Intense Pre

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Intense Pre
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Does anyone have an intense 3-week upper body workout??


I recently jus got the ok from my doctor to play sports again after a 2 month hiatus but, unfortunately, I only have 3 weeks before pre-season football camp at my high school. My coach is mainly all about size and little about speed and explosive strength. I have the speed (4.75 40-yd dash) and im moderately strong for my build (6'0, 150, 125 bench press, 185 squat) but im still thin as toothpick and lost some mass during my hiatus. Does anyone have an intense 3-week upper-body workout cuz I was really hoping i could get some playing time at wide receiver this season.

Well I don't really know many different routines, but you're in luck- I work out my entire upper body with a routine I made that gets everything in the upper body almost every night and I'll post it on here for you.

1st is back:
wide grip chin-ups (assisted or non)
lat pull-downs
seated row
and normal chin-ups help, too
2nd is arms: [biceps, then fore-arms]
curls (dumbbell or machine)
fore-arm curls (you use only your hands to curl the bar. No
arm movement)
reverse fore-arm curls (same thing but turn your hands
around)
3rd is chest:
butterfly machine (for outside and lower pecs)
Bench press (for mid and upper pecs)
4th is shoulders:
shoulder shrugs with heavy weight
arm raises (where you take like 10lbs and raise it to your
sides perpendicular to your body)

I then usually do some abs then triceps. I wouldn't tell just anyone about my routine and only told you cuz you were injured, and I broke my ankle and haven't fully recovered so I know what it's like. This will work out every muscle in your upper body if you do it right. Good luck and hope it helps you get in shape before football



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Effect of pre emergence weedicide on soil metabolic activity in inceptisol soil

Effect of pre emergence weedicide on soil metabolic activity

        in laboratory  under ambient condition in inceptisol soil.

     Megha V. Nagmote and  A. D. Kadlag

Department of Soil Science and Agriculture Chemistry

Mahatma  Phule Krishi Vidyapeeth, Rahuri-413722,

 Dist. Ahmednagar, Maharashtra.

 

-----------------------------------------------------------------------------------Abstract : The present investigation was carried out by conducting an incubation study. The incubation study was carried out in laboratory under ambient condition at Department of Soil Science and Agricultural Chemistry, Post Graduate Institute, M.P.K.V., Rahuri during 2002-03 to asses the periodical soil microbial population and enzyme activities viz., urease, acid phosphatase and dehydrogenase. The application of alachlor @ 1.0, 2.0 and 4.0 kg a.i. ha-1 were recorded the higher urease activity at 21st days (20.97, 20.83 and 20.85 mg NH4-N 100 g-1 soil hr-1 respectively) The acid phosphatase activity in laboratory incubation were increased at 21st days by alachlor @ 1.0, 2.0 and 4.0 kg a.i. ha-1 (9.532, 9.985 and 9.761 µMP g-1 soil hr-1, respectively). The soil dehydrogenase activity was higher at 21st days of incubation by the pre emergence weedicides.

------------------------------------------------------------------------------------------

Soil is a storehouse of plant nutrients for the growth and development of crop plants. The fertility of soil is governed by the enzymes that may be exoenzymes (free enzymes) or endoenzymes released from disintegration of cells. Nutrient cycling in soil involves biochemical and physiochemical reactions with the biochemical processes being mediated by microorganisms, plant roots and soil animals. All biochemical reactions are catalysed by enzymes. The microbes are small but their role in improving agricultural productivity and soil health is profound. Looking at the huge workforce of invisible tiny microbes, working wonders, doing thankless jobs silently for human welfare, one cannot but appreciate ‘Yes, the small is always beautiful (Anonymous, 2000).

Materials and Methods

The incubation study was carried out in laboratory under ambient condition at Department of Soil Science and Agricultural Chemistry, Post Graduate Institute, M.P.K.V., Rahuri during 2002-03 to asses the periodical soil microbial population and enzyme activities viz., urease, acid phosphatase and dehydrogenase. There   are    fourteen    treatment   comprised of pre emergence weedicide application viz., oxyfluorfen, alachlor, fluchloralin and pendimethalin in graded dose, weedy check and weed control. The soil of used for laboratory study is grouped under Inceptisol soil order belonging to Sawargaon (Pather)   soil   series.

Soil enzyme assay

Urease enzyme assay (Urea amidohydrolase,  EC 3.5.1.5) 

                   The urease enzyme assay was carried out according to the method described by Tabatabai and Bremner (1972).

