Ridge tillage is likely better than no tillage for 14-year field experiment in black soils: Insights from a 15 N-tracing study

2018 ◽  
Vol 179 ◽  
pp. 38-46 ◽  
Author(s):  
Siyi Liu ◽  
Xiaoping Zhang ◽  
Aizhen Liang ◽  
Jinbo Zhang ◽  
Christoph Müller ◽  
...  
Keyword(s):  
Field Experiment ◽  
No Tillage ◽  
Better Than ◽  
Ridge Tillage

scholarly journals Performance of lentil varities as influenced by different Rhizobium innoculations

2015 ◽  
Vol 17 (1) ◽  
pp. 41-46 ◽  
Author(s):  
MA Haque ◽  
P Bala ◽  
AK Azad
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Mixed Culture ◽  
Crop Residue ◽  
Crop Residues ◽  
Rhizobium Strain ◽  
Rhizobium Inoculation ◽  
Uninoculated Control ◽  
Phosphorus And Potassium ◽  
Better Than

A field experiment was conducted at the farm of Bangladesh Agricultural University, Mymensingh during November 2009 to March 2010 to study the response of three lentil varieties (viz., BARI Masur-1, BARI Masur-2 and BARI Masur-3) to Rhizobium inoculations to yield. There were three Rhizobium inoculants (Rhizobium strain BINA L4, Rhizobium strain TAL 640, and mixed culture) with uninoculated control and urea @ 50 kg ha-1. Phosphorus and potassium @ 26 kg P ha-1from TSP and 33 kg K ha-1 from MP were used as basal. It was observed that Rhizobium inoculation alone increased plant height, grain yield and crop residues yield of plant significantly compared to uninoculated control. Local inoculants BINA L4 performed better than the exotic culture TAL 640 in respect of yield. 50 kg urea ha-1 also recorded better results than control but not superior to any of the inoculation treatments. The highest seed (1,565 kg ha-1) and crop residue yields (3,303 kg ha-1) were recorded from the lentil variety BARIMasur-3 inoculated with mixed culture.Bangladesh Agron. J. 2014, 17(1): 41-46

Alfalfa Management in No-tillage Corn

2006 ◽  
Vol 20 (1) ◽  
pp. 86-89 ◽  
Author(s):  
Scott Glenn ◽  
R. David Meyers
Keyword(s):  
The Other ◽  
Corn Yield ◽  
No Tillage ◽  
No Till ◽  
Alfalfa Hay ◽  
Better Than

Glyphosate-resistant corn was no-till planted into alfalfa that was in the early bud stage (UNCUT) or had been cut 3 to 4 d earlier and baled for hay (CUT). Alfalfa control and corn yield were measured in nontreated plots as well as plots treated with glyphosate alone or tank-mixed with 2,4-D or dicamba applied at planting (AP) or POST. Alfalfa control was greater for all AP treatments of UNCUT compared to CUT alfalfa. Glyphosate plus dicamba applied AP controlled alfalfa better than the other AP treatments resulting in increased corn yield compared with other AP treatments. Postemergence applications of glyphosate alone or tank-mixed with 2,4-D or dicamba controlled alfalfa better 6 weeks after treatment than AP applications of the same herbicides; however, corn yield for AP treatments were similar or greater than the yield of POST applications of the same herbicides. Corn yield averaged 13% higher following herbicide applications to UNCUT compared with CUT alfalfa, so the value of alfalfa hay must be weighed against the loss of corn yield when making decisions concerning the management of an alfalfa–corn rotation.

Nitrogen assimilation and dissimilation in five genotypes of Brachiaria spp.

