>>1392509Briars are not affected by wind damage for the most part. Trees can have damage and tall crops like vines, corn, sorghum, and such can have serious problems with low storm winds. You can use briars as wind breaks coupled with taller shrubs then trees to better angle winds up and over more delicate crops (similar to pic).
>potato beetle infestationA "carbaryl" based pesticide is what most people use here in the states. The brand name I know of is, "Sevin Dust." Neem oil is also a go-to organic option for pretty much anything. Insect netting row covers work very well to keep the adult beetles off the crops in the first place. There are also a few insect predators that eat them and also birds you can attract. Though, I don't know which ones eat them in your location.
>I would probably had to compost it for few years to get any meaningful effect.Start right now. Put all your organic waste into a container that has good air flow. Google up how to make compost at home and don't worry too much about green/brown ratios and recipes right now. The sooner you start the sooner you get results. The most important composting method will come later when you've found good and large sources of compost material. Research, "Berkley Method Composting." It is a method to hot compost everything in only 18 days, but it is a LOT of work if you only have hand tools. It is very worth it if you have a medium amount of compost.
>2 ha of grass and weeds Hay is normally $7 a square bale where I live. So 2ha/5acres is a good deal of money in hay. Many people here work out deals with local animal farmers. They come and cut the hay fields and pay the land owner for what they get, though at a reduced cost since they are doing all the work. Others lease the land to them for that under contract. It also makes GREAT compost. I simply cut it and pile it in heaps all year with other compost materials. At the beginning for the second year I plant pumpkins on it. 3rd year it is soil.
