If it is not too windy and you are careful you can spray glyphosate in between rows to kill the grass root and all. Just don't get too close to the green stems or leaves of the plants you want to keep.
Be sure and use very low pressure in the sprayer and adjust the nozzle for the largest droplets you can to avoid the chemical from blowing or splashing onto your garden plants.
- Handsomeryan
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What you want as a dirt mulch is dirt without weeds in it! everyone over looks the fact thet most dirt a foot down has very few weeds.! Just dig a hole by first taking off about 9 inches f urface dirt in lets say a 9 by 9 foot area and dig another foot of soil out of the area and use it between and around your plants. The hole you dig ill it up with all types of compost material and use it for a compost pit! You can even start the new compost pit by using the 9b nine area to brn old limbs and brush then cover it with mulch for the compost! Or even use the pit for all the dead produce coming out of your garden!
- Handsomeryan
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The downside to this method is that you kill off a lot of helpful microbes as well . However, if you're just using it as a much, that shouldn't matter too much .malkore wrote:google 'solarizing soil'. you can kill off the grass, weeds, and diseases in a bed or pathway doing it like this, then newspaper and mulch over the top to keep new stuff from taking hold in the clean soil