Leaf area index of sweet corn (Zea mays ssp. saccharata L.) crops depending on cultivation technology in the drip-irrigated conditions of the south of Ukraine

IF 0.4 Q4 PLANT SCIENCES
P. Lykhovyd, V. Ushkarenko, S. Lavrenko, N. Lavrenko, Oleks, R. H. Zhuikov, I. Mrynskyi, N. Didenko
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引用次数: 6

Abstract

The paper presents the results of the study dedicated to the investigation of sweet corn leaf apparatus growth and development in dependence to the crop cultivation technology elements, viz. depth of plowing, mineral fertilizers application doses, plants density, in the drip-irrigated conditions of the South of Ukraine. The field trials were carried out during three years (2014-2016) by using the split-plot design method in four replications with accordance to the modern requirements of the experimental work in agronomy. The results of the study showed the significant effect of all the studied agro technological treatments on the crop leaf apparatus. The highest Leaf Area Index (LAI) that averaged to 3.72 was obtained under moldboard plowing at the depth of 20-22 cm, fertilization with N120P120, and plants density of 80000 ha-1. The total amplitude of fluctuation of LAI averaged to 2.42. Increased plowing depth improved LAI of sweet corn only under the non-fertilized conditions, however, increased fertilizers doses and thickening of the crops positively affected the studied bio-metric index.
甜玉米叶面积指数。在乌克兰南部的滴灌条件下,依靠栽培技术种植的saccharata L.)作物
本文介绍了在乌克兰南部滴灌条件下,甜玉米叶片器官生长发育与作物栽培技术要素(即耕作深度、矿物肥施用剂量、植物密度)的依赖研究结果。按照现代农学试验工作要求,采用4个重复的分块设计方法,分3年(2014-2016年)进行田间试验。研究结果表明,所研究的所有农业技术处理对作物叶片器官的影响均显著。耕深20 ~ 22 cm、施肥N120P120、株密度80000 ha-1时,叶面积指数最高,平均为3.72。LAI的总波动幅度平均为2.42。增加翻耕深度仅在不施肥条件下提高了甜玉米的LAI,而增加肥料用量和作物增厚对所研究的生物计量指数有积极影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Modern Phytomorphology
Modern Phytomorphology PLANT SCIENCES-
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33.30%
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