1981 ◽  
Vol 59 (8) ◽  
pp. 1475-1479 ◽  
Author(s):  
Pedro Antonio A. Pereira ◽  
Johanna Döbereiner ◽  
Carlos A. Neyra
Keyword(s):  
Nitrate Reductase ◽  
Field Experiment ◽  
Nitrogen Assimilation ◽  
Nitrogenase Activity ◽  
Nitrate Accumulation ◽  
Brachiaria Ruziziensis ◽  
Intact Soil ◽  
Nr Activity ◽  
Better Than ◽  
Nitrate Fertilization

Five genotypes of Brachiaria spp. were planted in a field experiment with and without nitrate fertilization. Nitrogen metabolism was evaluated by measurements of nitrate reductase (NR) activity in leaves, nitrate accumulation in stems, and nitrogenase activity and dentrification in intact soil–plant cores. There were differences between genotypes in all parameters and a tendency was observed for genotypes with high NR activity and nitrate accumulation to have low nitrogenase activity and vice versa. Brachiaria radicans (Tanner grass) was representative for the first type and B. ruziziensis (CPI 30623) for the second. Denitrification reached 7% of the applied N within 63 h and was lowest in Tanner grass and highest in B. brizantha (FL 902-4). Brachiaria ruziziensis (CPI 30623) plants were able to withstand N stress better than B. radicans as a consequence, possibly, of differences in nitrogenase activity.

scholarly journals Tillage Variables for Peanut Production

1988 ◽  
Vol 15 (2) ◽  
pp. 94-97 ◽  
Author(s):  
D. L. Colvin ◽  
B. J. Brecke ◽  
E. B. Whitty
Keyword(s):  
Field Experiments ◽  
Sandy Loam ◽  
Surface Preparation ◽  
Conventional Tillage ◽  
Soil Disturbance ◽  
Growth And Yield ◽  
No Tillage ◽  
Minimum Tillage ◽  
Peanut Production ◽  
Better Than

Abstract Effects of minimum tillage (MT) production techniques on peanut (Arachis hypogaea L.) root growth and yield were unknown. Field experiments were therefore conducted during 1984 near Williston and Marianna, FL and during 1985 near Williston and Jay, FL to evaluate effects of surface and subsurface tillage on peanut production. Soil types were a Zuber loamy sand (fine, mixed hyperthermic Ultic Hapludalf) at Williston, a Chipola sandy loam (loamy, siliceous, thermic Arenic Hapludult) at Marianna, and a Red Bay sandy loam (fine, loamy, siliceous, thermic Rhodic Paleudult) at Jay. The Sunrunner peanut cultivar was planted using a modified twin 23 cm row spacing and seeded at a rate of 140 kg/ha. Eight tillage systems that included combinations of conventional tillage, strip-tillage, and no-tillage with and without subsoiling or subsurface slitting were evaluated. Peanuts germinated and grew well except in no-tillage plots that received no subsurface tillage. Without surface or subsurface tillage there was not sufficient soil disturbance to insure proper seed-soil contact or seed cover. Generally, plots that received some degree of conventional tillage yielded better than plots with no surface preparation (4090 vs. 3760 kg/ha avg.). Minimum tillage plots yielded numerically less than conventional plots but in only a few cases were significant differences in yield noted. At most locations, minimum tillage plots that received no subsurface tillage developed a “lazy root syndrome” in which the few roots produced were quite shallow and grew near the soil surface. These treatments yielded less (3680 vs. 4010 kg/ha avg.) than those with conventional seedbed preparation or the minimum tillage treatments receiving subsurface tillage. Root strength and penetration measurements roughly reflect the same trends as peanut yields. The slit-tillage system resulted in peanut yields equal to or better than those obtained with chisel point subsoiling. Slitter wear and breakage problems were encountered but overall, the subsurface slit system appears to be a functional alternative to chisel point subsoiling.

Criteria for Scheduling the Irrigation of wheat

1981 ◽  
Vol 17 (2) ◽  
pp. 157-162 ◽  
Author(s):  
R. D. Misra ◽  
P. C. Pant
Keyword(s):  
Soil Moisture ◽  
Field Experiment ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Sandy Loam ◽  
Leaf Water ◽  
Pan Evaporation ◽  
Loam Soil ◽  
Moisture Conditions ◽  
Better Than

