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不同施肥情况对番茄养分吸收及产量的影响
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作者 热西代·乃吉米丁 《农家致富顾问》 2019年第16期44-45,共2页
本文针对不同施肥情况,对番茄养分吸收及产量的影响进行了详细的分析,探究番茄植物生长过程中所需要的相关营养肥料.对硝态氮与酰胺态氮分别进行不同的配比试验,对两者的实验结果综合分析,是否对番茄植物的生长与产量品质产生影响,为整... 本文针对不同施肥情况,对番茄养分吸收及产量的影响进行了详细的分析,探究番茄植物生长过程中所需要的相关营养肥料.对硝态氮与酰胺态氮分别进行不同的配比试验,对两者的实验结果综合分析,是否对番茄植物的生长与产量品质产生影响,为整个实验提供着重要的科学理论依据. 展开更多
关键词 不同施肥情况 番茄养分吸收 产量影响
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Effect of CO_2 Enrichment on the Growth and Nutrient Uptake of Tomato Seedlings 被引量:13
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作者 LI Juan ZHOU Jian-Min +2 位作者 DUAN Zeng-Qiang DU Chang-Wen WANG Huo-Yan 《Pedosphere》 SCIE CAS CSCD 2007年第3期343-351,共9页
Exposing tomato seedlings to elevated CO2 concentrations may have potentially profound impacts on the tomato yield and quality. A growth chamber experiment was designed to estimate how different nutrient concentration... Exposing tomato seedlings to elevated CO2 concentrations may have potentially profound impacts on the tomato yield and quality. A growth chamber experiment was designed to estimate how different nutrient concentrations influenced the effect of elevated CO2 on the growth and nutrient uptake of tomato seedlings. Tomato (Hezuo 906) was grown in pots placed in controlled growth chambers and was subjected to ambient or elevated CO2 (360 or 720μL L-1) and four nutrient solutions of different strengths (1/2-, 1/4-, 1/8-, and 1/16-strength Japan Yamazaki nutrient solutions) in a completely randomized design. The results indicated that some agricultural characteristics of the tomato seedlings such as the plant height, stem thickness, total dry and fresh weights of the leaves, stems and roots, the G value (G value = total plant dry weight/seedling age), and the seedling vigor index (seedling vigor index = stem thickness/(plant height×total plant dry weight) increased with the elevated CO2, and the increases were strongly dependent on the nutrient solution concentrations, being greater with higher nutrient solution concentrations. The elevated CO2 did not alter the ratio of root to shoot. The total N, P, K, and C absorbed from all the solutions except P in the 1/8- and 1/16-strength nutrient solutions increased in the elevated CO2 treatment. These results demonstrate that the nutrient demands of the tomato seedlings increased at elevated CO2 concentrations. 展开更多
关键词 CO2 enrichment nutrient strength nutrient uptake tomato seedlings
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