巢湖流域减量施肥对番茄产量品质和土壤硝态氮的影响

为了研究巢湖流域适度减量施肥的可行性，笔者通过田间试验，研究了减量施肥配施氨基酸水溶肥料和微肥对番茄产量、内在品质以及氮磷钾吸收的影响。结果表明，减量施肥配施氨基酸水溶肥料以及微肥不仅能够保证番茄稳产，而且能对番茄的口感、植株的生长起到积极推进作用。与习惯施肥相比，85%施肥、75%施肥可使番茄产量分别提高24.3%、3.8%，65%施肥处理使番茄产量降低8.2%；使番茄果实中硝酸盐含量分别降低9.01%、6.12%、10.44%；使0~20 cm番茄收获后，土样中硝态氮含量分别降低58.34%、15.00%、40.99%；使0~20 cm番茄收获后，土样中有效磷含量分别降低32.04%、31.72%、30.69%。其中，以85%减量施肥处理效果最佳，达到番茄增产、减少养分流失的目的。

The Effect of Reducing Fertilizer Application on Tomato Production, Quality and Soil Nitrate in Chaohu Lake Basin

In order to research the feasibility of moderate reduction fertilization in Chaohu Lake basin,a field experiment was conducted to study the effects of reducing fertilizer with amino acids in water-soluble fertilizer and trace element fertilizer application on tomato production,quality and NPK absorption.The results showed that:reducing fertilizer with amino acids in water-soluble fertilizer and trace element fertilizer was not only to ensure stable production of tomato,but also played an active role in prom...