PERFORMANCE AND ECONOMICS OF GROWING MAIZE UNDER ORGANIC AND INORGANIC FERTILIZATION AND WEED MANAGEMENT

被引:0
|
作者
Ali, Abbas [1 ]
Khan, Muhammad Azim [1 ]
Saleem, Ashiq [2 ]
Marwat, K. B. [3 ]
Jan, Abbas Ullah [1 ]
Jan, Dawood [1 ]
Sattar, Shahid [1 ]
机构
[1] Univ Agr, Peshawar, KP, Pakistan
[2] Natl Agr Res Ctr, Islamabad, Pakistan
[3] SBB Univ Sheringal, Upper Dir, KP, Pakistan
关键词
Fertilizers; Maize; Net income; Weeds; Weeding distance; ZEA-MAYS L; GROWTH; HERBICIDES; EFFICACY; RICE;
D O I
暂无
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Weed competition and imbalanced fertilizers are important yield reducing factors in maize. To investigate the impact of weed management and combinations of fertilizers on yield and net income of maize, a field trial was conducted at National Agricultural Research Centre, Islamabad, Pakistan during summer 2014. Randomized complete block design with split-plot arrangement was used with three replications. Four weeds pressures viz. (1) hand weeding at 25 cm on both sides of each row of maize plants, (2) No hand weeding at 25 cm on both sides of maize rows, (3) application of Primextra gold (atrazine plus S-metolachlor) @ 1.44 kg a.i. ha(-1) as pre-emergence and (4) weedy check (control) were assigned to main plots. While different combinations of NPK were assigned to sub plots. Data revealed that dry weed biomass close to maize plants were significantly lower (140.4 kg ha(-1)) as compared to weeds 25 cm away from maize plants (153.2 kg ha(-1)). However, the application of atrazine plus S-metolachlor showed promising results by decreasing the weed biomass (53.6 kg ha(-1)) as compared to 155.6 kg ha(-1) in control. Combination of fertilizers, also significantly affected the weed biomass. As compared to control, all the fertilizers (N, P and K) significantly increased weed biomass. Presence of weeds close to the crop rows, proved more harmful for grain yield of maize. Overall, application of herbicide in combination with NPK showed promising results in term of weed control and grain yield. Net income was higher when herbicide in combination with N, P or NP was used.
引用
收藏
页码:311 / 318
页数:8
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