The experimental sunflower Mexican and Mexican grass in concentration by spraying the leaves with the PBZ into the soil. "Pouring PBZ into the soil, making the plant two kinds of substances have led to over-spraying" from the study, and were compared. The growth of the plants fell from PBZ which acts to inhibit the growth of plants. It is clear from the results of the study found. "The concentration of PBZ makes plants grow down", the study found. "The growth of the crop reduction will make the plants resistant to lack of water," and the comparison between sunflower Mexican grass Mexican plant species that can tolerate a lack of water or more and are suitable for adoption. get more Measured by growth declining from the second species of plants. It uses the values that require the most concentration of the means of pouring water into the soil.