钾肥对秋大棚番茄产量及效益的影响

番茄秋大棚生产条件下,从底肥、追肥2个方面研究了硫酸钾肥对番茄产量和经济效益的影响,结果显示,在底肥施用大德金肥250kg/667m2、追肥时配施二铵20kg/667m2的情况下,以基施硫酸钾20kg/667m2,并分别于第1穗果膨大、第2穗果膨大以及第1穗果采收期各追施硫酸钾肥5kg/667m2的处理组合产量和效益最好,分别较空白对照增产12.2%、增效10.2%。

Influence of Potash Fertilizer on Yield and Efficiency of Autumn Greenhouse Tomato

The influence of potassium sulphate fertilizer on yield and efficiency of tomato has been studied from two aspects of base fertilizer and top dressing under the conditions of autumn greenhouse.The results show that if base fertilizer rate of Dadejin is 250 kg/667 m2、 top dressing fertilizer rate of ammonium phosphate is 20 kg/667 m2,the production and Effectiveness with processing combinations of top dressing fertilizer rate of potassium sulphate fertilizer about 5 kg/667 m2 in fruit enlargement of No.1、 2 and harvesting period of No.1 fruit enlargement is the best,it is respectively upto the 12.2 percent increase,10.2 percent efficiency than blank test.