Reagents used Tris (hydroxymethyl) amino methane (THAM) buffer, 0.05 M, pH 9.0 ,Urea solution - 0.2 M, Potassium chloride – 2.5 M – Silver sulphate (100 ppm) (KCl – Ag2SO4) solution, Sodium hydroxide - 2.5 %, Boric acid - 2 %, Mixed indicator, Working boric acid solution, H2SO4 -  0.1 N (Stock Solution)

Method - Five gram of soil was taken in 50 ml of clean dry conical flask. In each conical flask 0.2 ml of toluene and 9 ml of THAM buffer were added. The conical flask was incubated in water both for 30 minutes at 370c temperature. The conical flasks  were  replaced  from  the water bath and approximately 35 ml of potassium chloride silver sulphate solution (KCl – Ag2SO4)   was  added.    The content    was shaken    for few seconds and diluted to 50 ml volumetric flasks and were inverted several times and allowed to settle. Twenty milliliters of supernatant liquid was used for ammonical nitrogen (NH4-N) estimation by micro-kjeldahl method.

Acid phosphatase enzymeassay(Orthophosphoric monoester phosphohydrolase, EC 3.1.3.2) - For the assay of acid phosphatase enzyme, extraction was done by the method of Tabatabai and Bremner (1969). Reagents - Modified universal buffer (MUB) stock solution,   Modified Universal Buffer (MUB), pH 6.5, Na - b - Glycerophosphate - 0.1 M, Ammonium molybdate - 5 %, Perchloric acid - 60 %, Aminonapthol sulphonic acid (ANSA), Standard phosphorus solution - 0.01 M.

Method - Acid phosphatase enzyme was extracted from soil by the procedure of Tabatabai and Bremner (1969). Five gram of soil was taken  in  50 ml conical flask. In each conical flask 1 ml toluene, 20 ml modified universal buffer (MUB pH 6.5) and 5 ml of Na-b-glycerophosphate were added. The flask were replaced from water bath and kept in boiling water bath for 15 minutes to kill the enzyme activity. The content was filtered and 5 ml of extract was used for colour development. For colour development the procedure given by King (1932) was used. Five ml of filtrate was pipetted out in clean dry   25 ml volumetric flaks to which 1 ml of ammonium molybdate, 1.2 ml of perchloric acid and 1 ml of ANSA were added and final volume was made to 25 ml with distilled water for colour development. The absorbance was read on Spectronic-20 at 663 nm after 30 minutes against blank. The amount of inorganic phosphorus produced was calculated from the standard curve and  the  acid  phosphatase  activity  was  expressed in terms of mM ‘P’ g-1  soil hr-1.

Calibration of standard curve - In a series of 25 ml volumetric flask 0, 0.1, 0.2, 0.3 ….. 1 ml of 0.01 M phosphorus solution were pipetted out in triplicates. Rest of the procedure was same as described in the colour development. The standard curve was plotted on a graph paper taking mM of phosphorus concentration value against the absorbance at 663 nm.

Dehydrogenase enzyme assay - The dehydrogenase enzyme activity assay was carried out by the method described by Casida et al. (1964).

Procedure - Taken 6 screwed capped test tube of 15 ml capacity, one gram finely powdered soil in each of the tube were added, then added 500 mg FYM in each tube, one ml of 3 % TTC and 0.5 ml of 1 % glucose in each tubes were imposed, taped the tubes so that no air bubble remain in soil. A thin layer of water should form above the soil.Incubated for 12 hrs.Added 10 ml of methanol. Vigorously shaked the flasks and allowed to stand in dark for 24 hrs. Withdraw supernant and measure colour intensity using blue filter at 480 nm on Spectronic-20. The absorbance was proportional to the concentration of TPF formed.

Result and Discussion –

The periodical soil urease enzyme activity as influenced by the pre emergence weedicides in incubation study are presented in (Table 1). The urease enzyme activity was numerically increased up to 21 days of incubation over 7 and 14 days of incubation in all the weedicide application. The maximum urease enzyme activity was recorded in alachlor pre emergence weedicide application @ 1.0, 2.0 and 4.0 kg a.i. ha-1 (20.97, 20.83 and 20.65 mg NH4-N 100 g-1 soil hr-1 respectively) followed by fluchloralin @ 0.75, 1.50 and 3.0 kg a.i. ha-1 (19.88, 19.65 and 18.93 mg NH4-N 100 g-1 soil hr-1 respectively).  The urease enzyme activity at 45 and 60 days of incubation were drastically reduced in all the pre emergence weedicide application.  The reduction in urease enzyme activity might be related with the decreased soil microbial population and enzyme concentration in soil. This observation is corroborated with the Ramesh et al. (2000)

