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研究了4种有机基质不同配比对大白菜产量、品质和重金属含量的影响,结果表明:与CK处理相比,不同配比的有机基质都能显著增加大白菜的产量,产量高低的顺序为:T4>T3>T2>T1>CK,增产幅度在34.85%-76.92%,其中T4处理下大白菜产量最大(113.53t/hm2),T1处理条件下最低(86.53t/hm2);粗蛋白、可溶性糖、Vc含量和硝酸盐含量的高低顺序分别为:T4>T2>T3>T1>CK;CK>T2>T1>T3>T4;CK>T1>T2>T3>T4;T4>T3>T2>T1>CK;CK>T1>T2>T3>T4,增加幅度分别为25%-71%、10.15%-25.19%、31.66%-39.97%,硝酸盐含量显著降低,降低幅度为8.83%-20.37%;大白菜植株重金属Cr、Pb、Cd、As和Hg含量的高低顺序分别为:T4>T2>T3>T1>CK;CK>T2>T1>T3>T4;CK>T1>T2>T3>T4;T4>T3>T2>T1>CK;T4>T3>T2>T1>CK,其中Cr、As和Hg的增加幅度分别为30%-80%、34.84%-55.20%和18.18%-72.73%,只有Pb和Cd随着有机基质的施用量增加而降低,降低幅度分别为2.29%-5.36%、16.78%-33.22%;大白菜产量与粗蛋白、可溶性糖和维生素C含量显著正相关(r=0.9423*,0.9959***,0.9297*),与硝酸盐含量显著负相关(r=0.9780**);与铬、砷和汞的含量显著正相关(r=0.9016*,0.9755**,0.9586*),与铅和镉含量显著负相关(r=-0.9597**,-0.9393*)。综合产量、品质和重金属含量指标来看,在我们设计的几个处理中T4(V(腐熟鸡粪):V(草木灰):V(微生物菌肥)=2:2:2)处理相比于其他处理效果最佳,能够显著增加大白菜的产量和品质且产量与品质及重金属含量显著相关。
The effects of different ratios of four kinds of organic matrices on the yield, quality and heavy metal content of Chinese cabbage were studied. The results showed that compared with CK, the organic matrices with different ratios could significantly increase the yield of Chinese cabbage. The order of the yield was : T4> T3> T2> T1> CK, yield increased 34.85% -76.92%, in which the yield of Chinese cabbage under T4 treatment was the highest (113.53t / hm2), the lowest under the treatment of T1 (86.53t / The sequence of soluble sugar, Vc content and nitrate content were T4> T2> T3> T1> CK; CK> T2> T1> T3> T4; CK> T1> T2> T3> T4; > T1> CK> CK> T1> T2> T3> T4, respectively. The increase range was 25% -71%, 10.15% -25.19%, 31.66% -39.97%, and the nitrate content was significantly reduced by 8.83% -20.37 %; The contents of Cr, Pb, Cd, As and Hg in the Chinese cabbage plants were higher in the order of T4> T2> T3> T1> CK,> CK> T2> T1> T3> T4, T3> T2> T1> CK, T4> T3> T2> T1> CK, respectively. The increases of Cr, As and Hg were 30% -80%, 34.84% -55.20% and 18.18% -72.73% , Only Pb and Cd decreased with the increase of organic substrate application, the decreasing range was 2.29% -5.36% and 16.78% -33.22% respectively. The yield of Chinese cabbage was significantly correlated with crude protein, soluble sugar There was a significant positive correlation (r = 0.9423 *, 0.9959 ***, 0.9297 *) between vitamin C content and nitrate content (r = 0.9780 **), and a significant positive correlation with chromium, 0.9016 *, 0.9755 **, 0.9586 *), and had a significant negative correlation with lead and cadmium contents (r = -0.9597 **, -0.9393 *). In terms of comprehensive yield, quality and heavy metal content indicators, T4 (V (decomposed chicken manure): V (ash): V (microbial fertilizer) = 2: 2: 2) The other treatment effect is the best, can significantly increase the yield and quality of Chinese cabbage and yield and quality and heavy metal content was significantly related.