Effectiveness of conservation agriculture (tillage vs. vegetal soil cover) to reduce water erosion in maize cultivation (Zea mays L.): An experimental study in the sub-humid uplands of Guatemala

Geoderma ◽  
2021 ◽  
Vol 404 ◽  
pp. 115336
Author(s):  
Rafael Blanco-Sepúlveda ◽  
Francisco Enríquez-Narváez ◽  
Francisco Lima
Keyword(s):  
Experimental Study ◽  
Zea Mays ◽  
Soil Cover ◽  
Zea Mays L ◽  
Conservation Agriculture ◽  
Water Erosion ◽  
Maize Cultivation

scholarly journals Effects of NP Fertilizer Placement Depth by Year Interaction on the Number of Maize (Zea mays L.) Plants after Emergence Using the Additive Main Effects and Multiplicative Interaction Model

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1543
Author(s):  
Piotr Szulc ◽  
Jan Bocianowski ◽  
Kamila Nowosad ◽  
Henryk Bujak ◽  
Waldemar Zielewicz ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Interaction Model ◽  
Fertilizer Application ◽  
Fertilizer Placement ◽  
Multiplicative Interaction ◽  
Maize Cultivation ◽  
Main Effects ◽  
Placement Depth ◽  
Np Fertilizer

Field experiments were carried out at the Department of Agronomy of the Poznań University of Life Sciences to determine the effect of the depth of NP fertilization placement in maize cultivation on the number of plants after emergence. The adopted assumptions were verified based on a six-year field experiment involving four depths of NP fertilizer application (A1—0 cm (broadcast), A2—5 cm (in rows), A3—10 cm (in rows), A4—15 cm (in rows)). The objective of this study was to assess NP fertilizer placement depth, in conjunction with the year, on the number of maize (Zea mays L.) plants after emergence using the additive main effects and multiplicative interaction model. The number of plants after emergence decreased with the depth of NP fertilization in the soil profile, confirming the high dependence of maize on phosphorus and nitrogen availability, as well as greater subsoil loosening during placement. The number of plants after emergence for the experimental NP fertilizer placement depths varied from 7.237 to 8.201 plant m−2 during six years, with an average of 7.687 plant m−2. The 61.51% of variation in the total number of plants after emergence was explained by years differences, 23.21% by differences between NP fertilizer placement depths and 4.68% by NP fertilizer placement depths by years interaction. NP fertilizer placement depth 10 cm (A3) was the most stable (ASV = 1.361) in terms of the number of plants after emergence among the studied NP fertilizer placement depths. Assuming that the maize kernels are placed in the soil at a depth of approx. 5 cm, the fertilizer during starter fertilization should be placed 5 cm to the side and below the kernel. Deeper NP fertilizer application in maize cultivation is not recommended. The condition for the use of agriculture progress, represented by localized fertilization, is the simultaneous recognition of the aspects of yielding physiology of new maize varieties and the assessment of their reaction to deeper seed placement during sowing.

scholarly journals KEMAMPUAN Azetobacter sp. DALAM MENINGKATKAN EFISIENSI PEMUPUKAN UREA PADA TANAMAN JAGUNG (Zea mays L.)

BUANA SAINS ◽  
2018 ◽  
Vol 18 (1) ◽  
pp. 1 ◽  
Author(s):  
Nur Winda Rachmadhani ◽  
Didik Hariyono ◽  
Mudji Santoso
Keyword(s):  
Zea Mays ◽  
Soil Fertility ◽  
Microbial Activity ◽  
Zea Mays L ◽  
Maize Yield ◽  
Symbiotic Bacteria ◽  
Chemical Fertilizers ◽  
Plant Utilization ◽  
Maize Cultivation ◽  
Urea Fertilization

Azotobacter sp. is a non-symbiotic bacteria that has the ability to mobilize nitrogen from a form that is not available in a form that is available for plants. Inoculation of Azotobacter sp. into the planting medium can be used as a supplier of nitrogen required by the plant. Utilization of Azotobacter sp. as biofertilizer has the ability to minimize the use of chemical fertilizers, improve the soil fertility and increase the microbial activity in the rhizosphere of plants. Inoculation of Azotobacter sp. into the planting medium is one alternative to improve the efficiency of urea fertilizer in the maize cultivation. The result of this research showed that the application of Azotobacter sp. with the dose of 10 ml l-1 and 20 ml l-1 on the urea fertilization with the dose of 150 kg ha-1 were able to increase the growth of maize, so that maize has growth that was not significantly different with the maize that got urea with the dose of 225 kg ha-1 and 300 kg ha-1. Inoculation of Azotobacter sp. in the planting media, either with the dose of 10 ml l-1or 20 ml l-1were able to increase the maize yield when compared to the treatment without Azotobacter sp. Inoculation of Azotobacter sp. into the planting medium was able to increase the maize yield. However, increasing the dose of Azotobacter sp. more than 10 ml l-1 did not affect to increase the maize yield. Maize yield reached the optimum value when the dose of urea supplied was153.50 kg ha-1.

