Management of Sloping Lands for Sustainable Agriculture in Sichuan

IPNI-1997-CHN-SC22

Project implementation plan in 2006 Read more


Year of initiation:1997
Year of completion:2005

Interpretive Summary

Management of Sloping Lands for Minimal Nutrient Run-off in Sichuan, 2005 Previous research has shown alley cropping to be a sound soil conservation strategy for Sichuan's sloping lands. In 2005, research was focused on the effect of alley cropping on soil nutrients losses. Losses of available and total nitrogen (N), phosphorus (P) and potassium (K) in the run-off and sediments were determined after each significant rainfall event.

Management of Sloping Lands for Sustainable Agriculture in Sichuan, 2004 Several years of research and demonstration with balanced fertilization and biological barriers, also called alley cropping or eco-engineering, suggest a highly profitable and effective means of reducing soil erosion and improving crop yields per farmed hectare of sloping land. In 2004, researchers further examined the effect of alley cropping on nutrient loss through water loss and soil erosion.

Management of Sloping Lands for Sustainable Agriculture in Sichuan, 2003 This project on the sloping lands of Sichuan is evaluating the cost and environmental effectiveness of balanced fertilization (BF) and biological barriers (BB). also referred to as alley cropping or eco-engineering. against the traditional and expensive engineered terraces (ET). Over a four year period, the BF/BB method has been successfully applied and, as a result, it reduced soil loss and increased farmers’ income.

Management of Sloping Lands for Sustainable Agriculture in Sichuan Province, 2002 . Project objective: To evaluate balanced fertilization and biological barriers (BF/BB) against expensive engineered terracing (ET) on sloping lands, and to demonstrate the new technology’s effectiveness and the profitably resulting from reducing soil erosion while improving farmer income. For the past three years, the BF/BB method has significantly reduced soil loss and increased farmer profit.

Management of sloping lands for sustainable agriculture in Sichuan province, 2001 This study is evaluating a new approach that combines balanced fertilization and biological barriers rather than construction of expensive mechanical terracing on sloping lands. For three years, the technique has had a significant effect on 1) reducing soil erosion, the cause of a major flooding in the Yangtze River, and 2) increasing farm income.

Management of sloping lands for sustainable agriculture in Sichuan province, 2000 The objective of this study is to evaluate a new approach of using balanced fertilizer and biological barriers on sloping lands rather than expensive mechanical terracing to effectively and profitably reduce soil erosion. Erosion is the major source of flooding in the Yangtze River and is a primary cause of farmer poverty.

Management of sloping lands for sustainable agriculture in Sichuan province, 1999 The effectiveness of combining balanced fertilizer use with alley cropping is being evaluated as a measure to improve farmer income by reducing water and soil loss on erosive farmlands in the hilly region of Sichuan province. The project was initiated in 1997 and is jointly managed with the International Board for Soil Research and Management (IBSRAM). The system of alley cropping was introduced in 1998.

Management of sloping lands for sustainable agriculture in Sichuan province, 1998 Alley cropping is a new and effective conservation system in southern China, wherein hedgerow crops are planted across sloping lands in order to prevent soil loss due to erosion. Alley cropping without potassium (K) fertilizer was compared to the traditional practice of no alley cropping without K.

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Updates & Reports

2006

Project implementation plan in 2006

2006

Managing Sloping Land in China: A Conservation Success Story

2006

Integration of Cash Crop Hedgerows and Balanced Fertilization to Control Soil and Water Losses

2006

Related Resources

2001

Investigators


Project Leader

Chen Yibin, Soil and Fertilizer Institute, Sichuan AAS


Project Cooperators

Lin Chaowen


IPNI Staff

Shihua Tu


Location

Asia \ Eastern Asia \ CHN \ Sichuan


Topics

4r rate, soil erosion

maize

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