The Grass Measuring Thread

charolais0153

Freejin wrote: »

New years resolution here to start measuring grass (again!). Made an attempt a few years ago but packed it up.

I have a plate meter and did a walk yesterday. Just wondering what formulas do fellas use with the plate meters? Looking back at the one I used a few years back, it was:
(((Final Reading-Initial Reading)/No. of Samples)*140)-1000=KG dm/ha

No idea where I got that from, so could be way out!

(Final reading - first reading) ÷ (no. Of samples x2)=height of grass...multiply that by 250 for kg/DM/ha.
This is what I do

RobinBanks

charolais0153 wrote: »

(Final reading - first reading) ÷ (no. Of samples x2)=height of grass...multiply that by 250 for kg/DM/ha.
This is what I do

Is this formula for the manual plate meter?

charolais0153

RobinBanks wrote: »

Is this formula for the manual plate meter?

Yes

RobinBanks

charolais0153 wrote: »

Yes

Cheers. Must give it a go myself.

Freejin

charolais0153 wrote: »

(Final reading - first reading) ÷ (no. Of samples x2)=height of grass...multiply that by 250 for kg/DM/ha.
This is what I do

Thanks for that. I used your formula and got very high readings (about 800 more than my own formula) I guess it could depend on the make of platemeter. I should probably cut and weigh a few samples and calibrate that way

ted_182

Freejin wrote:

Thanks for that. I used your formula and got very high readings (about 800 more than my own formula) I guess it could depend on the make of platemeter. I should probably cut and weigh a few samples and calibrate that way

it should be divide by 2 not multiply

Signpost

Does anyone here use the Grasshopper for measuring grass? Half thinking of making the plunge but wouldn't mind getting the opinion of someone with one first

kevinm177

Signpost wrote: »

Does anyone here use the Grasshopper for measuring grass? Half thinking of making the plunge but wouldn't mind getting the opinion of someone with one first

Have been trying to get one for last 4 weeks. Numerous emails and calls but not getting any replies. Seems very strange whatever is going on. Anyone else been trying?

Buford T. Justice XIX

Signpost wrote: »

Does anyone here use the Grasshopper for measuring grass? Half thinking of making the plunge but wouldn't mind getting the opinion of someone with one first

kevinm177 wrote: »

Have been trying to get one for last 4 weeks. Numerous emails and calls but not getting any replies. Seems very strange whatever is going on. Anyone else been trying?

I got one late last year after waiting for a good while for one. I still have to set it up but it looks like I will get a chance next week. I did a walk with one guy doing his measurement with one and it really make the job simple but delivery is really, really slow.

If you are in a discussion group that is interested or know a few lads interested, there is a good discount available and delivery is a good bit quicker.

Limofarmer

Freejin wrote: »

Thanks for that. I used your formula and got very high readings (about 800 more than my own formula) I guess it could depend on the make of platemeter. I should probably cut and weigh a few samples and calibrate that way

We use second reading less first reading then divide by twice the amount of drops e.g

Using 20 drops we got a reading 32266 minus 1st reading = 194
20 drops x 2 = 40

So divide 194 by 40 = 4.8 cms of grass
including @ 4 cm residual that would leave a cover of 200

charolais0153

Limofarmer wrote: »

We use second reading less first reading then divide by twice the amount of drops e.g

Using 20 drops we got a reading 32266 minus 1st reading = 194
20 drops x 2 = 40

So divide 194 by 40 = 4.8 cms of grass
including @ 4 cm residual that would leave a cover of 200

Better description of how I do it

freedominacup

Brought maiden heifers back in today. They did some good work for the ten days they were out. Probably saved enough silage to keep the milkers in three or four nights extra in March should the need arise. I'm happy enough that there's enough fodder there unless things go completely curly. We're going to keep the milkers out even if it's just for a few hours per day. This humid mild weather makes it very hard to keep sheds right.

Mooooo

A lot of rain with the last week here, don't see cows going out without a good week of drying weather. Agree re the sheds, was sweating myself in the oil skins yday.

GrasstoMilk

A lot of rain here last night. Going for breaky now and I'll walk the paddock after to see if cows will go out today.
Calving not really kicked off yet. Delighted I pulled it back a week or our yard would be under quite a bit of pressure ATM

mahoney_j

Cows out day and night since last Friday out all day and out from 5.30 till 9 at night .

Keepgrowing

mahoney_j wrote: »

Cows out day and night since last Friday out all day and out from 5.30 till 9 at night .

Winter girls out today and will stay out tonight. Heifers started calving today, very obliging with a nice steady stream of calves since 10am. 7 so far and no assist all by PSQ

White Clover

Keepgrowing wrote: »

Winter girls out today and will stay out tonight. Heifers started calving today, very obliging with a nice steady stream of calves since 10am. 7 so far and no assist all by PSQ

Nice going there! I bet It's not like work at all when things are going smoothly.

Keepgrowing

White Clover wrote: »

Nice going there! I bet It's not like work at all when things are going smoothly.

