-1 .This means that the efficiency of NITROGEN use at 120 kg N ha-1 has diminished. The increase of Echinchloa crus-galli density has reduced the use efficiency of the excess NITROGEN in rice. Therefore, increase in N-rate not only cannot diminish the effect of weed COMPETITION but also emphasizes the weed COMPETITION strength over the crop. In fact the reduction in rice grain yield was more under the influence of weed density as compared to the NITROGEN fertilizer.

Cites

No record.

References

No record.

Cite

APA: Copy

KAZEMEINI, S.A., & GHADIRI, H.. (2005). INTERACTION EFFECT OF BARNYARDGRASS (ECHINOCHLOA CRUS - GALLI) DENSITIES AND DIFFERENT LEVELS OF NITROGEN FERTILIZER APPLICATION ON GROWTH AND YIELD OF RICE IN KUSHKAK, FARS PROVINCE. IRANIAN JOURNAL OF PLANT PATHOLOGY, 41(1), 95-106. SID. https://sid.ir/paper/48154/en

Vancouver: Copy

KAZEMEINI S.A., GHADIRI H.. INTERACTION EFFECT OF BARNYARDGRASS (ECHINOCHLOA CRUS - GALLI) DENSITIES AND DIFFERENT LEVELS OF NITROGEN FERTILIZER APPLICATION ON GROWTH AND YIELD OF RICE IN KUSHKAK, FARS PROVINCE. IRANIAN JOURNAL OF PLANT PATHOLOGY[Internet]. 2005;41(1):95-106. Available from: https://sid.ir/paper/48154/en

IEEE: Copy

S.A. KAZEMEINI, and H. GHADIRI, “INTERACTION EFFECT OF BARNYARDGRASS (ECHINOCHLOA CRUS - GALLI) DENSITIES AND DIFFERENT LEVELS OF NITROGEN FERTILIZER APPLICATION ON GROWTH AND YIELD OF RICE IN KUSHKAK, FARS PROVINCE,” IRANIAN JOURNAL OF PLANT PATHOLOGY, vol. 41, no. 1, pp. 95–106, 2005, [Online]. Available: https://sid.ir/paper/48154/en

Related Journal Papers