نتایج جستجو برای: plant density and zea mays l

تعداد نتایج: 17040409  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده کشاورزی 1388

: استفاده بهینه از کودهای نیتروژنی به منظور افزایش عملکرد، جذب نیتروژن و همچنین حفظ محیط زیست، امری اجتناب ناپذیر است. کاهش هدررفت نیتروژن با استفاده از کودهای کندرها یکی از راهکارهای مناسب برای نیل به اهداف مذکور می باشد. به منظور مقایسه کارآیی کودهای نیتروژنی کندرهای اوره با پوشش گوگردی sulfur coated urea (scu) و اوره زئولیتی (uz) با اوره در رشد ذرت (zea mays l.)، طرح تحقیقاتی در سال 88- 1387...

Journal: :Agriculture 2021

Increasing plant density is a key measure to close the maize (Zea mays L.) yield gap and ensure food security. However, there large difference in fields sown by agronomists smallholders. The primary cause of this phenomenon lack an effective methodology systematically analyze loss. To identify loss processes from experimental plots smallholder fields, research was developed study involving farm...

Journal: :Jurnal Online Pertanian Tropik 2021

The purpose of this research is to find out determine the test several varieties and application vegetable pesticides for clove leaves Eradicating Leaf worms on Corn Plants (Zea mays L). From results statistical data analysis, treatment showed no significant effect parameters plant height 3, 5, 9 weeks after planting, diameter 3 5 ear weight per sample, plot, but had parameters. Plant at 7 stem...

Journal: Pollution 2017
K. L Njoku

The performance of every plant in an environment is an indicator of how the plant can withstand the various environmental conditions. This study investigated the toxicity of crude oil on the growth performance, chlorophyll contents, enzymatic activities and oxidative stress biomarkers of eight accessions of Zea mays. The growth enzyme (amylase and invertase) activities, as well as oxidative s...

2009
D. A. Prischmann K. E. Dashiell B. E. Hibbard

Corn rootworms (Chrysomelidae: Diabrotica spp.) are widespread maize (Zea mays L.) pests that can cause economic damage by consuming plant tissues, thus negatively affecting plant physiology and function (Riedell 1990; Riedell and Reese 1999), and grain yield (Sutter et al. 1990; Spike and Tollefson 1991). The majority of plant damage is caused by the subterranean larval stages, which can also ...

Journal: :Plant physiology 1984
C E Hansen H Wenzler F Meins

A sensitive, specific enzyme immunoassay (EIA) for trans-zeatin riboside (ZR) and trans-zeatin (Z) in the 0.3 to 30 picomole range has been described. The reliability of the method for measuring ZR + Z in partially purified extracts of Zea mays L. tissues was verified by highperformance liquid chromatography. EIA measurements showed that there was a concentration gradient of ZR + Z along the le...

Journal: :Agriculture 2023

Phytostimulators are attracting considerable attention for replacing mineral fertilizers, which of environmental concern, being especially forbidden in organic farming. The benefit applying such products based on microorganisms (e.g., algae extract) or minerals nano-meter-sized particle nanofertilizers) is that plants can uptake them faster than soil targeting plant growth by regulating their p...

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