Nutrient Management Strategies for Chongqing

IPNI-1999-CHN-CQ15

Nutrient management strategies project in Chongqing The photos below show the effect of K fertilizer on rice growth (Left: Application of KCl had significant effect on rice growth- + K vs. Read more


Year of initiation:1999
Year of completion:2007

Interpretive Summary

Nutrient Management Strategies for Lowland and Upland Cropping Systems in Chongqing, 2010 This ongoing monitored village was established in 2001 to monitor the effects of different phosphorus (P) and potassium (K) treatments on crop yield. Results are being used to guide fertilizer application for the county, track changes in soil fertility, and predict sustainability under different nutrient input regimes. This was the final year report. In the lowlands, rice responded better to P than K.

Nutrient Management Strategies for Lowland and Upland Cropping Systems in Chongqing, 2009 This on-going monitored village site was established in 2001 to study the effects of different P and K treatments on crop yield. Results are being used to guide fertilizer application for the county, track changes in soil fertility, and predict sustainability under different nutrient input regimes.

Nutrient Management Strategies for Lowland and Upland Cropping Systems in Chongqing, 2008 This ongoing monitored village project was established in 2001 to determine the effects of different P and K treatments on crop yield. Results are being used to guide fertilizer application for the county, track changes in soil fertility, and predict sustainability under different nutrient input regimes. In the previous 6 years, rice yield in the zero fertilizer check has continually decreased.

Nutrient Management Strategies for Lowland and Upland Cropping Systems in Chongqing, 2007 This monitored village site was established in 2001 to assess the effects of different improved fertilization strategies on crop yield and quality. Results are used to guide fertilizer application for the county, track changes in soil fertility, and predict sustainability under different nutrient input regimes.

Nutrient Management Strategies for Lowland and Upland Cropping Systems in Chongqing, 2006 This monitored village was established in 2001. Results are being used to guide fertilizer application for the county, track changes in soil fertility, and predict sustainability under different nutrient input regimes. In the past 5 years, rice yields for the zero fertilizer check have been declining, but now appear to be stable at about 64% of the optimum (OPT) treatment yield.

Nutrient Management Strategies for Lowland and Upland Cropping Systems in Chongqing, 2005 Since the establishment of this monitored village in 2001, researchers have been continuously tracking the effects of different phosphorus (P) and potassium (K) treatments with nitrogen (N) on crop yield. Results will be used to guide fertilizer application for the county, track changes in soil fertility with N and predict sustainability under different nutrient input regimes.

Nutrient Management Strategies for Chongqing, 2004 Soil nutrient status and variability was determined and is being used to develop nutrient management techniques and systems capable of sustaining high yields and improving farmer profitability. Data from this and other field trials will be applied to an information systems database, which will be used to help formulate rational fertilizer regulation and management policies.

Nutrient Management Strategies for Chongqing, 2003 Soil nutrient status and variability was determined and is being used to develop nutrient management techniques and systems capable of sustaining high yields and improving farmer profitability. Data from this and other field trials will be applied to an information systems database, which will be used to help formulate rational fertilizer regulation and management policies.

Nutrient Management Strategies for Chongqing, 2002. Initiated in 2001, the objective of this project is to study soil nutrient status and existing nutrient variability in fields of the region and to develop nutrient management techniques and systems capable of improving crop yield and farmers’ net benefit. Data from this study will be combined with information from other field trials and fertilizer use surveys collected from villagers.

Nutrient management strategies in Chongqing province, 2001 A monitored village study aims to better understand soil nutrient status and field variability to develop effective nutrient management techniques capable of improving crop yield and farmer benefits. The results, combined with other information from field trials and fertilizer use surveys collected in the village, will be supplied to a database and finally used to help formulate plans for fertilizer regulation and management in China.

Nutrient management strategies project in Chongqing, 1999 The balanced fertilizer treatment with 128-90-90-6. 4 kg N-P2O5-K2O-Zn/ha increased rice yield by 1080 kg/ha (20. 7%) and 1725 kg/ha (30. 2%) over farmer’s practice (K0) in Liangping county and Jiangjing county, respectively. The contents of crude proteins and total amino acids were 89. 2 g/kg and 26. 1 g/kg in the grains of balanced fertilizer treatments, 24. 7g/kg and 7. 9 g/kg higher than that in the K0 treatment, respectively.

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Updates & Reports

2005

Effect of K on rice growth

2001

1999-Nutrient management strategies project in Chongqing


Project Leader

Li Wei, Chongqing Soil and Fertilizer Station


Project Cooperators

Dai Henglin


IPNI Staff

Shihua Tu


Location

Asia \ Eastern Asia \ CHN \ Chongqing


Topics

4r rate, balanced nutrition

maize, rice

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