Nutrient Management Strategies for Guizhou

IPNI-1999-CHN-GZ12

1999-Nutrient management strategies in Guizhou province The two photos below show effect of KCl on corn yield (left) and a Harvest Field Day. Read more


Year of initiation:1999
Year of completion:2005

Interpretive Summary

Nutrient Management Strategies for Paddy Rice and Upland Corn in Guizhou, 2005 The monitored village in Pinba County was established in 2001 and over the past 5 years soil nutrient limitations were determined, soil nutrient variability was mapped, and balanced fertilization [nitrogen (N), phosphorus (P), and potassium (K) BF] experiments and field demonstrations were conducted.

Nutrient Management Strategies in Guizhou, 2004 The monitored village site in Pinba County was set up to define the site-specific nutrient management zones for this region. Initial soil testing in 2001 determined that upland soils were extremely deficient in potassium (K) and nitrogen (N), while paddy soils were largely deficient in K, phosphorus (P), and N. Balanced fertilization experiments and field demonstrations were continued in 2004 to verify soil test results.

Nutrient Management Strategies in Guizhou, 2003 The Pinba County monitored village site will define the site-specific nutrient management zones for this region. Soil nutrient limitations were determined through soil testing in 2001 and soil nutrient variability was digitally mapped in 2002. Soil testing determined that upland soils were extremely deficient in potassium (K) and paddy soils were largely phosphorus (P) deficient.

Nutrient Management Strategies in Guizhou, 2002 . Initiated in 2001, this project’s objective is to track soil variability between and within villages and among village fields. These data combined with field trials and fertilizer use surveys will be used to improve fertilizer use for high yield, high benefit crop production. The major crops grown are wheat/rapeseed-paddy rice and wheat/rapeseed-corn in upland fields.

Nutrient management strategies in Guizhou province, 2001 This monitored village study in Pinba county, Guizhou province, is a part of the Nutrient Management Strategies for Sustainable Agriculture in China project. The objective is to track soil nutrient variability between villages and among fields within each village.

Nutrient management strategies in Guizhou province, 1999 In Guizhou province, balanced fertilizer treatment with 150-100-250-35 kg N-P2O5-K2O-Zn/ha vs. farmer’s practice (K0) increased corn yield by 2790 kg/ha (26. 8%) in Weiling county. In Changshun county, high K treatment (120 kg/ha) increased corn yield by 730 kg/ha or 5. 24% vs. low K treatment (60kg/ha) and by 2490 kg/ha vs. K0 treatment. The treatment with 94-94-120-30-30 kg N-P2O5-K2O-ZnSO4-Borax/ha vs.

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Updates & Reports

2005

Effect of KCl on corn yield

2001

1999-Nutrient management strategies in Guizhou province


Project Leader

Yin Dixin, The Agri. Information Institute, Guizhou Academy of Agri-Sciences


Project Cooperators

None


IPNI Staff

Shihua Tu


Location

Asia \ Eastern Asia \ CHN \ Guizhou


Topics

4r rate, balanced nutrition

maize

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