Lol, like a swan......legs going like the clappers under the water

charolais0153

Pasture base isn't working for me. It says that someone may be trying to steal my data etc. Happening to anybody else? Anything I can do?

GrasstoMilk

Milkers kicking in grass mode

Timmaay

GrasstoMilk wrote: »

Milkers kicking in grass mode

It's a lot wetter up here, I definitely cannot risk pushing them to graze that tight yet. But ridiculous regrowth on what was grazed 2wks ago, I don't mind if I have to wait till round2 to get a better clean out.

GrasstoMilk

Timmaay wrote: »

It's a lot wetter up here, I definitely cannot risk pushing them to graze that tight yet. But ridiculous regrowth on what was grazed 2wks ago, I don't mind if I have to wait till round2 to get a better clean out.

I probably pushed them a bit hard there yet. Still trying to get a handle of area to allocate and intakes

Timmaay

GrasstoMilk wrote: »

I probably pushed them a bit hard there yet. Still trying to get a handle of area to allocate and intakes

What else ya feeding them? I'm giving them mostly just maize, bit of silage that gets mixed up with it. They only get that around the evening milking, so reasonably hungry when going out anytime between 10am and 2pm (depending on weather!), not really a whole lot more I can do.

awaywithyou

GrasstoMilk wrote: »

Milkers kicking in grass mode

Nice grass there lad... Fair play... What variety is it?

GrasstoMilk

Timmaay wrote: »

What else ya feeding them? I'm giving them mostly just maize, bit of silage that gets mixed up with it. They only get that around the evening milking, so reasonably hungry when going out anytime between 10am and 2pm (depending on weather!), not really a whole lot more I can do.

3kg meal ATM. Opening the maize fairly soon I'd say

freedominacup

Just got first half of soil samples back. All threes and fours bar two paddocks on land we bought ten years ago. This had been in conacre while my arse is looking down but after ten years of tlc it's still only in index 2. Half silage ground requires 2 tonne of lime plus the wettest 15 acres we have needs 1.5 tonnes per acre. Steady as she goes with our fert programme other than a few of loads of lime. No surprise on the index two's. Very hard to get performance from them. They'll stop performing at the slightest hint of unfavourable conditions. Everything should be set for a good grazing season once the lime is out.

Signpost

In the absence of being able to get in contact with Grasshopper (TrueNorth)... Plate meter, worth it or not worth it?
Religious enough with grass recording last while here so cost would be inhibitive if they give the ability to budget more accurately.

kevinm177

Signpost wrote: »

In the absence of being able to get in contact with Grasshopper (TrueNorth)... Plate meter, worth it or not worth it?
Religious enough with grass recording last while here so cost would be inhibitive if they give the ability to budget more accurately.

Spent a month trying to get it contact with no joy. Then out of blue got email sayin they would be at my place for a demo in a week. Man arrived on the day and gave me a quick demo. Didn't try and sell it at all just told me to think about it and get back to him.

GrasstoMilk

freedominacup wrote: »

Just got first half of soil samples back. All threes and fours bar two paddocks on land we bought ten years ago. This had been in conacre while my arse is looking down but after ten years of tlc it's still only in index 2. Half silage ground requires 2 tonne of lime plus the wettest 15 acres we have needs 1.5 tonnes per acre. Steady as she goes with our fert programme other than a few of loads of lime. No surprise on the index two's. Very hard to get performance from them. They'll stop performing at the slightest hint of unfavourable conditions. Everything should be set for a good grazing season once the lime is out.

Got ours back last week.
This was land that was in continuous tillage for 30 years (Beet and Barley) and let out for most of it.
No p or k registered on soil samples when we took first ones 13 years ago.
Majority of new reseeds failed that were set that year.

Now, 3/4 of farm is index 3 or 4 and the rest that was being used for 3 cuts of silage is at index 2. That's going into continuous grazing from this year on, so hopefully we'll get her in 3/4 now

No wonder cash has been so tight here with building up soil indexes and cow numbers. Soil is in supper quality compared to what it was.

New target for this farm is to grow 16-17t. Should do it easily

Mooooo

GrasstoMilk wrote: »

Got ours back last week.
This was land that was in continuous tillage for 30 years (Beet and Barley) and let out for most of it.
No p or k registered on soil samples when we took first ones 13 years ago.
Majority of new reseeds failed that were set that year.

Now, 3/4 of farm is index 3 or 4 and the rest that was being used for 3 cuts of silage is at index 2. That's going into continuous grazing from this year on, so hopefully we'll get her in 3/4 now

No wonder cash has been so tight here with building up soil indexes and cow numbers. Soil is in supper quality compared to what it was.

New target for this farm is to grow 16-17t. Should do it easily

Dung your biggest asset for that I take it?
A lot of rain again the last few days so nothing out yet. Will have no problem getting thru ground once out but would like to get cows out as cubicle space tightening up and get a few paddocks into gear. Ground u had hoped to get slurry on was too wet when pipe came so will go with 2 bags 18 6 12 there once conditions allow