Baghestani, M.A., Zand, E., 2002. Directions of weed science. Zeitoon. (In Persian)
2- Baghestani, M.A., Zand, E., Soufizadeh, S., Eskandari, A., Pour Azar, R., Veysi, M., Nasseirzadeh, N., 2007.
Efficacy evaluation of some dual purpose herbicides to control weeds in maize (Zea mays L.). Crop Prot. 26, 936-
942.
3- Bullock, D.G., Nielsen, R.L., Nyquist, W.E.A., 1988. Growth analysis comparison of corn grown in conventional
and equidistant plant spacing. Crop Sci. 28, 254-258.
4- Dalley, C.D., Bernards, M.L., Kells, J.J., 2006. Effect of weed removal timing and row spacing on soil moisture in
corn (Zea mays). Weed Technol. 20, 399-409.
5- Fateh, E., Sharifzadeh, F., Mazaheri, D., Baghestani, M.A., 2006. Evaluation of competition ability between corn
(Zea mays) and lambsquarter (Chenopodium album) influenced by planting pattern and their effect on corn yield
component. Pajouhesh Sazandegi 73, 87-95. (In Persian with English summary).
6- Fernandez, O.N., Vignolio, O.R., Requesens, E.C., 2002. Competition between corn (Zea mays) and bermudagrass
(Cynodon dactylon) in relation to the crop plant arrangement. Agronomie 22, 293-305.
7- Finck, C., 2003. Twin rows take to field. Farm Journal. (Midwest/ Centraledition). Philadelphia, 127: 128-115.
8- Garcya, F.D., Fernandez, M.A., Ali, D.R., Brusco, M.I., 2000. Interaction between narrow row spacing and low
dosages of atrazine on weed control in grain sorghum (Sorghum bicolor) in la pampa, argentina. Abstracts of the
III International Weed Science Congress, Foz do Iguassu, Brazil.
······ y= 7.11+46.19/(1+e(-(x -1.27) /-0.23))
R2= 0.99
–·– y= 10.28+34.58/(1+e(-(x -1.23) /-0.29))
R2= 0.99
— y= 9.24+33.80/(1+e(-(x -1.12) /-0.34))
R2= 0.99
Rates of herbicide (l.ha-1)
Percent Yield loss to complete hand
weeding
126 نشریه بوم شناسی کشاورزی، جلد 1، شماره 1، سال 1388
9- Gibson, K.D., Fischer, A.J., Foin, T.C., 2001. Shading and the growth and photosynthetic responses of ammannia
occinnea. Weed Res. 41, 59-67.
10- Grichard, W.J., Besler, B.A., D., B.K., 2004. Effect of row spacing and herbicide dose on weed control and grain
sorghum yield. Crop Prot. 23, 263-267.
11- Johnson, G.A., Hoverstad, T.R., Greenwald, R.E., 1998. Integrated weed management using narrow corn row
spacing, herbicides and cultivation. Agron J. 90, 40-46.
12- Mennan, H., Ngouajio, M., Isık, D., Kaya, E., 2006. Effects of alternative management systems on weed
populations in hazelnut (Corylus avellana L.). Crop Prot. 25, 91-112.
13- Montazeri, M., Zand, E., Baghestani, M.A., 2005. Weed control in wheat fields of Iran. Iranian research institute of
plant protection. (In Persian).
14- Mosavi, M., 2001. Integrated weed management. Miaad press, Tehran. (in Persian).
15- Porter, P.M., Hicks, D.R., Lueschen, W.E., Ford, J.H., Warnes, D.D., Hoverstad, T.R., 1997. Corn response to row
width and plant population in the northern corn belt. J. Prod. Agr. 10, 293-300.
16- Radosevich, S.R., Holt, J.S., 1984. Weed Ecology: Implications for Vegetation Managgement. John Wiely & Sons,
New York.
17- Rajcan, I., Swanton, C.J., 2001. Understanding maize-weed competition: resource competition, light quality and
whole plant. Field Crop Res. 71, 139-150.
18- Reisinger, P., Lehoczky, E., Komives, T., 2005. Competitiveness and precision management of the noxious weed
Cannabis sativa L. in winter wheat. Commun Soil Sci. Plan. 36, 629-634.
19- Robert, E.N., Hamill, A.S., Swanton, C.J., Tardif, F.J., Sikkema, P.H., 2007. Weed control yield response to
foramsulfuron in corn. Weed Techno. 21, 453-458.
20- Soltani, A., 2006. Re-consideration of Application of Statistical Methods in agricultural researches. Jahad press,
Mashhad. (In Persian).
21- Stewart, G., 2000. Twin row corn. http:/www.ontariocorn.org/feb 2000 art 4.html.
22- Tharp, B.R., Kells, J.J., 2001. Effect of glufosinate-resistant corn (Zea mays) population and row spacing on light
interception, corn yield, and common lambsquarters (Chenopodium album) growth. Weed Technol. 15, 413-418.
23- Tobeh, A., Hashemi dezfooli, S.A., Majidi, A., Roozitalab, M.H., Mazaheri, D., 1998. Effect of common and
minimum tillage systems with nuber of weeding on final density and weed types, quantitative and qualitative yield
of corn. Seed and Plant production Journal 14, 46-65. (In Persian with English summary).
24- Traore, S., Mason, S.C., Martin, A.R., Mortensen, D.A., Spotanski, J.J., 2003. Velvetleaf interference effects on
yield and growth of grain sorghum. Agron. J. 95, 1602-1607.
25- Westgate, M.E., Forcella, F., Reicosky, D.C., Somsen, J., 1997. Rapid canopy closure for maize production in the
northern US corn belt: radiation-use efficiency and grain yield. Field Crop Res. 49, 249-258.
26- Yadavi, A.R., Agha Alikhani, M., Ghalavand, A., Zand, E., 2007. Effect of plant density and planting arrangement
on grain yield and growth indices of corn under redroot pigweed (Amaranthus retoflexus L.) competition.
Pajouhesh Sazandegi 75, 87-95. (In Persian with English summary).
27- Zand, E., Baghestani, M.A., Bitarafan, M., Shimi, P., 2007. A guideline for herbicide in Iran. Jahad press.,
Mashhad. (In Persian)
28- Zand, E., Baghestani, M.A., Soufizadeh, S., Eskandari, A., pourazar, A., Veysi, M., Mousavi, K.S., Barjasteh, A.,
2006. Evaluation of some newly registered herbicieds for weed control in wheat (Triticum aestivum L.) In Iran.
Crop Prot. 10, 1-10.
29- Zimdahl, R., 1993. Fundamental of Weed Science. Academic press, Inc., USA.