有机和有机无机结合施肥对设施栽培西瓜产量和品质的影响

The effects of organic and inorganic fertilizers on the yield and fruit quality of watermelon cultured in plastic tunnel

试验结果表明,单施有机肥易导致西瓜苗期生长不良,果实不能充分膨大,产量偏低,经济效益差;单施无机肥则使果实可溶性固行物含量下降,硝酸盐含量增高,导致果实品质下降;有机肥与无机肥合理施用,不仅能有效提高西瓜果实中可溶性固形物含量,降低硝酸盐的含量,而且能显著提高西瓜的坐果率和产量,从而增加经济效益,并且显著提高了西瓜植株的抗逆性。

The experiment of watermelon yield and quality was carried out under a plastic tunnel in order to compare effects of organic and inorganic fertilizers and their combination on watermelon. The results showed that applying only organic fertilizer easily led watermelon seedlings to grow poor and their fruits not to expand well, and so a low yield and bad economic profit were gained. Applying only chemical fertilizer could make the content of soluble solids of fruit decrease and the nitrate content increase, and so the fruit quality lowered. But rationally applying organic fertilizer and chemical fertilizer could not only effectively increase the content of soluble solids and reduce the nitrate content, but also significantly improve the fruit set percentage and the fruit yield as well as the economic profit. Also the rational application could significantly improve the adverse resistance of watermelon plants.