Incorporation of Crotalaria spectabilis Grown at a High Seeding Rate Inhibits the Growth of the Succeeding Wheat Crop
Incorporation of Crotalaria spectabilis Grown at a High Seeding Rate Inhibits the Growth of the Succeeding Wheat Crop
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掺入高播种量的猪屎豆会抑制后续小麦作物的生长
DOI：
10.1046/j.1439-037x.2000.00425.x
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发表时间：
2000
影响因子：
3.5
通讯作者：
S. Kotoura
中科院分区：
文献类型：
--
作者：
H. Daimon;S. Kotoura
采用盆栽试验研究了绿色肥种植猪屎豆的播种量对后茬小麦生长和氮素吸收的影响。不同处理间的干重（g m-2）和含氮量（mg m-2）差异不显著。播种后110 d，在低密度（LD）、中密度（MD）和高密度（HD）3种播种量（1g m-2、5g m-2和10 g m-2）下，均能产生大量的小孢子。LD植株和MD植株的总碳和氮含量没有显著差异，其值均略高于HD植株。所有植物组的C/N比为20-21。材料以100 g鲜重/罐的比率掺入，该罐填充有原生土壤。这种掺入显着增加小麦干重和氮吸收。然而，在播种后80天和120天，HD植物掺入的值显著低于LD和MD植物掺入的值。在生长袋实验中发现，用HD植物的水提取物生长的小麦的干重和总根长减少。
The effect of the seeding rate of Crotalaria spectabilis grown as green manure on the growth and nitrogen uptake of the succeeding wheat crop was examined in a pot experiment. No significant differences in the dry weight (g m -2 ) or nitrogen content (mg m -2 ) of C. spectabilis among three seeding rates [low density (LD), 1 g m -2 ; medium density (MD), 5 g m -2 and high density (HD), 10g m -2 ] were found at 110 days after seeding. There was no significant difference in the total carbon and nitrogen contents of the incorporated material between LD plants and MD plants, values for which were both slightly higher than those for the HD plants. The C/N ratio was 20-21 in all groups of plants. Material was incorporated at a rate of 100 g fresh weight per pot filled with virgin soil. This incorporation significantly increased wheat dry weight and nitrogen uptake. However, values for HD plant incorporation were significantly lower than those for LD and MD plant incorporation at 80 and 120 days after seeding. A reduction of the dry weight and total root length of wheat grown with aqueous extracts of HD plants was found in a growth pouch experiment.
影响因子：
5.8
作者：
W. Lafranconi;R. Huxtable
通讯作者：
W. Lafranconi;R. Huxtable