                   The soil acid phosphatase enzyme activity as influenced by the levels of different pre emergence weedicides under laboratory conditions are presented in (Table 2).  The highest soil acid phosphatase activity at 21 days of incubation was observed in pre emergence application of alachlor @ 1.0, 2.0 and 4.0 kg a.i. ha-1 (9.532, 9.985 and 9.761 mM P g-1 soil hr-1 respectively) followed by fluchloralin application @ 0.75, 1.50 and 3.00 kg a.i. ha-1 (9.341, 8.829 and 8.934 mM P g-1 soil hr-1 respectively).  These observations revealed that use of alachlor as pre emergence weedicide is more beneficial for soil acid phosphatase activity followed by fluchloralin.  This might be ascertained that these weedicides did not inhibit the microbial population in soil which in turn resulted in higher soil acid phosphatase activity.  These results are in accordance with Pozo et al. (1994) and Nagaraja et al. (1998).

                          The soil dehydrogenase activity as influenced by the application of pre emergence weedicide are depicted in (Table 3). It was maximum in lower dose of alachlor @ 1.0 kg a.i. ha-1 fluchloralin and pendimethalin @ 0.75 kg a.i. ha-1 (0.384, 0.451 and 0.497 m mol formazon g-1 soil day-1 respectively).  The variation in soil dehydrogenase activity might be because of microbial population and their activity in soil.  The 21 days of incubation showed the higher soil dehydrogenase activity by application of alachlor @ 1.0, 2.0 and 4.0 kg a.i. ha-1 (0.631, 0.653 and 0.697 m mol g-1 soil day-1 respectively). The fluchloralin weedicide also showed the higher soil dehydrogenase activity at 45 days (0.475, 0.485 and 0.359 m mol g-1 soil day-1 respectively) and 60 days of incubation (0.346, 0.374 and 0.364 m mol g-1 soil day-1 respectively). 

Conclusions - The application of alachlor pre emergence weedicide recorded the maximum urease activity at 21st days of an incubation followed by fluchloralin. The highest acid phosphatase activity was recorded at 21st days of an incubation by alachlor as pre emergence weedicide. The maximum dehydrogenase activity was observed at 21st days of incubation by the pre emergence weedicide.

References

Anonymous. 2000. Microbes for sustainable agriculture Indian Fmg. pp. 39-41.

Casida, L.E., Klein, D.A. and Santro, T. 1964.  Soil dehydrogenase activity.  Soil Sci. 98 : 371-376.

Nagaraja, N.S., Ramakrishna Parama, V.R. and Siddaramappa, R. 1998.  Effect of attrazine on urea N. mineralization and activity of some soil enzymes.  J. Indian Soc. Soil Sci. 46(2) : 182-192.

Pozo, L., Salmeron, V., Rodelas, B., Martinez-Toleds, M.V. and Gonzatez-Lopez, J. 1994.  Effect of herbicide alachlor on soil microbial activities.  Ecotoxicol.  3(1) : 4-10.

Ramesh, A., Joshi, O.P. and Billore, S.D. 2000.  Effect of herbicides on soil dehydrogenase and urease activity in soybean.  Indian J. agric. Sci. 70(4) : 218-219.

Tabatabai, M.A. and Bremner, J.M. 1969.  Use of nitrophenyl phosphate for assay of soil phosphatase activity. Soil Biol. Biochem. 1 : 301-307.

                                           

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 1.      Effect of pre emergence weedicide on perodical urease enzyme activity in inceptisol soil under laboratory condition

 

Sr. No.

Treatment

Urease enzyme activity

(mg NH4-N 100 g-1 soil hr-1)

 

7 days

14 days

21 days

45 days

60 days

1.

Oxyfluorfen

0.5 kg a.i. ha-1

15.58

16.65

18.68

11.98

11.84

2.

Oxyfluorfen

1.0 kg a.i. ha-1

14.61

15.84

18.32

11.83

11.57

3.

Oxyfluorfen

2.0 kg a.i. ha-1

14.32

14.68

17.90

11.58

10.92

4.

Alachlor

1.0 kg a.i. ha-1

17.95

17.98

20.97

15.65

14.79

5.

Alachlor

2.0 kg a.i. ha-1

17.88

17.93

20.83

14.93

14.55

6.

Alachlor

4.0 kg a.i. ha-1

16.98

17.78

20.65

14.73

14.17

7.

Fluchloralin 0.75 kg a.i. ha-1

16.96

16.96

19.88

13.87

13.68

8.

Fluchloralin 1.50 kg a.i. ha-1

16.72

16.88

19.65

13.53

12.83

9.

