Growth and macronutrient accumulation in tomato cultivated in an organic system

IF 0.7 4区农林科学 Q4 HORTICULTURE

Horticultura Brasileira Pub Date : 2023-04-07 DOI:10.1590/s0102-0536-2023-e2532

Lúcia Almeida, A. Cardoso, J. Candian, Hélio Grassi Filho, M. M. P. Sartori

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引用次数: 0

Abstract

ABSTRACT The aim of this study was to characterize the growth and nutrient absorption of ‘Debora Victory’ tomato grown in organic system. The treatments consisted of nine sampling dates, at 2, 32, 46, 60, 77, 91, 109, 122 and 137 days after transplantation (DAT). In the last sampling, plants reached an estimated accumulation of dry and fresh weight in plant shoots of 550 and 9,528 g/plant, respectively. At the end of the cycle, the distribution of dry matter was 73% in the fruits, 16% in the leaves and 11% in the stem. The yield of total fresh fruits was estimated at 154.7 t/ha. The decreasing order of nutrient accumulation in plant shoots was K>N>Ca>P>S>Mg, with estimated values of 22.6; 10.4; 5.0; 2.3; 2.1 and 1.6 g/plant, respectively, corresponding to 431; 198; 95; 44; 40 and 30 kg/ha of K, N, Ca, P, S and Mg, respectively. The decreasing order of nutrient accumulation in the fruits was K>N>P>S>Mg>Ca, with estimated values of 16.6; 8.4; 1.7; 0.8; 0.7 and 0.2 g/plant, respectively, which corresponded to an estimated total extraction of 315; 153; 32; 16; 14 and 3 kg/ha of K, N, P, S, Mg and Ca, respectively. In the last sampling, the greatest accumulation of N, P and K occurred in the fruits and Ca, S and Mg in the vegetative organs (stem + leaves).

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有机栽培番茄的生长与宏量营养素积累

摘要本研究旨在研究“黛博拉胜利”番茄在有机体系中的生长和营养吸收。处理包括9个采样日期，即移植后2、32、46、60、77、91、109、122和137天(DAT)。在最后一次取样中，植株植株枝条中干重和鲜重的累积估计分别达到550和9528 g/株。循环结束时，干物质分布在果实中占73%，叶中占16%，茎中占11%。总鲜果产量估计为154.7吨/公顷。植物芽部养分积累的递减顺序为K>N>Ca>P>S>Mg，估计值为22.6;10.4;5.0;2.3;分别为2.1和1.6 g/株，对应431;198;95;44;K、N、Ca、P、S和Mg分别施用40和30 kg/公顷。果实中养分积累的递减顺序为K b> N b> P b> S b> Mg>Ca，估计值为16.6;8.4;1.7;0.8;分别为0.7和0.2 g/株，相当于估计总提取量315;153;32;16;K、N、P、S、Mg和Ca分别为14和3 kg/ hm2。在最后一次取样中，氮、磷、钾在果实中积累最多，钙、硫、镁在营养器官(茎+叶)中积累最多。

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来源期刊

Horticultura Brasileira 农林科学-园艺

CiteScore

1.40

自引率

28.60%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal Horticultura Brasileira, a quarterly journal, is the Official Publication of the Sociedade de Olericultura do Brasil. Its abbreviated title is Hortic. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.