Balanced fertilization study on crops in Guizhou province

IPNI-1994-CHN-GZ3

Balanced fertilization study on crops in Guizhou province, 1998 Systematic soil analysis indicated that soils in Guizhou province are commonly deficient in P and K. Field trial results in 1998 revealed that most test crops showed a good response to K, but not to P application. Further studies have been designed to uncover the reasons for the poor crop response to P fertilizer. Read more


Year of initiation:1994
Year of completion:1997

Interpretive Summary

1998

Balanced fertilization study on crops in Guizhou province, 1998 Systematic soil analysis indicated that soils in Guizhou province are commonly deficient in P and K. Field trial results in 1998 revealed that most test crops showed a good response to K, but not to P application. Further studies have been designed to uncover the reasons for the poor crop response to P fertilizer.

1996

Balanced fertilization study on crops in Guizhou province, 1996 Significant yield increases on a variety of crops have been obtained in Guizhou province with balanced fertilization practices. Thirty percent yield increases were obtained with potato and watermelon by increasing the overall amount of fertilizer applied in the proper ratios. In corn, economic analysis revealed the application of 52 kg K2O/ha and 144 kg P2O5/ha was profitable.



Project Leader

Yin Dixin


Project Cooperators

None


IPNI Staff

Shihua Tu


Location

Asia \ Eastern Asia \ CHN \ Guizhou


Topics

4r rate, balanced nutrition

maize, potato, rice

Nitrogen (N), Phosphorus (P), Potassium (K)