Comparative test of slow-release zinc-containing fertilizers on maize (Zea mays) in phytotron

2021 ◽  
Vol 22 (4) ◽  
Keyword(s):  
Zea Mays ◽  
Slow Release ◽  
Comparative Test

scholarly journals Using of low grade zeolite based fly ash as slow release agent for Zea mays growth

2020 ◽  
Vol 1567 ◽  
pp. 022036
Author(s):  
Jumaeri ◽  
W Sumarni ◽  
L W Ningrum ◽  
E F Rahayu
Keyword(s):  
Zea Mays ◽  
Fly Ash ◽  
Slow Release ◽  
Low Grade ◽  
Release Agent

SLOW RELEASE N FERTILIZERS APPLIED IN FALL FOR CORN

1977 ◽  
Vol 57 (4) ◽  
pp. 487-496 ◽  
Author(s):  
E. G. BEAUCHAMP
Keyword(s):  
Zea Mays ◽  
Field Experiments ◽  
Zea Mays L ◽  
Slow Release ◽  
Soil Layers ◽  
N Fertilizers ◽  
Residual N ◽  
Coated Urea ◽  
Sampling Times ◽  
Fall Application

Slow release N fertilizers were considered as efficient sources of N for fall application to corn (Zea mays L.). Accordingly, sulfur-coated urea (SCU) and crotonylidene di-urea (CDU) were compared with urea in several field experiments. Neither SCU nor CDU were shown to be advantageous over urea in terms of grain yield. Similarly, the N content of the leaf opposite and below the ear did not show a greater availability of N from SCU and CDU than from urea applied in the fall. Response to residual N from previous applications of urea, SCU, and CDU was obtained for 2 yr after application. There was a tendency for a greater response to residual SCU. The concentration of NO−3 in the 0- to 18- and 18- to 36-cm soil layers was usually less with slow release N fertilizers than urea at early May sampling times. By mid-June, the NO−3 concentration had increased substantially with both urea and the slow release N fertilizers. In 2 yr when urea was also applied in the spring, the NO−3 concentration with spring-applied urea was higher than with fall-applied urea. This reflects the greater loss of N during the winter months with fall-applied urea. After growth terminated in the fall, NO−3 apparently continued to be released from urea and slow release N fertilizers at similar rates. Thus slow release N fertilizers also have potential to contribute significantly to the NO−3 concentration in drainage and groundwaters. In general, there was no noteworthy difference between SCU and CDU in this study. Also, slow release N fertilizers did not show any agronomic advantage over urea when applied in the fall.

Slow release chelate enhancement of lead phytoextraction by corn (Zea mays L.) from contaminated soil—a preliminary study

2005 ◽  
Vol 339 (1-3) ◽  
pp. 179-187 ◽  
Author(s):  
Haifeng Li ◽  
Qingren Wang ◽  
Yanshan Cui ◽  
Yiting Dong ◽  
Peter Christie
Keyword(s):  
Zea Mays ◽  
Contaminated Soil ◽  
Zea Mays L ◽  
Slow Release ◽  
Preliminary Study

scholarly journals Response of corn plants (Zea mays L.) to application of zeolite coated urea as nitrogen slow release fertilizer

2020 ◽  
Vol 484 ◽  
pp. 012091
Author(s):  
Nur Aina ◽  
St. Fatmah Hiola ◽  
Yusminah Hala ◽  
Yasser Abd. Djawad ◽  
Neni Iriany ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Slow Release ◽  
Slow Release Fertilizer ◽  
Coated Urea ◽  
Corn Plants

scholarly journals The Effect of Dolomite and NPK Slow Release Fertilizer on Physiological and Growth of Sweet Corn (Zea mays saccharata Sturt) on Peatlands

2020 ◽  
Vol 2 (1) ◽  
pp. 46-62
Author(s):  
Ika Septina BR Sembiring Septina BR Sembiring ◽  
Wawan Wawan ◽  
Adiwirman Adiwirman
Keyword(s):  
Zea Mays ◽  
Sweet Corn ◽  
Slow Release ◽  
Slow Release Fertilizer

Pemanfaatan gambut sebagai lahan pertanian dihadapkan dengan masalah kesuburan tanah rendah. Rendahnya kesuburan gambut dicirikan dengan pH masam, kejenuhan basa rendah, kapasitas tukar kation tinggi. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian dolomit dan jenis NPK slow release serta interaksi antara dolomit dengan NPK slow release terhadap fisiologi dan pertumbuhan jagung manis pada tanah gambut. Penelitian ini dilaksanakan pada bulan Agustus sampai Oktober 2018 di Unit Pelaksana Teknis Kebun Percobaan dan Laboratorium Tanah Fakultas Pertanian Universitas Riau. Penelitian ini dilaksanakan secara eksperimen dengan menggunakan Rancangan Acak Lengkap (RAL) factorial. Faktor pertama adalah dolomit yang terdiri dari 4 taraf (0 ton.ha-1, 2.5     ton.ha-1, 5 ton.ha-1, dan 7.5 ton.ha-1). Faktor kedua adalah NPK slow release yang terdiri dari 4 taraf (NPK mutiara tunggal, NPK 13:6:27:4+0,65B Mahkota B, NPK 13:6:27:4+0,65B Compound Hi-Kay Plus dan NPK 13:8:27:4 MgO Ztick). Hasil penelitian menunjukkan bahwa pemberian dolomit dan NPK slow release dapat meningkatkan fisiologi seperti kandungan klorofil dan pertumbuhan tanaman jagung manis yaitu tinggi tanaman, jumlah daun, volume akar, berat kering tanaman dan laju pertumbuhan tanaman. Interaksi antara dolomit  23.55 g per tabung dengan pupuk 30.25 N, 3.72 P, 12.56 g per tabung (NPK Ztick) slow release merupakan interaksi terbaik yang mampu meningkatan laju pertumbuhan tanaman 6.65 g/hari.

