Nutrient management and balanced fertilization on main crops in Ningxia province

IPNI-2006-CHN-NX4

Nutrient Management and Balanced Fertilization in Main Crops in Ningxia Province, 2012 Two experiments on determining optimal K rates for cabbage and rice were conducted in 2012 in Ningxia Province. The experiment on cabbage in Wuzhong City showed that along with the recommended application of 300 kg N and 150 kg P2O5/ha, application of 75-300 kg K2O/ha produced 3. 2 to 5. 9 t/ha (13 to 24%) more yield and 548 to US$972 more benefit than without K application. Read more


Year of initiation:2006
Year of completion:2012

Interpretive Summary

Nutrient Management and Balanced Fertilization in Main Crops in Ningxia Province, 2012 Two experiments on determining optimal K rates for cabbage and rice were conducted in 2012 in Ningxia Province. The experiment on cabbage in Wuzhong City showed that along with the recommended application of 300 kg N and 150 kg P2O5/ha, application of 75-300 kg K2O/ha produced 3. 2 to 5. 9 t/ha (13 to 24%) more yield and 548 to US$972 more benefit than without K application.

Nutrient Management and Balanced Fertilization in Ningxia, 2011 Two experiments were conducted in 2011 in Ningxia province to: (a) investigate limiting nutrients for maximum rice yields by comparing the yields in optimal treatment (OPT) with yields obtained in nutrient omission plots; and (b) determine the optimal K rate for cabbage. An OPT trial in rice was conducted in Lingwu city.

Nutrient Management and Balanced Fertilization in Ningxia, 2009 Experiments in 2009 were conducted on wheat, rice, vegetables, and sunflower to discover the best nutrient management practices for conditions in Ningxia Province. Trials testing N rates on spring wheat grown in Wuzhong City found the highest average yield of 5,280 kg/ha with 240 kg N/ha plus 120 kg P2O5/ha and 90 kg K2O/ha. Protein content increased from 6. 8% to 7. 3% as N rate increased from 120 to 360 kg N/ha.

Soil Nutrient Management and Balanced Fertilization in Ningxia, 2008 Nutrient management experiments were conducted in 2008 in order to develop optimum (OPT) fertilizer recommendations for wheat, rice, potato, cabbage, and celery. Spring wheat was tested using a series of N, P, and K rates in Wuzhong City, which determined 240 kg N/ha, along with 120 kg P2O5/ha and 90 kg K2O/ha, to be most suitable.

Soil Nutrient Management and Balanced Fertilization in Ningxia, 2007 Experiments of nutrient management and balanced fertilization on wheat, corn, rice, potato, and vegetables (spinach and celery) were conducted in Ningxia in 2007. An N x K interaction study on intercropped wheat and corn in Wuzhong County determined that application of 225-180-135 kg N-P2O5-K2O/ha resulted in the highest average wheat yield, which was 27% over the check (CK) treatment omitting N and K.

Soil Nutrient Management and Balanced Fertilization in Ningxia, 2006 Rice trials were conducted in a seed-breeding farm in Lingwu City, corn and wheat trials were conducted in Wuzhong City, a watermelon trial was established in Zhongwei City, and celery, spinach, chili, and eggplant trials were conducted in Wuzhong City and Huinong County. The balanced optimum (OPT) for rice was determined to be 225-150-150 kg N-P2O5-K2O/ha.

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Project Leader

Youhong Li, Soil and Fertilizer Institute (SFI), Ningxia Academy of Agricultural Sciences


Project Cooperators

Fang Wang
Tiancheng Zhao


IPNI Staff

S. Li


Location

Asia \ Eastern Asia \ CHN \ Ningxia


Topics

nutrient management

maize, potato, rice, vegetable

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