Fluchloralin

3.0 kg a.i. ha-1

15.47

16.65

18.93

13.28

12.75

10.

Pendimethalin 0.75 kg a.i. ha-1

16.98

16.89

19.81

13.85

13.92

11.

Pendimethalin 1.50 kg a.i. ha-1

16.87

16.77

19.45

13.69

13.69

12.

Pendimethalin 3.0 kg a.i.ha-1

15.25

15.93

18.89

12.85

13.55

13.

Weedy check

13.99

14.32

16.69

15.22

16.30

14.

Control

14.03

14.48

17.27

16.37

16.63

( Initial urease enzyme activity – 13.98 mg NH4-N 100 g-1 soil hr-1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 2.      Effect of pre emergence weedicide on perodical acid phosphatase enzyme activity in inceptisol soil under laboratory condition

 

Sr. No.

Treatment

Acid phosphatase enzyme activity 

(µM P g-1 soil hr-1)

 

7 days

14 days

21 days

45 days

60 days

1.

Oxyfluorfen

0.5 kg a.i. ha-1

3.753

6.345

7.952

5.689

4.657

2.

Oxyfluorfen

1.0 kg a.i. ha-1

2.922

5.861

7.637

5.851

4.491

3.

Oxyfluorfen

2.0 kg a.i. ha-1

2.848

5.980

7.485

5.948

4.648

4.

Alachlor

1.0 kg a.i. ha-1

4.942

7.831

9.532

6.985

5.899

5.

Alachlor

2.0 kg a.i. ha-1

4.893

7.989

9.985

6.743

5.736

6.

Alachlor

4.0 kg a.i. ha-1

4.628

7.574

9.761

6.538

5.758

7.

Fluchloralin 0.75 kg a.i. ha-1

4.782

7.953

9.341

6.854

5.635

8.

Fluchloralin 1.50 kg a.i. ha-1

3.831

6.795

8.829

6.481

5.813

9.

Fluchloralin

3.0 kg a.i. ha-1

3.788

6.647

8.934

5.973

5.987

10.

Pendimethalin 0.75 kg a.i. ha-1

3.831

6.893

8.685

6.343

5.435

11.

Pendimethalin 1.50 kg a.i. ha-1

3.688

6.576

8.742

5.718

4.988

12.

Pendimethalin 3.0 kg a.i.ha-1

3.423

6.487

8.533

5.895

4.713

13.

Weedy check

2.632

5.742

6.861

5.431

4.328

14.

Control

2.471

5.396

6.438

5.287

3.986

(Initial  phosphatase enzyme activity – 2.392 µM P g-1soil hr-1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 3.      Effect of pre emergence weedicide on perodical acid dehydrogenase enzyme activity in inceptisol soil under laboratory condition

 

Sr. No.

Treatment

Soil dehydrogenase enzyme activity

(µmol formazon g-1 soil day-1)

 

7 days

14 days

21 days

45 days

60 days

1.

Oxyfluorfen

0.5 kg a.i. ha-1

0.292

0.438

0.477

0.375

0.267

2.

Oxyfluorfen

1.0 kg a.i. ha-1

0.361

0.489

0.468

0.343

0.257

3.

Oxyfluorfen

2.0 kg a.i. ha-1

0.288

0.476

0.484

0.324

0.219

4.

Alachlor

1.0 kg a.i. ha-1

0.384

0.587

0.631

0.384

0.285

5.

Alachlor

2.0 kg a.i. ha-1

0.373

0.595

0.653

0.393

0.274

6.

Alachlor

4.0 kg a.i. ha-1

0.352

0.583

0.697

0.358

0.224

7.

Fluchloralin 0.75 kg a.i. ha-1

0.451

0.432

0.584

0.475

0.346

8.

Fluchloralin 1.50 kg a.i. ha-1

0.487

0.484

0.578

0.485

0.374

9.

Fluchloralin

3.0 kg a.i. ha-1

0.342

0.573

0.530

0.359

0.361

10.

Pendimethalin 0.75 kg a.i. ha-1

0.497

0.481

0.655

0.447

0.291

11.

Pendimethalin 1.50 kg a.i. ha-1

0.343

0.597

0.587

0.452

0.337

12.

Pendimethalin 3.0 kg a.i.ha-1

0.381

0.442

0.688

0.466

0.245

13.

Weedy check

0.245

0.332

0.442

0.316

0.259

14.

Control

0.203

0.248

0.327

0.283

0.134

(Initial  dehydrogenase enzyme activity – 0.269 µmol formazon g-1 soil day-1)

 

 

 

 

 

 

 

 

 

 

 

 

 

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