Diagnostic leaf analysis for stone fruit. 7. Effects of fertilizer nitrogen, phosphorus, and potassium on leaf composition of peach

1976 ◽  
Vol 16 (82) ◽  
pp. 775 ◽  
Author(s):  
DR Leece
Keyword(s):  
Sandy Loam ◽  
Practical Importance ◽  
Phosphorus Concentration ◽  
Fertilizer Nitrogen ◽  
Leaf Analysis ◽  
Loam Soil ◽  
Phosphorus And Potassium ◽  
Peach Trees ◽  
Leaf Composition ◽  
Nitrogen Phosphorus

The effects of fertilizer nitrogen, phosphorus and potassium on the leaf composition of Halehaven peach trees were measured for two seasons in a factorial experiment conducted in a block of mature, bearing trees on a sandy loam soil. Fertilizer nitrogen increased the leaf concentrations of nitrogen, iron, copper, manganese and zinc, and decreased the concentrations of potassium, calcium, magnesium and boron. Phosphorus concentration was not changed. Effects of fertilizer phosphorus and potassium on leaf composition were very slight and would not have been of practical importance in diagnosis by leaf analysis.

Effect of nitrogen, phosphorus and potassium application on yield of potato tubers (Solatium tuberosum L.)

1987 ◽  
Vol 108 (2) ◽  
pp. 321-329 ◽  
Author(s):  
U. C. Sharma ◽  
B. R. Arora
Keyword(s):  
Field Experiments ◽  
Sandy Loam ◽  
Farmyard Manure ◽  
Potato Tubers ◽  
Solatium Tuberosum ◽  
Loam Soil ◽  
Potassium Application ◽  
Phosphorus And Potassium ◽  
Grade Increase ◽  
Nitrogen Phosphorus

SummarySix field experiments, three each during 1982–3 and 1983–4, were conducted on a sandy loam soil to study the effect of varying levels of nitrogen, phosphorus and potassium, in the absence and presence of farmyard manure (FYM) (30 t/ha), on the number of tubers and yield of potato in three grades. Increase in nitrogen, phosphorus and potassium application, in the absence or presence of FYM, did not significantly affect the total number of tubers/m2 but did affect the number of tubers in different grades. An increase in nitrogen and potassium significantly decreased the number of tubers/m2 in small (< 25 g) and increased in medium (25–75 g) and large (> 75 g) grades at 45, 60, 75 and 90 days after planting. Increase in the application of phosphorus increased the number of tubers/m2 in the small grade and decreased it in the large grade but did not affect the number in the medium grade. Increase in nitrogen and potassium application decreased the tuber yield in the small grade and increased it in the medium and large grades. Applied phosphorus increased the yield in the small and medium grades and decreased it in the large grade. The increase in the yield of tubers with increase in nitrogen and potassium application was found to be caused by an increase in the number of tubers in the medium and large grades at the expense of the small grade; however, with applied phosphorus the increase in yield was due to increase in the weight of individual tubers within the small and medium grades. FYM application decreased the number of tubers in the small grade and increased it in the medium and large grades. The response of potato to nitrogen increased and to phosphorus and potassium decreased with the application of FYM.

scholarly journals Agronomical Field Testing of New Kinds of Multicomponent Mineral Fertilizers

