Volume 13, Issue 62 (vol. 13, no. 62 2024)                   2024, 13(62): 65-76 | Back to browse issues page


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Alnsrawi A J H, Diyanat M, Ghanbarijahromi M. Effect of different fertilizers on the zinnia (Zinnia elegans J.) yield under conditions of weed competition and non-competition. Plant Process and Function 2024; 13 (62) : 5
URL: http://jispp.iut.ac.ir/article-1-1946-en.html
1- Department of Agricultural Sciences and Food Industries, Science and Research Branch, Islamic Azad University, Tehran, Iran
2- Department of Agricultural Sciences and Food Industries, Science and Research Branch, Islamic Azad University, Tehran, Iran , . Ma_dyanat@yahoo.com
Abstract:   (186 Views)
Weeds are one of the main obstacles to production in agricultural systems. The type of nutrient source and fertilizer can affect the density and flora of weeds, in addition to affecting the growth of agricultural plants. In order to investigate the effect of fertilizer sources on the zinia flower, a split-plot experiment was conducted in the form of a randomized complete block design with three replications on a private farm in Razavi Khorasan province (Khalilabad) in 2023. The investigated factors include two levels of weed presence and absence as the main factor in two levels (presence and absence (hand weeding)) and fertilizer treatment as a secondary factor in four levels (control (no use of fertilizer), fertilizer NPK chemical (according to soil test), vermicompost (5 tons per hectare), and animal manure (cattle manure) (10 tons per hectare). The results showed that all investigated traits of the Ahar flower showed a significant decrease in the presence of weeds. In the presence of weeds, the number of flowers in the cattle manure treatment was the highest (11.71). The consumption of all three sources of fertilizer caused a significant increase in density and dry weight of weeds, but the highest density and dry weight were observed (23.30 plants/m2 and 10.99 g/m2, respectively) in the treatment with chemical fertilizer. The chemical fertilizer treatment had the lowest competition index (0.79), which can be attributed to the higher weed biomass in this treatment. The highest competition index (1.37) belonged to cattle manure, which had a significant difference from other treatments. Therefore, it is recommended to use cattle manure in the field of weed infestation.
Article number: 5
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Type of Study: Research | Subject: Horticulture
Received: 2023/08/6 | Accepted: 2024/05/7 | Published: 2024/10/14

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