Recommendation of Agricultural Gypsum

Benefit to soil and plants.

Crops

Application rate of gypsum (lbs./acre)

	Increase calcium and sulfur content in the soil.
	Correct the surface soil crusting and poor water penetration as a result of heavy rain or irrigation.
	Reduce the subsoil acidity.
	Support the balance between magnesium, potassium and micronutrients.
	Reduce the toxicity of nutrients in soils and plants.
	Reduce the plant diseases affected to stems, roots, and fruit rots, crack stems and fruits.
	Increase the yield and quality of crop

	Fruits crops: grapes, orange, apple, citrus, lime, pineapple, cantaloupe, strawberry and tropical fruits
	Field crops: peanuts, soybean, mungbean, sesame, rice, corn, sugarcane, cassava, etc.
	Tuber crops: potato, sweet potato, taro, etc.
	Vegetables: various kind of edible leaves, pods and fruits.

280-550

140-280

NATURE'S#1 SOIL AMENDMENT
CHEMICAL ANALYSIS	GUARANTEE	TYPICAL
GYPSUM CALCIUM SULFATE-SULFUR Mesh Size Through 200 Mesh	97% 24% 17.5% Guarantee 99%	98% 23% 18% Typical 98%

Benefit to soils

Purpose of applying

Application rate of gypsum (lbs./acre)

	Combining effects of soil and organic matter increases the soil flocculation.
	Increase the soil water absorption and infiltration rate.
	Build up the nutrient balance between calcium and micronutrients.
	Works together with water-soluble polymers, soil conditioners to become more effective.
	Can enhance liming to correct soil acidity.
	Reclaim sodic soils caused by accumulation of Sodium where the pH raised more than 8 (with exception for salt tolerant crops) In which ordinary crop cannot survive.

	Rehabilitate and buffers soil pH to favorable condition of plant growth.
	Rehabilitate sodic soils or alkali soils caused by salts built up in the soil. *

550 - 1100

1100 - 5500

* The application rate of gypsum can be calculated from ESP and CEC value for actual gypsum requirement.