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Effects of Magnesium Fertilizer on Growth and Potassium and Calcium Uptake in Tomato Under Solar Greenhouse

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年05
Page:
60-68
Research Field:
Publishing date:

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Title:
Effects of Magnesium Fertilizer on Growth and Potassium and Calcium Uptake in Tomato Under Solar Greenhouse
Author(s):
ZHANG Tianyi1; LI Huixia1; ZHANG Xueke2; MA Jianmei1; YANG Wenqin1
(1.School of Agronomy,Ningxia University,Yinchuan,Ningxia 750021;2.School of Civil and Hydraulic Engineering,Ningxia University,Yinchuan,Ningxia 750021)
Keywords:
tomato; magnesium fertilizer; grow; K-Mg interaction; Ca-Mg interaction
PACS:
-
DOI:
10.11937/bfyy.20214092
Abstract:
Tomato was used as the test material,and no magnesium fertilizer was used as the control (CK),and 15,30,45 kg?hm-2 and 60 kg?hm-2 four magnesium fertilizer treatments were set (referred to as Mg-1,Mg-2,Mg-3 and Mg-4),the effect of applying magnesium fertilizer on tomato growth,physiological and biochemical characteristics and nutrient absorption of potassium,calcium and magnesium were studied,in order to provide an important theoretical and practical basis for the comprehensive regulation and utilization of vegetable nutrients under facility conditions.The results showed that,1) the Mg-2 treatment plant height was 12.75% lower than CK,but the leaf area was larger;the leaf biomass Mg-2 treatment was the largest,and it was average increased by 54.67% higher than CK and Mg-4;2)Mg-1,Mg-2 Pn,Tr were average increase respectively 30.85%,29.58% higher than CK ,Ci of each treatments was average increased by 52.09% higher than CK.There was no difference for the activity of superoxide dismutase (SOD) processed with Mg-1,Mg-2 and Mg-3.However,the activity was significantly higher for the process of Mg-1 compared with the process of CK and Mg-4.And it was quite the opposite for malondialdehyde (MDA);The activity of peroxidase (POD) was gradually enhanced with the increase of magnesium.3) With the regard to the absorbability of magnesium,potassium,and calcium for the whole tomato plant,Mg-1,Mg-2,and Mg-3 are all higher than CK and Mg-4 for the process.However,there was no significant difference for the three,magnesium in the tomato leaf,potassium,and calcium were in a significant positive correlation.There fore,we could learn that soil of calcaric property with the addition of magnesium would enhance the growth of tomato,photosynthetic parameters to significantly influence the activity of enzyme;It would enhance the absorption of tomato for magnesium,potassium,and calcium.Under the condition of solar greenhouse and low soil potassium content,the amount of magnesium application was more suitable at 30-45 kg?hm-2.

References:

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Last Update: 2022-05-23