不同含氮化合物溶液浸润对辣椒幼苗生长的影响

Influence of Soaking of Different Nitrogen Reagents on Chili Seeding Growth

【目的】研究不同含氮化合物对辣椒幼苗生长的影响。【方法】实验采用二因素四水平正交试验设计,通过对不同时期幼苗的性状指标,出苗率、叶绿素相对含量、株高、茎粗、节间长度、整齐度、真叶数、根冠鲜重比、壮苗指数等研究硝酸钾、硝酸铵、硝酸钙、尿素,四种浓度试剂(0.05%、0.1%、0.15%、0.2%)对辣椒幼苗生长的影响。【结果】0.05%的硝酸钾对辣椒幼苗生长的各个指标有较好的影响。【结论】辣椒播种后对基质进行浸润可以选用0.05%的硝酸钾。

[ Objective] To study the effects of differentused to infiltrate the substrate after seeding on chili seedlingconcentrations of different reagents that are beinggrowth. [ Method ] Four level orthogonal experi-mental design with two factors were used. Through seedling morphological indexes of different periods, such asseedlingemergence, chlorophyll relative content, plant height, stem thickness, intemode length, evennessdegree, leaf number, roots and crowns fresh weight ratio and sound seedling indexes, the effects of 4 reagents（ KNO3, NHNO3 and Ca（ NO3 ）2, CONzH4 ） and 4 concentrations in chili seedling growth were measured.[ Result] The experimental results showed that 0.05% of potassium nitrate had a better effect on every indexof chili seedling growth. [ Conclusion] 0.05% of potassium nitrate can be selected in infiltration of substrateafter the seeding of chili pepper.