scholarly journals Growth and Yield Responses of Four Soybean (Glycine max (l.) Merrill.) Cultivars to Different Methods of NPK Fertilizer Application

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Paul Benyamin Timotiwu ◽  
Yayuk Nurmiaty ◽  
Eko Pramono ◽  
Siti Maysaroh
Keyword(s):  
Glycine Max ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Glycine Max L ◽  
Npk Fertilizer ◽  
Yield Responses

scholarly journals Pengaruh Jarak Tanam dan Aplikasi Pupuk NPK terhadap Pertumbuhan dan Hasil Tanaman Kedelai (Glycine max L. Merril) Varietas Kaba

Agrikultura ◽  
2015 ◽  
Vol 26 (2) ◽  
Author(s):  
Deden Deden
Keyword(s):  
Glycine Max ◽  
Experimental Method ◽  
Block Design ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Soybean Plant ◽  
Plant Spacing ◽  
Area Index ◽  
Glycine Max L ◽  
Npk Fertilizer

ABSTRACTEffect of Plant Spacing and NPK Fertilizer Application on Plant Growth and Yield of Soybean(Glycine max L. Merril) of Kaba VarietyThis study aim was to determine the effect of plant spacing and NPK fertilizer application on thegrowth and yield of soybean of Kaba variety. The experiment was conducted in the field of theUPTD Balai Pengembangan Benih Palawija (BPBP), Plumbon Sub district, Cirebon District, WestJava from April to July 2014. The experimental method used was an experimental method withRandomized Block Design (RAK) with factorial arrangement of two treatment factors that wasrepeated three times. The first factor was the plant spacing consisted of three levels of 40x10, 40x15and 40x20 cm of plant spacing, while the second factor was the dose of NPK fertilizer whichconsisted of four levels of 200, 250, 300 and 350 kg/ha. Result showed that there was interactionbetween plant spacing and dose of NPK fertilizer to the average of leaf area index of soybean Kabavariety at the age of 21 days after planting. The treatment of Phonska NPK fertilizer in the dose of350 kg/ha gave the best soybean production of 1.44 kg/plot or the equivalent of 1.91 tons/ha(assuming of effective land conversion of 80%/ha), while the plant spacing did not show anysignificant effects the soybean production.Keywords: soybean, plant spacing, NPK fertilizerABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh jarak tanam dan aplikasi pupuk NPK terhadappertumbuhan dan hasil tanaman kedelai (Glycine max) varietas Kaba. Penelitian dilaksanakan dilahan di UPTD Balai Pengembangan Benih Palawija (BPBP), Plumbon, Cirebon, Jawa Barat daribulan April sampai dengan Juli 2014. Metode percobaan yang digunakan yaitu metode eksperimendengan Rancangan Acak Kelompok (RAK) pola faktorial dengan perlakuan terdiri dari dua faktoryang diulang tiga kali. Faktor yang pertama adalah jarak tanam yang terdiri dari tiga taraf yaitu40x10, 40x15 dan 40x20 cm, sedangkan faktor yang kedua adalah dosis pupuk NPK yang terdiri dariempat taraf yaitu 200, 250, 300 dan 350 kg/ha. Hasil penelitian menunjukkan adanya interaksiantara jarak tanam dan dosis pupuk NPK terhadap rata-rata indeks luas daun tanaman kedelaivarietas Kaba pada umur 21 hari setelah tanam. Dosis pupuk NPK Phonska 350 kg/hamenghasilkan produksi terbaik sebanyak 1,44 kg/petak atau setara dengan 1,91 ton/ha (asumsikonfersi lahan efektif 80%/ha), sedangkan jarak tanam pada perlakuan tidak menunjukkan adanyapengaruh nyata terhadap produksi kedelai.Kata kunci: kedelai, jarak tanam, pupuk NPK

scholarly journals Interactive Effects of Elevated Ozone and Temperature on Growth and Yield of Soybean (Glycine max (L.) Merr.) under Field Conditions

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1803
Author(s):  
Kent Burkey ◽  
Ripley Tisdale ◽  
Richard Zobel ◽  
Samuel Ray ◽  
Walter Pursley
Keyword(s):  
Glycine Max ◽  
Seed Yield ◽  
Interactive Effects ◽  
Growth And Yield ◽  
Ozone Treatment ◽  
Exposure System ◽  
Elevated Ozone ◽  
Glycine Max L ◽  
The Individual ◽  
Yield Responses

Elevated ozone and rising temperature are both factors in climate change, but they are difficult to study in combination due to exposure system requirements. We developed and deployed an air exclusion exposure system to treat soybean (Glycine max (L.) Merr.) cultivar “Jake” with season-long combinations of sub-ambient ozone (18 ppb, 12 h mean), elevated ozone (66 ppb, 12 h mean), and elevated temperature (+3.5 °C daytime, +2.4 °C nighttime) in irrigated field plots. Warming caused a shift in biomass partitioning from reproductive tissues into stems and petioles at mid-season that resulted in a significant 25% reduction in final seed yield and a significant reduction in harvest index. The elevated ozone treatment delayed mid-season biomass production, and final seed yield was reduced by a non-significant 2%. However, there were significant underlying effects of elevated ozone on seed production. The non-significant impact of ozone on seed yield of cultivar “Jake” resulted from significant increases in pod number (+16%) and seed number (+18%) that were offset by a significant reduction in seed size (−16%). No evidence of significant warming–ozone interactions was found in biomass or seed yield responses. In general, significant impacts of the individual warming or ozone treatments were found to be additive.

