The Information ofPESTICIDE

Roots Most roots are distributed in the soil layer from 0-50cm in areas with low groundwater levels or sandy soil, the roots can grow very deep (6-8m). However, most roots are concentrated within a range of about 2m from the base. Trunk, canopy Large, strong-growing tree, 10-20m high, with dense

MORPHOLOGICAL CHARACTERISTICS Roots: There are 3 types. Main root: grows up to 2 m deep to absorb water. Secondary roots: grow in clusters at a depth from the topsoil to 40 cm, with the task of absorbing water and nutrients to nourish the plant, and are not resistant to waterlogging.

MORPHOLOGY OF WATERMELON PLANT Seedlings: The cotyledons are well developed, the leaf blade is elongated, the tip is indented, about 20 mm long and 10 mm wide, slightly thick and a prominent main vein. The first leaves grow alternately and simply, carried by a 10-15 mm petiole with fine hairs.

RICE MORPHOLOGY IDENTIFICATION Rice is native to tropical and subtropical regions of Southeast Asia and Africa. Stem: Rice is an annual plant, the stem can be up to 1-1.8 m high, sometimes higher. Leaves: Leaves are thin, narrow (2-2.5 cm) and 50-100 cm long. Flowers: Small rice flowers of self-pollinating