Scientific Fertilization

Joined: 20 Jul 2008 Posts: 193

1, with the use of fertilizers and manure
The long-term use of chemical fertilizer alone will result in decline in soil fertility, crop yield and quality decline, undermining the ecological balance, and cause environmental pollution. With the use of fertilizers and manure can improve crop nutrition, improve soil fertility, reduce fertilizer costs and improve the effectiveness of fertilizer to improve crop yields and quality, but also to reduce environmental pollution. Both learn from each other, relative to economic priorities, fertilizer and manure is generally believed that the proportion of 7:3 to 3:7 within the effect is good.
2, a variety of nutrient balance in the supply of
In 1989, the proportion of China's application of fertilizer (N: P2O5: K2O = 1:0.34:0.09) below the world average level (1:0.47:0.37), resulting in less phosphorus deficiency potassium imbalance. According to crop and soil conditions, so that nitrogen, phosphorus and potassium in proportion with the use, bearing in mind the rational application of fertilizer, trace elements, balanced supply of nutrients, give full play to the synergistic effects between fertilizer.
　　