SUMMARYA field experiment evaluating criteria for scheduling wheat irrigation was conducted from 1975 to 1977 in a sandy loam soil with treatments scheduled according to physiological stages, soil moisture conditions, pan evaporation and leaf water potential. Grain and straw yields, spikes/m, fertile spikelets/spike and number and weight of grains/spike were significantly influenced by treatments. Irrigation based on leaf water potential was as good as when based on physiological stages or soil moisture, and the use of pan evaporation was no better than other methods of scheduling.

scholarly journals Effects of ZAI (PIT PLANTING) and Different Manure Rates on the Growth and Yield of Sorghum

2021 ◽  
Vol 9 (10) ◽  
pp. 21-25
Author(s):  
Yakaka Kundili Mustapha
Keyword(s):  
Field Experiment ◽  
Sea Level ◽  
Agricultural Production ◽  
Block Design ◽  
Arid Land ◽  
Growth And Yield ◽  
Cow Dung ◽  
Randomized Complete Block Design ◽  
Better Than

Abstract: A field experiment was conducted at Jimtilo village along Maiduguri Jos/Kano road geographically located latitude 11o 501 5811North12o 561 2311 East above sea level. The experiment was conducted to determine the effect of Zai (pit planting) and different manure rate on growth and yield of sorghum. Randomized Complete Block Design (RCBD) replicated 3 times and consisted of 4 levels of treatments of 0, 1 ton/ha, 2ton/ha and 3ton/ha of manure (cowdung). The result of the experiment indicated that there was significant (p< 0.05) difference among and between treatments used. It was further observed that 3ton/ha manure applied gave significantly (p< 0.05) higher yield and performed better than all other treatments. The control however,gave the least value as all other treatments performed better than the control. It is therefore recommended that the application of 3 ton/ha should be adopted by farmers practicing pit planting or reclaiming arid land for sustainable agricultural production. Keywords: zai (pit planting), manure, cow dung, growth and yield.

The Influence of Herbicide Formulation on Weed Control in Four Tillage Systems

Weed Science ◽  
1989 ◽  
Vol 37 (2) ◽  
pp. 239-249 ◽  
Author(s):  
Michael D. Johnson ◽  
Donald L. Wyse ◽  
William E. Lueschen
Keyword(s):  
Weed Control ◽  
Production Systems ◽  
No Tillage ◽  
Tillage Systems ◽  
Tillage System ◽  
Corn Residue ◽  
Chisel Plow ◽  
Preemergence Herbicides ◽  
Moldboard Plow ◽  
Ridge Tillage

The objectives of this research were to compare the weed control efficacy of liquid, granular, and microencapsulated formulations of preemergence herbicides in moldboard plow, chisel plow, ridge tillage, and no-tillage corn and soybean production systems, and to determine whether herbicide formulation can influence herbicide interception and retention on surface corn residue. Common lambsquarters populations were threefold higher in corn than in soybeans. A mixed population of giant foxtail and green foxtail was highest in the chisel plow and lowest in the ridge tillage system as were total weed numbers. Percent weed control was not influenced by tillage when considered across all herbicide treatments. Weed control was not influenced by herbicide formulation in the moldboard plow, chisel plow, or ridge tillage systems, but granular herbicide applications provided better weed control than liquid applications in the no-tillage system and across various rates of corn residue in an experiment with no tillage variables. Two- to threefold less granular-applied herbicide was intercepted by surface corn residue at the time of application compared to liquid-applied herbicide. Increasing amounts of postapplication rainfall decreased the difference among formulations with regard to both total soil reception of the herbicide and resultant weed control. There was no consistent advantage for the microencapsulated formulation over the other herbicide formulations. Surface corn residue controlled many weeds without the aid of a herbicide and actually contributed to overall weed control even where herbicides were applied. This suggests that the binding of preemergence herbicides on surface crop residue may not be the cause of weed control failures in reduced-tillage systems as is often assumed to be the case.

