造纸干粉和糠醛渣对盐碱地小麦生长的影响

Effects of Dry Powered Sludge and Furfural Residue on Wheat Growth on Saline-alkaline Fields

文章通过在江苏省东台市黄海原种场布置田间试验,研究施用造纸干粉和糠醛渣对滨海盐碱地土壤的调理改良作用及对小麦生长的影响。与对照相比,施加造纸干粉和糠醛渣处理土壤pH均显著降低(P<0.05),而土壤全N含量也显著提高(P<0.05),其中施加造纸干粉处理土壤全K含量显著提高(P<0.05),而施加糠醛渣处理土壤全P含量显著提高(P<0.05)。施加造纸干粉处理小麦地上部和地下部生物量分别提高了49%和93%,平均产量由117 g/m2提高到158 g/m2;而施加糠醛渣处理小麦地上部和地下部生物量则分别显著提高了169%和176%(P<0.05),平均产量亦显著提高至361 g/m2(P<0.05)。此外,对照处理小麦籽粒过高的全P含量(5.5 g/kg)与过低的全K含量(3.2 g/kg)在施加造纸干粉和糠醛渣后均得到显著改善(P<0.05)。结果表明,施加造纸干粉和糠醛渣均可缓解盐碱胁迫对小麦生长及籽粒品质的影响,其中糠醛渣的调理效果优于造纸干粉。

A field experiment conducted in the coastal area of Dongtai City,Jiangsu Province, was carded out to investigate the effects of dry powered sludge （DPS） and furfural residue （Fig） on soil characteristics and wheat growth on a salinealkaline field. Compared with control, both DPS and FR significantly decreased （P〈0.05） soil pH and significantly increased （P〈0.05） soil total nitrogen （N） content. DPS also significantly increased （P〈0.05） soil total potassium （K） content, while FR significantly increased （P〈0.05） soil total phosphate （P） content. DPS increased wheat shoot and root biomasses by 49% and 93% respectively, with grain yield elevated from 117 g/m2 to 158 g/m2, while FR significantly increased （P〈0.05） wheat shoot and root biomasses by 169% and 176% respectively, and significantly elevated （P〈0.05） grain yield to 361 g/ms. Besides, both DPS and FR significantly decreased （P〈0.05） the excessive high level （5.5 g/kg） of total P and significantly increased （P〈0.05） the excessive low level （3.2 g/kg） of total K in wheat grains. It suggested that both DPS and FR could alleviate saline-alkaline stresses on wheat growth and grain quality, while FR played a better role than DPS in enhancing soil quality and grain formation.