scholarly journals Labor-saving method for red morningglory (Ipomoea coccinea) control in narrow-row, late-planted soybean

2017 ◽  
Vol 62 (2) ◽  
pp. 25-35
Author(s):  
Masaaki Tachibana ◽  
Jun Kubota ◽  
Gen Ishioka ◽  
Rintaro Okuno ◽  
Kimiyasu Takahashi ◽  
...  
Keyword(s):  
Ipomoea Coccinea ◽  
Narrow Row

INFLUENCE OF METHODS FOR SELECTION OF PLANTS AND WAYS OF SEEDING ON EFFICIENCY OF ORIGINAL SEEDS OF FLAX-DOLGUNETS GRROWING IN PRIMARY SEED BREEDING

2020 ◽  
Keyword(s):  
Seed Yield ◽  
Control Level ◽  
Row Spacing ◽  
High Germination ◽  
Breeding Efficiency ◽  
Flax Seeds ◽  
Narrow Row ◽  
Seed Propagation ◽  
Selection Of

The results of scientific research are presented, which made it possible to develop less labor-intensive methods for selecting flax plants to grow original (updated) seeds. Studies have shown that a positive selection of tall plants of flax, compared with the accepted counterpart (control), increased seed yield 1.7-1.9 times. Moreover, plant homogeneity according to the main characteristics (height and fiber content in the stem) characterizing the varietal quality of grown seeds turned out to be at the control level. A negative selection, involving the removal of atypical plants, provided an increase in the output volume of seeds compared to the control by 3.9-4.1 times. This selection method did not reduce the varietal quality of seed material compared to the accepted analogue. With both selection methods, after combining typical plants, seeds with the same high germination rates were obtained (96-99 %). The breeding efficiency of the grown flax seeds using narrow-row sowing methods is shown. Studies have established that narrow-row sowing of seeds with a row-spacing of 7.5 and 6.25 cm compared with sowing by a wide-row method significantly increased their yield by 2.8-3.0 and 2.3-3.0 kg / ha, respectively. The greatest influence on the formation of seed yield in narrow-row sowing (6.25 cm) was exerted by the method of sowing, the part of which was 76.1 %. As the length of seed propagation of flax in creased (up to the uterine elite 2 years) in narrow-row sowing (6.25 cm) compared to broad-row, there was no decrease in quality indicators - germination and seed strength.

Carbon Source‐Sink Relationships within Narrow‐Row Cotton Canopies 1

Crop Science ◽  
1980 ◽  
Vol 20 (2) ◽  
pp. 208-213 ◽  
Author(s):  
T. A. Kerby ◽  
D. R. Buxton ◽  
K. Matsuda
Keyword(s):  
Carbon Source ◽  
Narrow Row ◽  
Source Sink

Production of Cotton on Narrow Row Spacing

1992 ◽  
Vol 35 (4) ◽  
pp. 1109-1112 ◽  
Author(s):  
J. R. Williford
Keyword(s):  
Row Spacing ◽  
Narrow Row

Weed Control with Reduced Rates of Chlorimuron Plus Metribuzin and Imazethapyr in No-Till Narrow-Row Soybean (Glycine max)

1998 ◽  
Vol 12 (1) ◽  
pp. 32-36 ◽  
Author(s):  
William G. Johnson ◽  
Jeffrey S. Dilbeck ◽  
Michael S. Defelice ◽  
J. Andrew Kendig
Keyword(s):  
Glycine Max ◽  
Weed Control ◽  
Field Studies ◽  
Weed Suppression ◽  
Crop Response ◽  
Soybean Production ◽  
No Till ◽  
Giant Foxtail ◽  
The Difference ◽  
Narrow Row

Field studies were conducted at three locations in 1993 and 1994 to evaluate weed control and crop response to combinations of glyphosate, metolachlor, 0.5 X and 1 X label rates of chlorimuron plus metribuzin applied prior to planting (PP), and 0.5 X and 1 X label rates of imazethapyr applied early postemergence (EPOST) or postemergence (POST) in no-till narrow-row soybean production. Giant foxtail densities were reduced with sequential PP followed by (fb) EPOST or POST treatments. Large crabgrass was reduced equivalently with all herbicide combinations involving chlorimuron plus metribuzin PP fb imazethapyr. Common cocklebur control was variable but was usually greater with treatments that included imazethapyr. Ivyleaf morningglory densities were not reduced with any herbicide combinations. Sequential PP fb EPOST or POST treatments tended to provide slightly better weed suppression than PP-only treatments, but the difference was rarely significant. Soybean yields with treatments utilizing 0.5 X rates were usually equal to 1 X rates.

Temporal Importance of Greater Light Interception to Increased Yield in Narrow‐Row Soybean

1992 ◽  
Vol 84 (4) ◽  
pp. 575-579 ◽  
Author(s):  
J. E. Board ◽  
M. Kamal ◽  
B. G. Harville
Keyword(s):  
Light Interception ◽  
Narrow Row

Weed Management in Ultra Narrow Row Cotton (Gossypium hirsutum)1

2000 ◽  
Vol 14 (1) ◽  
pp. 19-29 ◽  
Author(s):  
A. STANLEY CULPEPPER ◽  
ALAN C. YORK
Keyword(s):  
Gossypium Hirsutum ◽  
Weed Management ◽  
Narrow Row

scholarly journals Evaluation of Narrow Row Soybeans

2010 ◽  
Author(s):  
Ryan Rusk ◽  
Joshua L. Sievers
Keyword(s):  
Narrow Row

scholarly journals Using satellite navigation for seeding of wide-row and narrow-row crops  

2011 ◽  
Vol 57 (Special Issue) ◽  
pp. S7-S13
Author(s):  
M. Macák ◽  
M. Žitňák ◽  
L. Nozdrovický
Keyword(s):  
Crop Production ◽  
Spring Barley ◽  
Satellite Navigation ◽  
Navigation Systems ◽  
Row Crops ◽  
Satellite Navigation System ◽  
Row Crop ◽  
Narrow Row ◽  
Correct Application ◽  
Satellite Navigation Systems

The present paper is aimed at the use of satellite navigation of field machinery during seeding, this operation belonging to the most important field practises. Our attention was focused on the determination of the accuracy of the satellite navigation system based on using the correction signal real-time kinematic and its correct application for planting a wide-row crop (sunflower) and seeding a narrow-row crop (spring barley). The aim of the field experiment was also to specify the level of the necessary accuracy of satellite navigation systems during planting and seeding. The length of seeding/planting equipment was confronted with the accuracy of navigation of individual passes, especially when turning on the headlands. In the conclusion, the importance is highlighted of the automated tractor headland control during satellite navigation of combined field machines in the crop production.

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