Yellow lupin (Lupinus luteus) tolerates waterlogging better than narrow-leafed lupin (L. angustifolius) III. Comparison under field conditions

2000 ◽  
Vol 51 (6) ◽  
pp. 721 ◽  
Author(s):  
C. L. Davies ◽  
D. W. Turner ◽  
M. Dracup
Keyword(s):  
Field Experiment ◽  
Western Australia ◽  
Dry Weight ◽  
Similar Rate ◽  
Field Conditions ◽  
Lupinus Luteus ◽  
Root Production ◽  
Yellow Lupin ◽  
The Impact ◽  
Better Than

This study determined whether the tolerance of yellow lupin to waterlogging, observed in experiments in controlled environments, occurs under field conditions. Of particular interest is the impact of waterlogging on the distribution of roots because lupin is exposed to terminal drought in the south of Western Australia, which in itself can have a profound effect on yield. A field experiment was undertaken in the central grain-growing region of Western Australia near Beverley using hydraulically isolated plots to impose and remove waterlogging in a duplex soil. The responses of root and shoot growth of narrow-leafed and yellow lupin to waterlogging in the field were similar to those observed in the controlled environment experiments. In the field experiment, waterlogging had no effect on seed yield of yellow lupin but reduced it by 61% in narrow-leafed lupin. Waterlogging more than halved the dry weight of narrow-leafed lupin but reduced it by only 19% in yellow lupin. In yellow lupin, yield was 3.4 t/ha with waterlogging and 3.8 t/ha without waterlogging, compared with 1.4 t/ha with waterlogging and 3.5 t/ha without waterlogging in narrow-leafed lupin. Waterlogging had no effect on the harvest index of yellow lupin (0.26) but reduced it from 0.36 to 0.31 in narrow-leafed lupin. The larger effect of waterlogging on the yield of narrow-leafed lupin was mainly attributable to fewer pods. Net root growth ceased during waterlogging in both species. After waterlogging, roots of yellow lupin grew at a similar rate to the controls, whereas roots of narrow-leafed lupin grew at a much slower rate than the controls. Waterlogging halved the root density of yellow lupin at 25 cm depth and almost eliminated the roots of narrow-leafed lupin at this depth. After waterlogging, root production in the surface 10 cm increased to about 0.5 cm/cm 3 in yellow lupin but to 0.2 cm/cm 3 in narrow-leafed lupin. At depth (>20 cm), roots of waterlogged yellow lupin continued to grow while those of waterlogged narrow-leafed lupin grew little, if at all. Yellow lupin tolerated waterlogging in the field better than narrow-leafed lupin because it re-established its root system at depth after waterlogging was removed and it produced more fertile pods.

Effects of mulch type and depth on the colonization of habitat patches by soil and litter arthropods

2009 ◽  
Vol 15 (3) ◽  
pp. 197 ◽  
Author(s):  
Akihiro Nakamura ◽  
Carla P. Catterall ◽  
Chris J. Burwell ◽  
Roger L. Kitching ◽  
Alan P. N. House
Keyword(s):  
Field Experiment ◽  
Forest Restoration ◽  
Habitat Patches ◽  
Eastern Australia ◽  
Different Types ◽  
Colonization Patterns ◽  
Better Than

Mulch is widely used to encourage establishment and growth of replanted vegetation in forest restoration. The presence of mulch may also benefit soil and litter dwelling arthropods, but little is known about how recolonizing arthropods respond to different types and quantities of mulch used in forest restoration. We employed a manipulative field experiment to assess the effects of mulch type and depth on the colonization patterns of ants and other soil and litter arthropods in created habitat patches. Experimental habitat patches of 2.5 m x 2.5 m were established by adding sterilized hay (a conventionally used mulching material) or forest woodchip (a structurally more complex alternative) at two depths (shallow 3?5 cm, deep 10?15 cm) to create conditions similar to those during the initial stages of rainforest restoration. These were deployed at five sites adjacent to rainforest remnants on the Maleny plateau of subtropical eastern Australia. Despite its simple composition, hay performed better than woodchip in facilitating colonization by arthropods characteristic of rainforest. Shallow hay was favored by rainforest-dependent ant species. Although the results supported the use of hay over woodchip as habitat for rainforest arthropods, neither hay nor woodchip excluded arthropods characteristic of pasture.

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