Effect of Intercropping and Fertilizer Type on Growth and Yield of Soybean (Glycine max L. Merrill)

2005 ◽  
Vol 5 (1) ◽  
pp. 69-73 ◽  
Author(s):  
P. Wandahwa ◽  
I.M. Tabu . ◽  
M.K. Kendagor . ◽  
J.A. Rota .
Keyword(s):  
Glycine Max ◽  
Growth And Yield ◽  
Glycine Max L

EFFECTS OF INOCULATION AND FERTILIZER N LEVELS ON N2 FIXATION AND YIELDS OF SOYBEANS IN ONTARIO

1979 ◽  
Vol 59 (4) ◽  
pp. 1129-1137 ◽  
Author(s):  
ERNEST SEMU ◽  
D. J. HUME
Keyword(s):  
Glycine Max ◽  
Rhizobium Japonicum ◽  
Soil N ◽  
Fertilizer N ◽  
Fertilizer Nitrogen ◽  
Nodule Number ◽  
Glycine Max L ◽  
Yield Responses ◽  
Seed Yields ◽  
Nodule Efficiency

Soybeans (Glycine max (L.) Merrill) often do not give yield responses to added fertilizer nitrogen (N) because high soil N levels inhibit fixation of atmospheric N2. Yield responses to N fertilizer applied at planting usually indicate that N2 fixation is less than optimal. The effects of inoculation with Rhizobium japonicum, and fertilizer N levels, on soybean N2(C2H2) fixation and seed yields in Ontario were investigated in ’ 1976 and 1977. Three locations were used each year, representing areas where soybeans had been grown for many years (Ridgetown), for only a few years (Elora), or not at all (Woodstock). Treatments were (a) Uninoculated + 0 N, (b–e) Inoculated + 0, 50, 100 or 200 kg N/ha. Results indicated that inoculation increased seed yields only when soybeans were introduced into new areas. Fertilizer N applications at planting time did not increase yields in areas where soybeans had been grown several times previously, indicating that N2 fixation could support maximum yields. Nodule number and mass, and N2(C2H2) fixation rates were all decreased by fertilizer N. An increase in nodule efficiency, later in the season, in high N treatments was most marked at Ridgetown.

scholarly journals Effect of year and fertilizer on water-use efficiency of pearl millet (Pennisetum glaucum) in Niger

1999 ◽  
Vol 132 (2) ◽  
pp. 139-148 ◽  
Author(s):  
M. V. K. SIVAKUMAR ◽  
S. A. SALAAM
Keyword(s):  
Water Use Efficiency ◽  
Pearl Millet ◽  
Water Use ◽  
Pennisetum Glaucum ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Soluble Phosphate ◽  
Average Rainfall ◽  
Use Efficiency ◽  
Yield Responses

A comprehensive study was conducted over a 4-year period (1984–87) to evaluate the water use, growth and yield responses of pearl millet (Pennisetum glaucum (L.) R. Br.) cv. CIVT grown with and without fertilizer (30 kg P2O5 and 45 kg N ha−1) at the ICRISAT Sahelian Centre, Sadoré, Niger. Our study showed significant year and fertilizer effects on the growth and yield of millet at the study site. Observed year effects were primarily due to the variations in the amount and distribution of rainfall in relation to the potential demand for water. During 1984, 1985 and 1987, total rainfall was below the long term average, while in 1986 it was above average. While the onset of rains (relative to the average date of onset) was early from 1984 to 1986, in 1987 the sowings were delayed by as much as 33 days. Of all the four years, the separation between the treatments in the cumulative evaporation is most evident for 1984, which was a drought year with below-average rainfall in all the months from June to September. Cumulative evaporation patterns in 1985 and 1986 were similar because of regular rains and high average rainfall per rainy day from June to October. In 1987, sowings were delayed until 15 July and only 6·9 mm of rainfall was received per rainy day in July. Hence cumulative evaporation was initially low and showed a significant increase only after two significant rain events in early August. There was a large response to fertilizer in all the years as small additions of fertilizer phosphate increased the soluble phosphate in the soil. Fertilizer application resulted in a small increase in water use (7–14%) in all years except 1987. Increased yield due to the application of fertilizer was accompanied by an increase in the water-use efficiency (WUE) in all the four years with the largest increase in 1985. The beneficial effect of fertilizers could be attributed to the rapid early growth of leaves which can contribute to reduction of soil evaporative losses and increased WUE. Over the four seasons, average increase in the WUE due to the addition of fertilizer was 84%.

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