s, you can use gramoxone 6 mL/L for killing weeds, after all the weeds are killed, land can be cultivated and tomato plants can be planted.
and You can find summer tomato varieties at following link
K SANJEEVA REDDY,
Senior Agronomist, BigHaat.
Disclaimer: The performance of the product (s) is subject to usage as per manufacturer guidelines. Read enclosed leaflet of the product(s) carefully before use. The use of this product(s)/ information is at the discretion of user.