The influence of inter-row and intra-row cultivation on the yield of grain sorghum at Katherine, N.T

1962 ◽  
Vol 2 (7) ◽  
pp. 204 ◽  
Author(s):  
LJ Phillips ◽  
MJT Norman
Keyword(s):  
Soil Moisture ◽  
Small Variation ◽  
Grain Sorghum ◽  
Plant Population ◽  
Row Spacing ◽  
Similar Group ◽  
The Mean ◽  
Moisture Conditions

Three experiments concerned with inter-row spacing, plant population, and inter-row cultivation of grain sorghum were carried out at Katherine, N.T., in 1957-58, 1958-59 and 1961-62. In 1957-58 and 1958-59, 7 inch, 18 inch, and 36 inch row spacing, with inter-row cultivation treatments at the wider spacings, were compared at three population lever's. Conflicting responses to row spacing between years were recorded. Interactions between population and row spacing indicated 204 an optimum within-row plant distance OJ' 6-12 inches for all inter-row spacings. At 18 inch and 36 inch raw spacings, one cultivation was beneficial, but not two. In 1961-62, a similar group of row spacing and cultivation treatments WGV compared at a standard within-row plant distance of 9 inches. As a mean of three years, yield differences between 9 inch, 18 inch and 36 inch rows were relatively small. Variation between years was attributed to soil moisture conditions. The mean response to one cultivation in 18 inch and 36 inch rows was approximately 7 per cent.

Row Spacing and Plant Population for Grain Sorghum in the Humid North 1

1964 ◽  
Vol 56 (2) ◽  
pp. 189-191 ◽  
Author(s):  
R. G. Robinson ◽  
L. A. Bernat ◽  
W. W. Nelson ◽  
R. L. Thompson ◽  
J. R. Thompson
Keyword(s):  
Grain Sorghum ◽  
Plant Population ◽  
Row Spacing

scholarly journals Grain Sorghum Response to Row Spacing and Plant Populations in the Texas Coastal Bend Region

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Carlos J. Fernandez ◽  
Dan D. Fromme ◽  
W. James Grichar
Keyword(s):  
Grain Sorghum ◽  
Plant Population ◽  
Growth And Yield ◽  
Row Spacing ◽  
Plant Populations ◽  
Single Row ◽  
Average Rainfall ◽  
Opportune Time ◽  
Lower Plant ◽  
Sorghum Bicolor L

Two grain sorghum (Sorghum bicolor L. Moench) studies were conducted in the Coastal Bend Region of Texas over a two-year period. In one study, sorghum growth and yield were compared when planted in a single row on beds or planted in twin rows on beds with different plant populations under dryland or irrigation. Above average rainfall occurred in May 2000 which resulted in twin rows at any plant population producing higher yields than the single row at lower plant population. In 2001, single-row plantings with either plant population (124,000–160,000 or 161,000–198,000 plants/ha) produced higher yield than twin rows planted at 161,000–198,000 plants/ha. Under irrigation, twin rows planted at 161,000–198,000 plants/ha produced higher yields than single row at the same population; however, no other yield differences were noted when row systems or plant populations were compared. In another study, 38 cm row spacings were compared with 76 cm row spacings under two plant populations. In 2000, when rains fell at an opportune time, no yield differences were noted; however, in 2001 with below average rainfall, the 76 cm plantings at 170,000–200,000 and 210,000–240,000 plants/ha produced higher yield than the 38 cm plantings at those same plant populations.

YIELD AND SEED QUALITY OF SUNFLOWER HYBRIDS IN RESPONSE TO A PAIRED-ROW SEEDING PATTERN

1989 ◽  
Vol 69 (4) ◽  
pp. 1255-1257
Author(s):  
G. H. GUBBELS ◽  
W. DEDIO
Keyword(s):  
Soil Moisture ◽  
Helianthus Annuus ◽  
Seed Quality ◽  
Growth Habit ◽  
Row Spacing ◽  
Helianthus Annuus L ◽  
Moisture Conditions

Four oilseed sunflower (Helianthus annuus L.) hybrids, varying widely in growth habit, were grown with rows uniformly spaced at 45 cm and in a paired-row arrangement, alternating 30 cm with 60 cm, in 1986 and 1987 at Morden, Manitoba. Soil moisture conditions were adequate in both seasons. There were no significant differences in achene yield between the row spacing treatments.Key words: Sunflower, Helianthus annuus L., row spacing, paired rows

The effect of seeding rate and row spacing on yields of Spanish peanuts at Katherine, N.T

1970 ◽  
Vol 10 (42) ◽  
pp. 95 ◽  
Author(s):  
IMW Wood
Keyword(s):  
Soil Moisture ◽  
Unit Length ◽  
Plant Population ◽  
Row Spacing ◽  
Seeding Rate ◽  
Plant Stand ◽  
Lower Plant ◽  
Spanish Peanut

In experiments at Katherine, N.T., yields of the Spanish peanut, variety Spantex, were not increased by sowing in twin rows spaced G inches apart with 3 feet between the pairs of rows, in comparison with normal single rows sown 3 feet apart. Establishment was, however, improved by up to 12 per cent by sowing in twin rows, presumably owing to reduced competition for soil moisture with the lower plant population per unit length of row. Yields were little affected by plant population in the range 40,000-120,000 plants an acre, corresponding to sowing rates of 50 to 200 lb an acre of kernels. In one season a significant increase of 240 lb an acre (9 per cent) of nuts-in-shell was obtained by increasing the sowing rate from 50 to 100 lb an acre. In two other seasons, however, yields were not affected by the change in plant population. Planting on formed beds led to a reduction of G per cent in establishment compared with flat planting; but yields were not affected. The optimum seeding rate for Spantex at Katherine, N.T., is considered to be approximately 50 lb an acre, giving a plant stand of approximately 40,000 plants an acre.

scholarly journals Grain Sorghum Response to Hybrid, Row Spacing, and Plant Populations along the Upper Texas Gulf Coast

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Dan D. Fromme ◽  
Carlos J. Fernandez ◽  
W. James Grichar ◽  
Rick L. Jahn
Keyword(s):  
Sorghum Bicolor ◽  
Gulf Coast ◽  
Grain Sorghum ◽  
Plant Population ◽  
Yield Reduction ◽  
Row Spacing ◽  
Plant Populations ◽  
Texas Gulf Coast ◽  
Net Returns ◽  
Average Rainfall

Grain sorghum (Sorghum bicolorL. Moench) along the upper Texas Gulf Coast is planted at different row spacings, plant populations, and hybrids according to grower preference and location. This study was conducted over a 3-year period (2001 to 2003) to determine the combination of hybrid, row spacing, and plant population on yield and net return per hectare. Below average rainfall for May and June occurred in 2002 and 2003 which resulted in lower yields than 2001. In 2001 and 2003, Dekalb (DK) 54 generally produced higher yields than Asgrow (A) 571 on the 51 cm row spacing. In 2002, no differences in grain sorghum yield were found when comparing both hybrids, plant populations, or row spacing with the exception of A 571 planted at 148,000 plants/ha on 102 cm centers which resulted in a yield reduction of at least 25%. When net returns were compared regardless of year or rainfall received, net dollar value per hectare tended to be higher for the 51 cm row spacing, especially with A 571.

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