Weed emergence as affected by maize ( Zea mays L.)-cover crop rotations in contrasting arable soils of Zimbabwe under conservation agriculture

2016 ◽  
Vol 81 ◽  
pp. 47-56 ◽  
Author(s):  
Blessing Mhlanga ◽  
Stephanie Cheesman ◽  
Bhagirath Singh Chauhan ◽  
Christian Thierfelder
Keyword(s):  
Zea Mays ◽  
Cover Crop ◽  
Zea Mays L ◽  
Conservation Agriculture ◽  
Crop Rotations ◽  
Arable Soils ◽  
Weed Emergence

Yield response of maize (Zea mays L.) to conservation agriculture cropping system in Southern Africa

2015 ◽  
Vol 146 ◽  
pp. 230-242 ◽  
Author(s):  
Christian Thierfelder ◽  
Rumbidzai Matemba-Mutasa ◽  
Leonard Rusinamhodzi
Keyword(s):  
Zea Mays ◽  
Southern Africa ◽  
Zea Mays L ◽  
Cropping System ◽  
Conservation Agriculture ◽  
Yield Response

scholarly journals Respons tanaman jagung (Zea mays L.) hibrida terhadap aplikasi paraquat pada lahan tanpa olah tanah (TOT)

Kultivasi ◽  
2018 ◽  
Vol 17 (3) ◽  
Author(s):  
Agus Wahyudin ◽  
Dedi Widayat ◽  
Fiky Yulianto Wicaksono ◽  
Aep Wawan Irwan ◽  
Abdulah Hafiz
Keyword(s):  
Zea Mays ◽  
Sea Level ◽  
Zea Mays L ◽  
Block Design ◽  
Growth And Yield ◽  
Zero Tillage ◽  
West Java ◽  
Land Preparation ◽  
Randomized Block Design ◽  
Maize Cultivation

Sari. Penelitian ini bertujuan untuk mempelajari pertumbuhan dan hasil tanaman jagung akibat persiapan lahan dengan menggunakan herbisida paraquat pada lahan tanpa olah tanah (TOT), serta memperoleh dosis yang tepat yang dapat digunakan dalam budidaya jagung untuk menggantikan olah tanah sempurna (OTS). Percobaan dilaksanakan di Kebun Percobaan Ciparanje Fakultas Pertanian Universitas Padjajaran, Jatinangor, Kabupaten Sumedang, Jawa Barat dengan ketinggian tempat ± 750 meter diatas permukaan laut  dan ordo tanah Inceptisol serta tipe curah hujan C3 menurut Oldeman (1975). Percobaan dilaksanakan dari bulan Mei 2017 hingga Agustus 2017.  Metode percobaan yang digunakan adalah Rancangan Acak Kelompok terdiri dari 6 perlakuan dan diulang sebanyak 4 kali. Perlakuannya adalah sebagai berikut : Perlakuan TOT + Herbisida Paraquat Diklorida Dosis 207g/L, TOT + Herbisida Paraquat Diklorida  Dosis 276g/L, TOT + Herbisida Paraquat Diklorida Dosis  345g/L, TOT + Herbisida Paraquat Diklorida Dosis  414g/L, TOT + Penyiangan Manual, dan  Kontrol (OTS). Hasil percobaan menunjukkan bahwa pemberian herbisida paraquat 414 g/L untuk persiapan lahan dengan TOT pada tanaman jagung  dapat menyamai OTS.Kata kunci : Paraquat , Persiapan lahan, Jagung, Tanpa olah tanah  Abstract. This study aims to determine growth and yield of maize caused by land preparation using paraquat herbicide at zero tillage, then find the best dosage of paraquat that can be replaced full tillage in maize cultivation. The experiment was conducted at the experimental field Ciparanje, Faculty of Agriculture, University of Padjadjaran, Jatinangor, Sumedang Regency, West Java at ± 750 meters above sea level, soil order was Inceptisols, the type of rainfall was C3 according Oldemann classification. The experiment conducted from May 2017 until August 2017. It used  randomized block design that consisted of 6 treatments and repeated four times. The treatments were: zero tillage + Paraquat Dicloride at the dosage 207g/L, zero tillage + Paraquat Dicloride at the dosage 276g/L, zero tillage + Paraquat Dicloride at the dosage 345g/L, zero tillage + Paraquat Dicloride at the dosage 414g/L, zero tillage +  weeding manual, and full tillage as control. The results of the experiments showed that application of paraquat 414 g/L can replace full tillage.Keyword : Land preparation, Paraquat, Maize, Zero tillage

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