摘要
为探索硫酸钾对蔬菜产量及品质的影响 ,1998年分别在罗甸县龙坪镇及边阳镇、贵阳市乌当区永乐镇对辣椒、豇豆和西红柿进行了硫酸钾肥效试验。通过不同的施用方法如基施和喷施 ,证实硫酸钾对贵州省辣椒、豇豆和西红柿的产量及品质有影响。试验证明 ,无论基施还是喷施硫酸钾都有很好的增产增收效益 ,能改善蔬菜果实的品质 ,提高商品价值 ,有极好的推广应用前景。通过试验 ,建议在生产上 ,硫酸钾适宜用量辣椒基施为 375kg/ hm2 ,在氮磷钾施用基础上喷施可溶性硫酸钾 ,浓度以辣椒 4 %、豇豆 3%、西红柿 4 %为宜。
Potassium plays a important role in green pepper, cowpea and tomato production in Guizhou province. It is able to affect not only the vegetable building facts but also the yield building facts for increasing the yields and improving the qualities. From the comprehensive estimation of the experiment results the optimum amounts of potassium fertilizers applications are 375 kg/ha for green pepper or 4% soluble K 2SO 4 added to the basal fertilization of N, P, K for green pepper, and 3% soluble K 2SO 4 added to the basal fertilization of N, P, K for cowpea, and 4% soluble K 2SO 4 added to the basal fertilization of N, P, K for tomato in Guizhou province.
出处
《贵州农业科学》
CAS
2000年第4期40-42,共3页
Guizhou Agricultural Sciences
基金
法国松鹤公司资助
