Effect of P-K-fertilizer with a low Cl content on the yield and quality of aromatic and sun-cured tobacco

1991 ◽  
Vol 29 (3) ◽  
pp. 289-294
Author(s):  
He Nianzu ◽  
Sun Jiwei
Keyword(s):  
Yield And Quality ◽  
K Fertilizer

scholarly journals The effect of non-targeted application of propiconazole on the yield and quality of malt barley

2012 ◽  
Vol 92 (2) ◽  
pp. 341-349 ◽  
Author(s):  
R. E. Karamanos ◽  
N. A. Flore ◽  
J. T. Harapiak ◽  
F. C. Stevenson
Keyword(s):  
N Fertilizer ◽  
Yield Potential ◽  
Fertilizer Treatment ◽  
Fertilizer Rate ◽  
Net Returns ◽  
Yield And Quality ◽  
K Fertilizer ◽  
Malt Barley ◽  
Fertilizer Rates

Karamanos, R. E., Flore, N. A., Harapiak, J. T. and Stevenson, F. C. 2012. The effect of non-targeted application of propiconazole on the yield and quality of malt barley. Can. J. Plant Sci. 92: 341–349. There is a desire to use non-targeted applications of foliar fungicide to improve malting barley production under higher fertility situations. An experiment was conducted at 80 sites (location by year combinations) with a 12 combinations of N/P/K rate-placement to determine if applications of propiconazole improve malt barley yield and quality under high fertility conditions. Treatment differences for days to maturity were no greater than about 1 d. Fungicide by fertility treatment interactions were not significant (P>0.05). Applications of propiconazole improved yield by 305 kg ha−1 (6%) and plump kernels by 3 g kg−1 (3%) across all fertility treatments, which included N fertilizer rates ranging from 0 to 90 kg N ha−1. The effect of fungicide on yield was greatest at sites with highest yield potentials (ca. 8000 kg ha−1) and was not statistically significant at lower-yielding sites (ca. 3000 kg ha−1). Application of propiconazole also improved net returns [barley revenue – (N cost+propiconazole cost+other operating costs)] by $22 ha−1 with higher barley priced ($190 T−1) and high yield potentials. At sites with low yield potential, the application of propiconazole resulted in net losses of about $7 ha−1 compared with not applying propiconazole. Nitrogen fertilizer rates from 0 to 90 kg N ha−1 (15/30-0 P-K fertilizer treatment combinations) increased yield and protein concentration, and reduced plump kernels in a curvilinear fashion when averaged across fungicide treatments. Net returns were maximized at N fertilizer rates slightly less than 90 kg N ha−1, depending on the price/cost regime. Consequently, malt barley producers will have to consider tradeoffs regarding N fertilizer rate that optimizes yield/returns and kernel quality. Also, decisions regarding fungicide applications and N/P/K fertilizer rate-placement applications can be made independent of each other for malt barley production.

scholarly journals The Influence of Various N-P-K Fertilizer Levels on Onion Production in Southern Puerto Rico.

1969 ◽  
Vol 63 (2) ◽  
pp. 111-115
Author(s):  
S. Alers-Alers ◽  
E. Orengo-Santiago ◽  
L. Cruz Pérez
Keyword(s):  
Puerto Rico ◽  
Coastal Plain ◽  
High Fertility ◽  
Long Period ◽  
Yield And Quality ◽  
Average Production ◽  
The World ◽  
K Fertilizer ◽  
Onion Cultivar

An experiment was conducted on a San Anton (Cumulic Hasplustolls) fine loamy mixed isohyperthermic in the southern irrigated coastal plain of Puerto Rico, to evaluate the influence of various N-P-K levels on yield and quality of onion (cultivar Texas Grano 502). All P and K fertilizer were broadcast and mixed with the soil at planting. Half of the N fertilizer was broadcast at planting and half was banded 6 weeks later between rows and left uncovered. Mean yield differences attributable to fertilizer levels were not significant. The soil seems to have sufficient available native N to meet this crop's needs. This may be in part attributable to continuous fertilizer applications over the years for sugarcane production in this soil. An average onion production of 22 metric tons/ha was obtained. The world average production is 11 metric tons/ha. Based on the results obtained, the production of onions in th is soil is recommended for two reasons: 1) The high tonnage that can be obtained, and 2) the low investment on fertilizers if planted on soils of high fertility, especially if previously used for sugarcane and fertilized over a long period.

scholarly journals Potassium requirements and effects of K fertilizer application on yield and quality of bananas in Guangxi, China

Tropics ◽  
2006 ◽  
Vol 15 (1) ◽  
pp. 115-120
Author(s):  
Hongwei TAN ◽  
Liuqiang ZHOU ◽  
Rulin XAIE ◽  
Meifu HUANG
Keyword(s):  
Fertilizer Application ◽  
Yield And Quality ◽  
K Fertilizer

scholarly journals Yield and Quality of Tomatoes On the Giving of Mikotricho and N-P-K Fertilizer

