Study on high efficiency nutrient use and regulation of soil nutrient dynamics for high yield rice

IPNI-2010-CHN-HN16

Rice planting plays a crucial role in food production of China. Area of rice growing is approximately 1/4 of the total area of grain crops, while rice yield approached to 1/2 of total grain crop yield. Hunan is the largest province for rice production in the country. Read more


Year of initiation:2010
Year of completion:2010

Interpretive Summary

Study on High Efficiency Nutrient Use and Regulation of Soil Nutrient Dynamics for High Yielding Rice, 2012 This long-term project, started in 2005, is being implemented by the Soil and Fertilizer Institute, Hunan Academy of Agricultural Science. The objective is to collect and compile all the relevant information on N in relation to rice cropping and it's environmental impact to improve the efficiency of rice production.

Study on High Efficiency Nutrient Use and Regulation of Soil Nutrient Dynamics for High Yields of Rice, 2011 Rice crop plays a crucial role in food production of China. Hunan is the largest rice production province in China with an annual production of 29. 1 M t. To study high efficiency nutrient use and regulate soil nutrient dynamics for increasing rice yields, Hunan Institute of Soil and Fertilizer collected in 2011 a total of 24 samples from eight main double-rice production counties.

Highly Efficient Use and Dynamic Regulation of Soil Nutrients in High Yielding Rice Rice is the most important grain crop in China. It occupies only 25% of the grain crop area, but represents 50% of its total grain food output. High yielding, super hybrid rice has spread quickly in recent years in China. As the largest rice production province, the planting area of super hybrid rice in Hunan has reached 4 million ha with an average yield of 12 t/ha in 2006.

Efficient Nutrient Use and Regulation of Soil Nutrient Dynamics for High Yield Rice, 2009 Fertility characteristics of highly productive paddy soils were studied as part of a science-based approach to sustainable utilization of paddy soils. Organic matter fractions (total and labile) and nutrient contents (total and available) and their relationships with rice yield were investigated within double-rice cropping systems located in eight important rice production counties in Hunan.

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Updates & Reports

2010

Project Description


Project Leader

Zhenh Sheng-xian, Hunan Academy of Agricultural Science


Project Cooperators

Nie Jun
Liao Yulin


IPNI Staff

F. Chen


Location

Asia \ Eastern Asia \ CHN \ Hunan


Topics

4r place, 4r rate, 4r source, 4r time, best management practices

rice

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