The effect of cultivation and the time of Nitrogen application on yield and weed control in Solanum tubersum var. santeh

Subject Areas : Journal of Plant Ecophysiology

manijeh shamsi ¹ (دانش آموخته دانشگاه آزاد اسلامی اراک)
shahab khaghani ² (Azad University of Arak)
sanam safaei chaei kar ³ (Deylaman Institute for Higher Education)
Mohammad Ali Moshayedi ⁴ (Zarinkhosheh)
Zahra Rafiei Karahroodi ⁵ (Azad University of Arak)
محمود اسلامپور ⁶ (دانش آموخته دانشگاه آزاد اسلامی اراک)

Received: 2016-02-19 Accepted : 2016-07-01 Published : 2018-02-20

Keywords: nitrogen, Cultivation, Non-chemical control, Stable agriculture,

Abstract :

Weeds are one of the main problems in most agricultural ecosystems such as potato. To evaluate the effects of cultivation and the time of Nitrogen application on potato weeds and tuber yield, an experiment was conducted in the form of split plot based on randomized complete blocks design with four replications at Research Fields of Islamic Azad University, Arak, during 2012-13. Treatments include cultivation (non-cultivation, a week after emergence such as once applied cultivation and one and four week after emergence such as twice applied cultivation) as the main plot along with the time of Nitrogen (urea 300 kg/ha) application (once application at the beginning of the season, split and using at the end of the season) as the sub plot. The results showed that cultivation treatment along with Nitrogen application had a significant effects on tuber yield and weeds density, so that once applied cultivation along with Nitrogen application at the beginning of the season led to reduction of weed density and increasing tuber yield by 15.21% and help to non-chemical control of weeds in stable agriculture.

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