2020 ◽  
Vol 11 (3) ◽  
pp. 192-201
Author(s):  
Eny Rokhminarsi ◽  
Darini Sri Utami ◽  
Begananda
Keyword(s):  
Vitamin C ◽  
Yield And Quality ◽  
K Fertilizer

Tujuan penelitian adalah mengkaji pemberian pupuk hayati Mikotricho dan pupuk N-P-K terhadap hasil dan kualitas tomat.  Penelitian dilaksanakan pada bulan Mei sampai Oktober 2020. Penelitian berupa percobaan faktorial di screenhouse.  Rancangan yang digunakan adalah Rancangan Acak Kelompok Lengkap (RAKL) dengan tiga ulangan. Faktor pertama adalah dosis pupuk Mikotricho yaitu 10 g, 30 g, dan 50 g tanaman-1. Faktor kedua adalah pengurangan dosis pupuk N-P-K yaitu pengurangan 0%, 25%, 50% dari dosis anjuran dan kontrol (tanpa pupuk Mikotricho dan tanpa pupuk N-P-K). Data dianalisis menggunakan analisis ragam dan uji lanjut BNT 5%. Hasil penelitian menunjukkan bahwa aplikasi pupuk mikotricho pada budidaya tomat dapat meningkatkan volume buah dan hasil buah tanaman-1 pada dosis 30 g tanaman-1 dan tanpa pegurangan pupuk N-P-K yang berupa urea, SP-36 dan KCl dari dosis anjuran.  Pada jumlah buah tanaman-1, aplikasi pupuk mikotricho dosis 30 g tanaman-1 dapat meningkat dengan pengurangan dosis N-P-K sebanyak 25%. Aplikasi pupuk mikotricho pada dosis 30 g tanaman-1 juga dapat meningkatkan kandungan vitamin C dan mengurangi pupuk N-P-K hingga 25%, sedangkan kadar gula dalam buah meningkat pada pemberian pupuk mikotricho dosis 10 g tanaman-1. Kata kunci: mikoriza, produksi, sayuran, trichoderma

The evaluation of potassium metaphosphate as a source of potassium for potatoes with special references to foliar diagnosis, yield and quality of tubers

1966 ◽  
Vol 67 (2) ◽  
pp. 281-285 ◽  
Author(s):  
D. Lachover ◽  
Helena Feldhay
Keyword(s):  
Potassium Chloride ◽  
Normal Development ◽  
Application Rate ◽  
Potassium Sulphate ◽  
High Potassium ◽  
Potato Plants ◽  
Yield And Quality ◽  
K Fertilizer ◽  
Foliar Diagnosis

1. The availability of K in potassium metaphosphate was investigated in an experiment with large pots using a red sandy soil, low in exchangeable potassium. Potatoes were grown. The effects of potassium metaphosphate in three different granule sizes, applied at two rates, were compared with those of equivalent potassium chloride and potassium sulphate.2. Characteristic deficiency symptoms appeared in plants receiving no K and the crop responded to K fertilizer in potassium concentration, yields of tubers, and dry matter, and starch concentrations.3. Potassium metaphosphate, regardless of granule size and of application rate, was as effective as potassium chloride and potassium sulphate in giving normal development of potato plants, high potassium uptake in the foliage, and yield of tubers.

Evolution of yield and quality of sainfoin (Onobrychis viciifolia Scop.) in the spring growth cycle

Agronomie ◽  
2003 ◽  
Vol 23 (3) ◽  
pp. 193-201 ◽  
Author(s):  
Giorgio Borreani ◽  
Pier Giorgio Peiretti ◽  
Ernesto Tabacco
Keyword(s):  
Growth Cycle ◽  
Onobrychis Viciifolia ◽  
Yield And Quality

Орошение томата F1 Донской в открытом грунте Московской области

2019 ◽  
Author(s):  
D.I. Engalychev ◽  
N.A. Engalycheva ◽  
A.M. Menshikh
Keyword(s):  
Experimental Data ◽  
Agricultural Technology ◽  
Tomato Fruits ◽  
River Floodplain ◽  
Yield And Quality ◽  
Open Ground ◽  
Alluvial Meadow ◽  
Standard Production ◽  
Moscow River

Представлены экспериментальные данные о влиянии капельного орошения на урожайность и качество плодов томата при выращивании культуры в открытом грунте Московской области. На плодородных аллювиальных луговых почвах Москворецкой поймы при соблюдении агротехники без орошения в среднем за три года исследований в полевых условиях получена урожайность томата F1 Донской 31,9 т/га, с орошением 48,5 т/га, в т.ч. стандартной продукции 42,6 т/га.The article presents experimental data on the effect of drip irrigation on the yield and quality of tomato fruits when growing crops in open ground of the Moscow Region. On fertile alluvial meadow soils of the Moscow river floodplain, with the observance of agricultural technology without irrigation, the field yield of tomato hybrid F1 Donskoi on average for three years of research was 31.9 t/ha, with irrigation 48.5 t/ha, incl. standard production 42.6 t/ha.

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