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Studies on Optimal Applying Quantity of Fertilizer Specially Used for Eco-organic Soilless Eggplant Cultivation for
Best Economic Efficiency |
QIN Jia-hai1,3,WANG Duo-cheng2,XIAO Zhan-wen1,3,CHEN Ye1,3,WANG Zhi-jiang3,WANG Jin3 |
1Key Laboratory of Western Resources and Environmental Chemistry,Hexi College,Zhangye 734000,Gansu,China;2Furfural
Factory,Zhangye Branch of Beijing Denong Seed Company,Zhangye 734000,Gansu,China;3Institute of Agronomy,Hexi
College,Zhangye 734000,Gansu,China |
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Abstract In the solar greenhouse,adopting eco-organic soilless cultivation model,the suitable dosage of specially
used fertilizer for eggplant was studied.The results showed that with the increase amount of this speeially used
fertilizer,the plant height,single fruit weight,yield per plant and average plot yield increased.But the production
increasing effect per unit fertilizer decreased.According to regression statistical analysis,the best fertilizer
applying quantity for eggplant was 0.098 kg·m-2(N 19 %,P2O5 6 %,K2O 25 %),the theoretical yield was 9.10 kg·m-2
(discount 91 t·hm-2).The results of statistical analysis inosculated with that of the field experiments.
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Received: 23 November 2008
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