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作 者 ：陈明昌1;许仙菊2;张强1;杨治平1;程滨1;刘平1;李磊1

期 刊 ：植物营养与肥料学报 2005年 11卷 2期 页码：236-242

关键词：保护地番茄；磷钙配合；钾钙配合；钙吸收；钙素利用率；

Keywords:tomato in greenhouse, cooperation of phosphorus and calcium, cooperation of potassium and calcium, (calcium absorption, ) utilization ratio of calcium,

摘 要 ：采用随机区组设计方法研究了石灰性土壤磷、钾与钙配合对保护地番茄钙吸收的影响,并利用差值法计算了钙的利用率。研究结果表明,CaP₁和CaK₂处理最佳,可以显著提高保护地番茄总吸钙量和果实吸钙量,提高钙的利用率;与单纯施钙处理相比,钙的利用率分别提高10.3和16.1个百分点,同时,CaP₁和CaK₂处理能明显改善保护地番茄生物学特性,显著提高番茄果实产量;与单施钙处理相比,番茄的果实产量分别提高了16.1%和22.9%。研究结果同时证明钙磷配合或钙钾配合施用可以提高番茄果实中Vc的含量、糖分含量,降低酸度含量和脐腐病果的数量,明显地改善果实的品质。

Abstract:An experiment was conducted to determinate effects of P, K cooperated with Ca on Ca absorption of tomato on a calcareous soil in Greenhouse. The utilization ratio of Calcium was studied using differential method. The experimental design was random block design. Results showed that treatments of CaP₁ and CaK₂ were best among all treatments. In treatment CaP₁ and CaK₂, the quantity of total Ca absorption and Ca absorption in fruit were significantly promoted, and the utilization ratio of Calcium was improved. Comparing with the treatments of CaP₀ and CaK₀, the utilization ratio of Calcium in treatment of CaP₁ and CaK₂ increased by 10.3% and 16.1% separately. Meanwhile, biological properties of tomato was improved and the tomato fruit yield was increased markedly. The increment of yield was 16.1% and 22.9% for treatment of CaP₁ and CaK₂ respectively, comparing with the treatment of single applying Calcium. The experiment (also) indicated that CaP₁ and CaK₂ could increase Vc and sugar content in tomato fruits, reduced the acidity in tomato fruit and the quantity of the rotten fruit. We can concluded that P, K cooperated with Ca could significantly improve the (quality) of the tomato fruit.

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