Some Points About 20-20-20 Fertilizer: 20-20-20 Fertilizer is a perfect fertilizer having high efficiency because of including different elements needed by the plants and with suitable ratios and combinations in spray solutions and or for direct applying to soil.

Instructions :

	Direct Use in Soil: 1-2 parts per thousands, once a week.
	Spray Use: 5-7 parts per thousands, once a week.

The above instructions are general and shall be tested in different environments.

Spray Solution Shall not be used in Following Conditions:

	Probability of Precipitation
	High Temperature (Early morning and sunset time are the best times for spraying).

For following reasons, spraying is preferred to direct apply method:

Feeding the plants and irrigation take place simultaneously. In spraying method, the quantity of nutrients that are needed by the plant can be regulated carefully and in high degree of exactness. The results of applied experiments indicate that absorption through leaf is more complete than absorption through roots and has higher efficiency. The compounds of some elements such as iron are instable when exposed to light so in direct use on soil some compounds which are unusable for plant may be generated. Fertilizer wastes are prevented.

Glyphosate SL41% is one of the main herbicides produced by Haf Company. Considering the environmental issues and the remnants of pesticides in nature, emphasizing on effects of pesticides, herbicides, and on using water-base formulations (not using water solvents) is effective contribution. Glyphosate is a systematic herbicide which affects most when the weed is in its complete growth and its leaf surface is big. Therefore, the degree of scattering has direct effect on its weed killing property. After needed studies and research, HEF Company has added a new emulsifier to Glyphosate formulation. Relevant applied tests performed after five years from the date of spraying have showed highest degree of absorption by the weed. This great property means least amount of Glyphosate consumption accompanied by highest degree of effects.

Pesticides Production part of HEF CHEM CO. manufacturer consists of four section:
Liquid pesticides section A: Different types of insecticides, fungicides, and acaricide are produced in this section. this section includes: production reactors, filtering system, reserve tanks and packing line. Emulsifying agent (HEF Oil) too will be produced close to Liquid pesticides section.
Liquid pesticides section B: All types of herbicides by different formulation will be produced in this section. This section includes: production reactors, filtering system, reserve tanks, and packing line.
Powder section: All powder pesticides with different D,DS, SP, WP, … formulations will be produced in this section. This section includes :production mixers, mills, and packing line.
Home Insecticides section: Home insecticides of HEF CHEM CO. will produce in this section and will be presented under exclusive brand of ZED and DUST formulation.