有机颗粒肥施入量对穴盘辣椒幼苗生长的影响

Effect of Amount of Organic Granular Fertilizer Application on Growth of Plug Pepper Seedling

【目的】筛选出适合穴盘辣椒生长的有机颗粒肥施入量,为育苗过程中减少营养液使用及培育健壮辣椒幼苗提供参考。【方法】瑞霸5号为材料,以有机颗粒肥为变量,在椰槺∶蛭石=3∶1(体积比)复合基质中分别加入不同体积比的有机颗粒肥,并以浇灌日本园试通用配方营养液为对照,测定幼苗生长指标、同化物积累及生理指标,分析有机颗粒肥施入量对辣椒幼苗生长的影响。【结果】各处理对辣椒幼苗的生长都有影响,其中,T4幼苗生长最好,出苗率最高为100%,根系活力为0.65 g/(g·h),G值为10.91 mg/d,壮苗指数为0.30,可溶性蛋白含量为22.71 mg/g,可溶性糖含量为6.81 mg/g,叶绿素含量为1.247 mg/g;T7幼苗生长的相较对照而言最差,出苗率为82.18%,根系活力为0.37 g/(g·h),G值7.49 mg/d,壮苗指数为0.18,可溶性蛋白含量为10.08 mg/g,可溶性糖含量为3.52 mg/g,叶绿素含量为0.900 mg/g。【结论】在辣椒穴盘育苗过程中复合基质中加入适量的有机颗粒肥,有助于辣椒幼苗的生长,其中采用复合基质T4(椰糠∶蛭石∶有机颗粒肥=3∶1∶2,即复合基质中含有300 kg/m 3有机颗粒肥)育苗,辣椒幼苗长势最好,可在生产中推广应用。

【Objective】To screen out the amount of organic granular fertilizer suitable for the growth of pepper in the tray in the hope of providing reference for the cultivation of robust pepper seedlings raising in the process of reducing nutrient solution.【Methods】In this experiment,Ruiba No.5 was used as the test material,and organic granular fertilizer was used as the variable.In the coconut coir∶vermiculite=3∶1(volume ratio)composite matrix,different volume ratios of organic granular fertilizer were added respectively,and watering was carried out.The Japanese garden test general formula nutrient solution was used as the control.The effects of organic fertilizer application on the growth of pepper seedlings were studied by measuring the growth index,assimilates accumulation and physiological indexes of seedlings.【Results】The results showed that each treatment had an effect on the growth of pepper seedlings.Among them,T4 treatment seedlings had the best growth,the highest emergence rate was 100%,the root activity was 0.65 g/(g·h),and the G value was 10.91 mg/d.The seedling index was 0.30,the soluble protein content was 22.71 mg/g,the soluble sugar content was 6.81 mg/g,and the chlorophyll content was 1.247 mg/g.The growth of T7 treatment seedlings was the worst compared with the control,and the emergence rate was 82.18%.The vigor was 0.37 g/(g·h),the G value was 7.49 mg/d,the seedling index was 0.18,the soluble protein content was 10.08 mg/g,the soluble sugar content was 3.52 mg/g,and the chlorophyll content was 0.900 mg/g.【Conclusion】In the process of pepper seedling raising,the appropriate amount of organic granular fertilizer was added to the composite substrate to help the growth of pepper seedlings.The composite substrate T4 treatment was used.(coconut coir∶vermiculite∶organic granular fertilizer=3∶1∶2,namely,the rice composite substrate contained 300 kg of organic granular fertilizer pcbm),and the pepper seedlings grew the best,which might be widely used in production.