Lettuce crop fertilized with organomineral source of phosphorus and micronutrients

IF 0.7 4区农林科学 Q4 HORTICULTURE

Horticultura Brasileira Pub Date : 2022-12-01 DOI:10.1590/s0102-0536-20220407

J. Torres, Guilherme G da Silva, H. C. D. O. Charlo, A. Loss, E. Lemes, D. M. S. Vieira

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引用次数: 1

Abstract

ABSTRACT The use of organomineral fertilizers (OF) in the cultivation of vegetables has been considered a promising technology to provide nutrients gradually. The OFs can reduce the phosphorous (P) soil adsorption and leaching of nitrogen and potassium with the supply of some micronutrients. This study aimed to evaluate doses of OF as a source of P and micronutrients (boron and zinc) for curly lettuce cultivation. Five OF doses were evaluated: T1 = 0% (no P2O5 fertilization); T2 = 50% (75 mg/dm3 of P2O5); T3 = 100% (150 mg/dm3 of P2O5); T4 = 150% (225 mg/dm3 of P2O5); T5 = 200% (300 mg/dm3 of P2O5) of the lettuce recommended fertilization; T6 = 100% mineral fertilizer (MF) (150 mg/dm3 of P2O5). The fresh (FM) and dry mass (DM) of the lettuce shoot (aerial part), the soil nutrient level, and the plant nutritional status at harvest were evaluated. We observed that (i) the doses of 225 and 300 mg/dm3 of P2O5 via OF provided the same availability of P in the soil as the dose of 150 mg/dm3 of P2O5 of MF; (ii) the doses of 225 and 300 mg/dm3 of P2O5 of OF provided higher levels of soil boron and zinc compared to other treatments and (iii) the MF fertilization was more efficient than that of OF in the production of curly lettuce in a protected environment.

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生菜作物施用有机肥磷源和微量元素

摘要有机矿物肥料（of）在蔬菜种植中的应用被认为是一种有前途的逐渐提供营养的技术。OFs可以通过提供一些微量营养素来减少磷（P）土壤对氮和钾的吸附和浸出。本研究旨在评估of作为卷曲生菜种植中磷和微量营养素（硼和锌）来源的剂量。评估了五种OF剂量：T1=0%（无P2O5受精）；T2=50%（75 mg/dm3的P2O5）；T3=100%（150 mg/dm3的P2O5）；T4=150%（225 mg/dm3的P2O5）；T5=生菜推荐施肥量的200%（300mg/dm3的P2O5）；T6=100%矿物肥料（MF）（150 mg/dm3的P2O5）。对生菜地上部分的鲜重（FM）和干重（DM）、土壤营养水平和收获时的植物营养状况进行了评估。我们观察到（i）225和300mg/dm3的P2O5剂量通过of在土壤中提供的磷的有效性与150mg/dm3 P2O5的MF剂量相同；（ii）与其他处理相比，225和300mg/dm3剂量的P2O5 of提供了更高水平的土壤硼和锌，以及（iii）在受保护的环境中生产卷莴苣时，MF施肥比of更有效。

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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.