Influence of various rates of copper sulfate and complete fertilizer on the yield, market and storage quality of onion
Date
1972
Authors
Songdej Panichamitr
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Abstract
Application of complete fertilizer (12-24-12) at the rate of 400 to 600 kg/ha in combination with different concentrations of copper sulfate showed comparable effects on the growth and yield of two onion varieties. It appeared that yield increased with increasing rate of fertilizer. Yellow Excel produced significant yield over Red Creole. However, in terms of keeping quality, Red Creole was more superior over that of Yellow Excel after three months storage, irrespective of fertilizer treatments. The lots treated with copper sulfate had apparently better bulb weigjht after storage. However, storing quality w.