The biggest feature of polyaspartic acid is: biodegradable, non-toxic, and does not damage the ecological environment, it is known as “green product”. Polyaspartic acid is a water-soluble polyamino acid polymer compound, which is a phosphorus-free, non-toxic, non-polluting, and biodegradable green chemical product.
As a green and environment-friendly product, it can be used as a plant growth promoter and pesticide soil restoration additive in agriculture.
Polyaspartic Acid on Corn
1. Increase the absorption of nutrients nitrogen, phosphorus, and potassium in the soil by plants and the absorption of micronutrient elements calcium, magnesium, sulfur, zinc, iron, and manganese.
Polyaspartic acid Promotes the Absorption of Nutrients in Corn | ||||||||
Usage Amount | P | K | Zn | |||||
P Content in Corn (%) | Increase rate (%) | K Content in Corn (%) | Increase rate (%) | Zn Content in corn (ppm) | Increase rate (%) | |||
0 ppm | 0.3 | 0 | 2.6 | 0 | 29 | 0 | ||
1 ppm | 0.36 | 20.0 | 2.7 | 3.8 | 48 | 65.5 | ||
10ppm | 0.34 | 13.3 | 3.0 | 15.4 | 45 | 55.2 | ||
100ppm | 0.38 | 26.7 | 2.8 | 7.7 | 54 | 86.5 | ||
2. To the potted corn growing in the greenhouse, apply chemical fertilizer 20-20-20 per pot, and the amount of chemical fertilizer is respectively 0.3g (100% nutrient), 0.15g (50% nutrient), 0.075g (25% nutrient ), the effect of polyaspartic acid on its growth after six weeks is shown in below table.
Effect of Polyaspartic Acid on Corn Growth | ||
Fertilization Mode | Weight (g) | Average N Content (mg) |
100% Nutrient | 45.8 | 67.6 |
100% Nutrient + 5ppm PASP | 46.5 | 75.7 |
100% Nutrient + 500ppm PASP | 50.2 | 73.2 |
50% Nutrient | 34.7 | 40.5 |
50% Nutrient + 5ppm PASP | 45.6 | 57.6 |
50% Nutrient + 500ppm PASP | 38.6 | 49.6 |
25% Nutrient | 24.1 | 29.6 |
25% Nutrient + 5ppm PASP | 31.7 | 36.2 |
25% Nutrient + 500 ppm PASP | 38.3 | 47.8 |