CRESCIMENTO E ACÚMULO DE FITOMASSA EM FUNÇÃO DO MANEJO DE NITROGÊNIO NA CULTURA DO MILHO

2017 ◽  
Vol 15 (3) ◽  
pp. 410
Author(s):  
AUGUSTO DE QUEIROZ PEDRAZZI ◽  
FLAVIO FERREIRA DA SILVA BINOTTI ◽  
EDILSON COSTA ◽  
ELIANA DUARTE CARDOSO
Keyword(s):  
Zea Mays ◽  
Linear Growth ◽  
Slow Release ◽  
Corn Silage ◽  
Growth And Yield ◽  
Recommended Dose ◽  
Beneficial Effects ◽  
Nitrogen Levels ◽  
Silage Production ◽  
Mineral Additives

RESUMO – O nitrogênio é um elemento que propicia efeitos benéficos no crescimento e na produtividade do milho.Diante disso, o objetivo deste trabalho foi estudar o crescimento de plantas e o potencial de produção de fitomassaseca do milho, para fins de silagem, em função de fontes e doses de nitrogênio. O experimento foi realizado na áreaexperimental da UEMS de Cassilândia, MS. Utilizou-se o delineamento de blocos casualizados em esquema fatorial2x5, constituído pela combinação de fontes de nitrogênio (ureia e ureia revestida com aditivos minerais + polímero)e doses de nitrogênio no sulco de semeadura (100%, 75%, 50%, 25% e zero da dose recomendada), com quatrorepetições. Foram realizadas avaliações de altura das plantas, altura de inserção da espiga, diâmetro do colmo, índicede colheita, fitomassa fresca e seca total, fitomassa fresca e seca de espigas e fitomassa fresca e seca de colmo maisfolhas. O manejo do nitrogênio (doses de N em relação à dose recomendada) teve efeito positivo linear no crescimentodo milho para fins de silagem. As fontes e doses de nitrogênio tiveram efeitos distintos sobre potencial de produção defitomassa seca na cultura, sendo mais recomendado o uso da uréia sem revestimento na dose 160 kg ha-1 de N.Palavras-chave: Zea mays; Ureia; Kimcoat; liberação lenta; polímero.PHYTOMASS IN SILAGE PRODUCTION AS A FUNCTION OF NITROGEN MANAGEMENT IN MAIZEABSTRACT – Nitrogen is an element that provides beneficial effects on growth and yield of corn. The objective ofthis study was to evaluate plant growth and the potential of dry phytomass production of corn for silage purposes,according to sources and levels of nitrogen. The experiment was conducted in the experimental area of the UEMSCassilândia - MS. A randomized blocks design was used, in a factorial scheme 2x5, comprising the combination ofnitrogen sources (urea and urea coated with mineral additives + polymer) and nitrogen at sowing (100%, 75%, 50%,25 and zero% of the recommended dose), with four replications. Evaluations were performed of plant height, averageheight of ear, stem diameter, harvest index, fresh and dry total phytomass, fresh and dry ear phytomass and fresh anddry phytomass of stem plus sheet. The management of nitrogen (N doses over the recommended dose) had a positiveeffect on linear growth and corn for silage purposes. Sources and nitrogen levels had different effects on productivepotential of dry phytomass in corn silage purposes, and the most suitable was the use of uncoated urea at 160 kg ha-1 N.Keywords: Zea mays, urea, Kimcoat, slow release, polymer.

Ultrastructure of Plant Leaf Tissue Infected with Mite-Borne Viral-Like Pathogens

1970 ◽  
Vol 28 ◽  
pp. 178-179 ◽  
Author(s):  
O. E. Bradfute ◽  
R. E. Whitmoyer ◽  
L. R. Nault
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Electron Microscope ◽  
Hordeum Vulgare ◽  
Microscope Study ◽  
Electron Microscope Study ◽  
Leaf Tissue ◽  
Leaf Ultrastructure ◽  
Double Membrane ◽  
Aceria Tulipae

A pathogen transmitted by the eriophyid mite, Aceria tulipae, infects a number of Gramineae producing symptoms similar to wheat spot mosaic virus (1). An electron microscope study of leaf ultrastructure from systemically infected Zea mays, Hordeum vulgare, and Triticum aestivum showed the presence of ovoid, double membrane bodies (0.1 - 0.2 microns) in the cytoplasm of parenchyma, phloem and epidermis cells (Fig. 1 ).

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