不同肥料用量对板栗产量和品质的影响

以15 a生板栗林为对象,采用田间小区试验法开展了不同肥料用量对板栗产量和品质影响的研究。结果表明:相对于不施肥,施肥后板栗的百粒重显著增加,且随着肥料用量增加,其百粒重呈现递增趋势,最大达到1 452 g,但各施肥处理间差异不显著。平均单株产量也在肥料用量最大时达到最大,为9.95 kg左右,但该处理与肥料用量次高处理间差异不显著。不同肥料用量下,板栗还原糖含量为3%～5%,蛋白质含量为6%～8%,淀粉含量为24%～26%。虽然各施肥处理间,板栗还原糖、蛋白质和淀粉含量的差异不显著,但肥料用量最高时,板栗蛋白质含相对较高,而淀粉含量相对较低,表明增加肥料用量能在一定程度上改善板栗品质。

Effects of different fertilizer amount on Chinese chestnut yield and quantity

Abstracts:A field pot experiment was conducted to investigate the effects of different fertilizer amount on the yield and quality of 15 years old Chinese chestnut. The results showed that the weight of 100 seeds increased significantly under the fertilizer application compared to that under no fertilizer. With the increasing amount of fertilizer, the weight of 100 seeds showed an increasing trend, which reached up to 1452 g, while the differences among fertilization treatments were not significant. The average yield per plant also reached the maximum of 9.95kg under the largest amount of fertilizer, but the difference between the treatment and secondary amount of fertilizer treatment was not significant. Under different amount of fertilizer, the percentage of reducing sugar of chestnut was 3%~5%, protein 6%~8%, and starch 24%~26%. Although the percentages of chestnut reducing sugar, protein and starch content had no significant differences under different fertilizer amount, the chestnut contained relatively high protein while relatively low starch under the maximum amount of fertilizer. So it indicated that the quality of chestnut could be improved in some extent with the increasing amount of fertilizer.