scholarly journals Upland rice growth and yield response to weed management practices under rainfed conditions in Morogoro, Tanzania

2017 ◽  
Vol 12 (10) ◽  
pp. 829-840 ◽  
Author(s):  
S. Kolleh David ◽  
P. Sibuga Kallunde ◽  
F. King Charles
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Upland Rice ◽  
Growth And Yield ◽  
Yield Response ◽  
Rice Growth ◽  
Rainfed Conditions

scholarly journals Effect of weed management practices on growth and yield of kharif okra (Abelmoschus esculentus (L.) Moench)

2020 ◽  
Vol 8 (4) ◽  
pp. 3995-4001
Author(s):  
Sadhana Kongala ◽  
Venkateswara Reddy ◽  
Veena Joshi ◽  
Madhavi Molluru ◽  
Ram Prakash
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Abelmoschus Esculentus ◽  
Growth And Yield

Effect of organic sources of nutrients and weed management on weed flora, basmati rice growth and yield in Jammu region

2021 ◽  
Vol 53 (3) ◽  
pp. 238-243
Author(s):  
Ashu Sharma ◽  
Dileep Kachroo ◽  
N.P. Thakur ◽  
Anil Kumar ◽  
Lobzang Stanzen ◽  
...  
Keyword(s):  
Weed Management ◽  
Growth And Yield ◽  
Basmati Rice ◽  
Rice Growth ◽  
Weed Flora

Dry bean (Phaseolus vulgaris) tolerance to imazethapyr

1996 ◽  
Vol 76 (4) ◽  
pp. 915-919 ◽  
Author(s):  
R. E. Blackshaw ◽  
G. Saindon
Keyword(s):  
Phaseolus Vulgaris ◽  
Weed Control ◽  
Seed Yield ◽  
Weed Management ◽  
Seed Weight ◽  
Growth And Yield ◽  
Yield Response ◽  
Dry Beans ◽  
Dry Bean ◽  
Bean Yield

A field study was conducted during 3 yr to determine the growth and yield response of Pinto, Pink Red and Great Northern dry beans to various doses of imazethapyr. Imazethapyr was applied postemergence at 0, 25, 50 75 100, 150, and 200 g ha−1 to each class of dry bean. Results indicated that these four classes of dry beans responded similarly to imazethapyr. Dry bean injury increased and yields were reduced as dose of imazethapyr increased. At the proposed use dose of 50 g ha−1, imazethapyr reduced yield by 5 to 6%. Imazethapyr at 100 g ha−1 reduced dry bean yield by 10 to 12% and delayed maturity by 3 to 4 d. Benefits of superior weed control attained with imazethapyr should be weighed against potential crop injury when growers consider using imazethapyr in their dry bean weed management programs. Key words: Herbicide injury, maturity, seed yield, seed weight

Effect of Land Configuration and Weed Management on Performance of Urdbean [Vigna mungo (L.) Hepper]

2020 ◽  
Author(s):  
P. Venkata Rao ◽  
A. Subbarami Reddy ◽  
M. V. Ramana
Keyword(s):  
Grain Yield ◽  
Weed Management ◽  
Management Practices ◽  
Agricultural Research ◽  
Vigna Mungo ◽  
Growth And Yield ◽  
Research Station ◽  
Marginal Lands ◽  
Yield Attributes ◽  
Plot Design

Background: Blackgram is an important crop among kharif pulses and is usually grown on marginal and sub-marginal lands without proper weed management under rainfed situation. Broad bed furrows had greater influence on plant growth over farmers practice. Weed management through mechanical or manual is normally tedious, labour consuming and costlier. Keeping this in view, the present study was envisaged to investigate integrated effect of land configuration and weed management regimes on productivity of urdbean. Methods: A field experiment was carried out during kharif seasons of 2016 and 2017 at Regional Agricultural Research Station, Lam, Guntur on effect of land configuration and weed management on performance of urdbean (Vigna mungo L.Hepper). The treatments included two land configurations i.e., flat bed and broad bed furrow method allotted as horizontal plots and four weed management practices i.e., weedy check, pendimethalin 30 EC @ 1.0 kg a.i ha-1 PE, imazethapyr 10% SL @ 55 g ha-1 at 15-20 DAS and pendimethalin 30 EC @ 1.0 kg a.i ha-1 PE fb imazethapyr 10% SL @ 55g ha-1 at 15-20 DAS allotted as vertical plots replicated four times in a strip plot design. The comparison of treatment means was made by critical difference (CD) at P less than 0.05 by using standard statistical procedures. Result: Based on the results, it can be concluded broad bed method of land configuration proved its superiority over flat bed method by producing 12.8 per cent higher grain yield besides empowering growth and yield attributes. Among the weed management practices, the highest grain yield (1280 kg ha-1) recorded with pendimethalin 30 EC @ 1.0 kg a.i ha-1 PE fb imazethapyr 10% SL @ 55g ha-1 at 15-20 DAS along with maximum monetary returns and B:C can be recommended for urdbean.

The Effect of Rotation and In-Crop Weed Management on the Germinable Weed Seedbank after 10 Years

Weed Science ◽  
2011 ◽  
Vol 59 (4) ◽  
pp. 553-561 ◽  
Author(s):  
Robert H. Gulden ◽  
Derek W. Lewis ◽  
Jane C. Froese ◽  
Rene C. Van Acker ◽  
Gary B. Martens ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Weed Management ◽  
Management Practices ◽  
Production Systems ◽  
Yield Response ◽  
Environmental Damage ◽  
Long Term Effects ◽  
Community Size ◽  
Herbicide Resistant ◽  
Alternate Control

Agricultural production systems that reduce the use of in-crop herbicides could greatly reduce risks of environmental damage and the development of herbicide-resistant weeds. Few studies have investigated the long-term effects of in-crop herbicide omissions on weed seedbank community size and structure. A crop-rotation study was sampled 10 yr after a strictly annual rotation and an annual/perennial rotation were exposed to different in-crop herbicide omission treatments. In-crop herbicides were applied either in all annual crops (control), omitted from oats only, or omitted from both flax and oats. Seedbank densities were greatest when in-crop herbicides were omitted from flax and oats, and this treatment also reduced crop yield. Shannon-Wiener diversity differed among crops in the annual crop rotation and among herbicide omission treatments in the perennial rotation. Herbicide omissions changed the weed-community structure in flax and in wheat and canola crops in the annual rotation enough to warrant alternate control methods in some treatments. The magnitude of the effects on the seedbank parameters depended largely on the competitive ability of the crop in which herbicides were omitted. No yield response to omitting herbicides in oats indicated that standard weed management practices have reduced weed populations below yield-loss thresholds.

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