Effect of NPK Nutrient on Yield of Castanea mollissima BL(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Author(s):: ZHANG Rui¹; ZHANG Guo-zhen²; WEI An-zhi³; LV Ping-hui⁴; HE Jia-lin⁴; JI Zhi-ping⁴; 1.College of Foods Science and Engineering，Northwest Science and Technology University of Agricultural and Forestry，Yangling，Shaanxi 712100；
2.Yangling Vocational and Technology College，Yangling，Shaanxi 712100；
3.College of Life Science，Northwest Science and Technology University of Agricultural and Forestry，Yangling，Shaanxi 712100；
4.College of Forestry，Northwest Science and Technology University of Agricultural and Forestry，Yangling，Shaanxi 712100

Keywords:: Castanea mollissima BL(chestnut); regression model of fertilizer; balanced fertilizers

Abstract:: With Castanea mollissima BL as materials，the yield of chestnut on different NPK fertilizers were studied.Model of characteristics graph relations that the one nutrient and two nutrient effect to Chinese chestnut’s yield were analyzed.The results showed that all can increased yield of the chestnut it were nitrogen and phosphorus and potassium.Maximum amount of fertilizers：the nitrogen 1.61 kg per tree；the phosphorus 1.56 kg per tree;the potassium 1.66 kg per tree.It had nutrition interaction effect it was the nitrogen and potassium，the nitrogen and phosphorus，the phosphorus and potassium between for the chestnut.N∶K₂O=0.8∶1.0.Maximum amount of fertilizers：the nitrogen 0.8 kg per tree and potassium 1.0 kg per tree；It added to 1.8 kg per tree.N∶P₂O₅=0.8∶1.0.Maximum amount of fertilizers was 1.8 kg per tree.P₂O₅∶K₂O=0.35∶0.4.Maximum amount of fertilizers was 0.75 kg per tree.Maximum amount of fertilizers of the nitrogen and phosphorus and potassium was the N 1.543 kg per tree，P₂O₅ 1.349 kg per tree，K₂O 1.288 kg per tree.It was yield of intent 4.61 kg.

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Last Update: 2014-09-01