Nutrient management and balanced fertilization in Shaanxi province

IPNI-2006-CHN-SN4

Nutrient Management and Balanced Fertilization in Apple and Kiwi in Shaanxi, 2012 Trials were conducted in 2012 in Shaanxi Province to evaluate the effect of balanced fertilization on yield and quality of kiwi and drip-irrigated apple. The first experiment was conducted in a 10-year old apple orchard in Fengxiang County, where the nutrient recommendation was 0. 6 kg N, 0. 24 kg P2O5 and 0. 3 kg K2O/tree (1,667 trees/ha). Read more


Year of initiation:2006
Year of completion:2012

Interpretive Summary

Nutrient Management and Balanced Fertilization in Apple and Kiwi in Shaanxi, 2012 Trials were conducted in 2012 in Shaanxi Province to evaluate the effect of balanced fertilization on yield and quality of kiwi and drip-irrigated apple. The first experiment was conducted in a 10-year old apple orchard in Fengxiang County, where the nutrient recommendation was 0. 6 kg N, 0. 24 kg P2O5 and 0. 3 kg K2O/tree (1,667 trees/ha).

Nutrient Management and Balanced Fertilization for Major Crops in Shaanxi, 2011 Experiments in 2011 focused on water and nutrient interaction in apple and NPK application ratio in kiwi in Shaanxi Province. The nutrient and water interaction research was conducted in a 9-year-old Fuji apple orchard (1,667 trees/ha) at Fengxiang County and a 5-year-old Fuji apple orchard (1,667 trees/ha) at Pucheng County. At the nutrient recommendation of 0. 6-0. 24-0.

Nutrient Management and Balanced Fertilization for Major Crops in Shaanxi, 2010 Experiments in 2010 targeted nutrient management techniques for improved yield and quality in apple, kiwi, wheat, and corn in Shaanxi Province. The nutrient recommendation for a 16-year-old apple orchard at Heyang County was 0. 6-0. 24-0. 3 kg N-P2O5-K2O/tree (1,667 trees/ha). Two-thirds of the N was applied basally, after harvest, and the remainder was topdressed the following spring.

Nutrient Management and Balanced Fertilization for Major Crops in Shaanxi, 2009 Experiments were conducted in three counties within Shaanxi Province studying the effects of nutrient management on yield and quality of apple and kiwi, biomass and nutrient uptake by grape, as well as yield and nutrient uptake by potato. The recommended rates for a 10-year old apple orchard at Heyang County were determined to be 0. 6-0. 24-0. 3 kg N-P2O5-K2O/tree (1,667 trees/ha).

Nutrient Management and Balanced Fertilization for Major Crops in Shaanxi, 2008 Imbalanced use of nutrients in Shaanxi Province has restricted crop yield and quality of apple, kiwi, chili pepper, and corn — all major crops in the province. A series of field experiments were arranged to determine the nutrient limitations and best application rates and timings for high nutrient use efficiency. Balanced use of N, P, and K in apple at Heyang County was determined to be 0. 4-0. 24-0.

Research and Extension of Balanced Fertilization Technology on Major Crops in Shaanxi, 2007 Apple, kiwi, wheat, corn, and potato are major crops in Shaanxi Province. Imbalanced use of N, P, and K has restricted yield and quality in these crops, thus a group of field experiments were arranged in the counties of Heyang (apple), Zhouzhi (kiwi), Fufeng (wheat and corn), Weinan, and Mizhi (potato).

Research and Extension of Balanced Fertilization Technology on Major Crops in Shaanxi, 2006 Apple, grape, kiwi, pepper, and corn are major crops in Shaanxi Province. Apple is particularly important with 430,000 ha planted and an output of 5. 6 million metric tons (M t), accounting for 23% of China’s total production. Balanced fertilization experiments were arranged in Fufeng, Fengxiang, Heyang, Zhouzhi, and Yangling counties.

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Project Leader

Yan'an Tong, College of Resources and Environment, Northwest A & F University


Project Cooperators

Yimin Gao
Shulan Zhang
Ruliang Liu


IPNI Staff

S. Li


Location

Asia \ Eastern Asia \ CHN \ Shaanxi


Topics

nutrient removal

apple, kiwi

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