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Effect of Different N,P,K Dosage on Dry Matter Accumulation and Yield of Onion(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年21期
Page:
12-15
Research Field:
Publishing date:

Info

Title:
Effect of Different N,P,K Dosage on Dry Matter Accumulation and Yield of Onion
Author(s):
SHE PingMAI Zi-zhenMA Jie
Guyuan Agricultural Science Research Institute,Guyuan,Ningxia 756000
Keywords:
NPKoniongrowthdry matteryield
PACS:
S 633.206+.2
DOI:
-
Abstract:
Taking ‘Barton’ onion varieties in the arid zone of middle Ningxia concentric as experimental materials,effects of N,P,K different dosage on growth and yield of onion were studied.The results showed that,T1 (N 15 kg/667m2,P 17.5 kg/667m2,K 20 kg/667m2) had obvious promotion function on onion plant height,leaf number,growth,bulb yield reached 5 580.83 kg/667m2,increased than a local conventional fertilization treatment CK(N 10 kg/667m2,P 12.5 kg/667m2,K 20 kg/667m2,4 478.93 kg/667m2) by 24.6%; yield of T2 (N 20 kg/667m2,P 22.5 kg/667m2,K 30 kg/667m2) treatment reached 4 702.09 kg/667m2,compared with CK increased by 4.98%,compared with T1 reduced by 15.75%.Then the optimized fertilization model of high yield and high efficiency for ‘Barton’ was N 15 kg/667m2,P 17.5 kg/667m2,K 20 kg/667m2,to provide theoretical basis and guidance technology for local onion field cultivation of rational fertilization.

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Last Update: 2014-11-28