|
|
|
Interpretive Summaries:
2007 - Effect of Balanced Fertilization on Cape Jasmine Yield and Quality in Jiangxi
2006 - Effect of Balanced fertilization on Yield and Quality of Cape Jasmine in Jiangxi
2005 - Effect of Balanced Fertilization on Cape Jasmine Yield and Quality in Jiangxi
Effect of Balanced Fertilization on Cape Jasmine Yield and Quality in Jiangxi, 2005
Cape jasmine is a famous traditional Chinese medical herb grown in Jiangxi Province. Its planting area covers 10,667 ha or 70% of the crop's total area in China. It is estimated that its planted area will expand to 16,667 ha by 2008. The present level of management for Cape jasmine production is unorganized. A study on the nutritional characteristics was initiated in 2004 and high yield, high quality field experiments were continued in 2005.
According to the farm soil survey, high yielding Cape jasmine occurred on fields with relatively high soil fertility, neutral soil acidity, and relatively high contents of soil available calcium (Ca), magnesium (Mg), potassium (K), phosphorus (P), etc., while the medium and/or low yielding fields had acidic soils and low available nutrient contents. Initial balanced fertilization (BF) experiments included six treatments with two P levels, four K levels, and a common farmer practice (FP) treatment. The rates were 300 kg nitrogen (N)/ha, 90 and 180 kg P2O5/ha, 0, 120, 240, and 360 kg K2O/ha. The FP treatment used 15-15-15 compound fertilizer at 750 kg/ha (113-113-113 kg N-P2O5-K2O/ha). No differences among treatments were oberved in the first year. In the second year, the optimum treatment (OPT; 300-180-360 kg N-P2O5-K2O/ha) produced 6.6 t/ha; 7% higher than FP and 19% higher than the treatment supplying 300-90-0 kg/ha. A separate field experiment compared the OPT against treatments utilizing FP, pruning, manure, water management, and green manure crops. The OPT produced 9.7 t/ha which was 21.2%, 22%, 11.7%, 9.2%, and 19% higher, respectively, than the other treatments. Jiangxi-24
|
|
