有机无机复混肥不同配比及施用方式对樱桃番茄生长、产量和品质的影响

以猪粪堆肥为原料,设置高氮、高磷和高钾的有机无机复混(散混)肥处理,以及分2次施用的高氮处理和颗粒态高氮处理,研究了这些不同养分配比和施肥方式对盆栽条件下樱桃番茄生长状况、产量和维生素C、硝酸盐及可溶性糖含量等品质的影响.结果表明,施磷量为每千克土P2O5 0.2 g的各肥料处理,樱桃番茄幼苗的生长受到磷营养不足的抑制,犯磷量为每千克土P2O5 0.3 g的高磷处理幼苗生长良好,各处理在每千克土追施P2O5 0.1 g后磷的限制作用得以解除;在不同养分配比及不同施用方式中,高钾处理(每千克土N 0.2 gP2O5-0.3 g)和在苗期、初果期分2次施用的高氮处理(每千克土N 0.3 g-P2O5 0.3 g-K2O 0.2 g)取得了产量和品质俱佳的效果,即在保证土壤不缺磷的条件下,增施钾肥和分2次施用氮肥,盆栽樱桃番茄可获得优质高产.

Effects of Organic-inorganic Compound Fertilizer and Methods of Fertilization on the Growth,Yield and Quality of Mini-tomato

The growth status,yield and quality of mini-tomato,including the content of vitamin C,nitrate,and soluble sugar under different organic-inorganic compound fertilizer treatments were investigated.Treatments include high nitrogen,high phosphorus,high potassium,and high nitrogen fertilized twice and fertilized in granular form.The results indicated that the growth of mini-tomato seedling was repressed to some extent when phosphorus application amount was P2O5 0.2 g/kg soil in the fertilizer,but the seedling gr...