up to 2 acres and cows wont eat grass happily I have she oaks surrounding thes small blocks and wondered was it the oaks that are making ground sour or something I

HI my name is Graham live in tehoro north of Waikanae north Island I have 20 acres 2 are surrounded by she oaks and the cows dont like eating this block I put lots of lime fert on and lots of growth but stil they dont like all other padocks are fine just this part can anyone help with any ideas thanks Graham new member

It is probably due in part, to the pasture being in shadow. You can top sheoaks, or casaurina, easily and they will refurbish. They also coppice, so you can cut them lower to let the sunlight in, retain some of the shelter they give, and use any heavier wood for fire wood.
They fix nitrogen, so it shouldn't be a bother growing grass around them.

Yep, I agree with it likely being the shade rather than the Sheoaks, for several possible reasons; Grass grown in shade contains less sugar than grass grown in sunlight, so cows will eat the sunny grass in preference. Some less palatable varieties of grass such as tall fescue tend to favour shaded areas over other varieties.

I have Sheokesin paddocks and the animals still graze around them.
If the trees fun east /west, they will not get enough sun on their southern side and the animals wont like the grass on the southern side. That is why shelter belts need to run north/south axis so they get morning sun on one side, and afternoon sun on the other
The other think is if thats the only shelter on the farm and the animals camp under the trees for shelter, they wont be eating the grass around the trees

Have you been putting the same fertiliser on this area as the rest of the farm? If not, then that might be part of the problem.
You could try using a molasses block while they are in that area. Rank grass has less sugar than new grass, and the bugs in the rumen need sugar to digest grass. Topping the long grass, and removing the toppings might help too.

thanks for thta i have toped the trees and also the same fert as other paddocks I have just put the in next doors paddocks as they are away and theres is the same I suppose I must get the soil tested thanks Graham