2014 ◽  
Vol 17 (1) ◽  
pp. 79
Author(s):  
K.T. Zhantasov ◽  
Z.U. Myrhalykov ◽  
S.M. Moldabekov ◽  
M.K. Zhantasov ◽  
B.T. Omarov ◽  
...  
Keyword(s):  
Sandy Loam ◽  
Mineral Fertilizer ◽  
Field Testing ◽  
Fertilizer Application ◽  
Sandy Loam Soil ◽  
Mineral Fertilizers ◽  
Essential Difference ◽  
Loam Soil ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Analysis of modern scientific literature and patents has shown the absence of acid-free production technology of a mechanically activated multicomponent mineral fertilizer containing water-holding substances. Experimental researches connecting with mechanochemical activation and physicochemical properties of Karatau phosphorites prove a possibility of development of a new multicomponent mineral fertilizer. Application of inorganic and organic activators considerably improves qualities of fertilizers because the developed fertilizer mixtures contain nitrogen, phosphorus, potassium, humate and microelements. The suggested technology intends to use wastes of coal mining that leads to presence of humates and microelements in the end product. It was determined, that content of total nitrogen, phosphorus and potassium depends on a form of nitrogen-phosphorus-potassium-containing substances. The given article contains data of researches connecting with use of multicomponent mineral fertilizers in field conditions for cotton cultivation on irrigated light sierozems consisting of soil-forming rocks of loess and loess-type clay loams. The research results show the increase of soil’s fertility and cotton’s productivity. Studying of agronomic efficiency of the new kinds of mechanically activated multicomponent mineral fertilizers at the cultivation of a bean-cereal mixture has been carried out in the Negorelsk experimental nursery-garden of the Belarus State Technical University on a sod-podzol sandy-loam soil and has shown the essential influence on productivity and quality of the bean-cereal mixture. The researches fulfilled on a sod-podzol sandy-loam soil have revealed the essential increase of key indicators of feed productivity. Application of the mineral fertilizers has promoted increase of nitrogen, phosphorus and potassium content in green plants. In so doing content of calcium and magnesium in green mass depends from quantity of the fertilizer used to a smaller extent. An essential difference of crop capacity and feed productivity indicators depending on forms of the applied mineral fertilizers has not been found.

scholarly journals The utilization of agro-industrial waste for soil amendment and liquid biofertilizer mixed bacterial antagonist in eggplant production

2021 ◽  
Vol 883 (1) ◽  
pp. 012087
Author(s):  
S Boonraeng ◽  
N Punyoyai
Keyword(s):  
Organic Matter ◽  
Bacterial Wilt ◽  
Industrial Waste ◽  
Soil Amendment ◽  
Sandy Loam ◽  
Soil Improvement ◽  
Mango Peel ◽  
Loam Soil ◽  
Phosphorus And Potassium ◽  
Organically Grown

Abstract This research aimed to improve soil fertility with soil amendment, prepared from agro-industrial waste, and application of antagonistic bacteria for controlling bacterial wilt disease. The experiments were tested on sandy-to-sandy loam soil with low organic matter and nutrients for planting eggplants. Besides the soil improvement with spent mushroom waste and mango peel mixed kernel, the results showed that soil pH, soil organic matter, nitrogen, phosphorus, and potassium increased as available levels. Also, two species of bacterial antagonist named Bacillus subtilis and B. amyloliquifaciens were cultured and mixed in liquid biofertilizer. It was spiked for soil preparation before planting and during crop growth every week, which was affected by eggplant survival from bacterial wilt by 100% and 97% in plot and field-tested, respectively. The results from testing on sandy loam with the use of liquid biofertilizer three times/week showed that Ralstonia solanacearum in soil suppressed to the reduction of 1,000-10,000 times. The yield increased by 25.9%. The optimum harvesting time was 12-15 days of fruit growth with the antioxidant activity. Finally, this study has excellent potential to be extended for farmers who organically grown.

scholarly journals Effect of Irrigation and Berm on Growth of Peach Trees during Establishment

HortScience ◽  
1998 ◽  
Vol 33 (4) ◽  
pp. 600b-600
Author(s):  
B.D. McCraw ◽  
Becky Carroll
Keyword(s):  
Sandy Loam ◽  
Tree Trunk ◽  
Water Drainage ◽  
Production Region ◽  
Canopy Area ◽  
Significant Difference ◽  
Loam Soil ◽  
Soil Effects ◽  
Peach Trees

Long-term success in peach production requires the best possible site, but the ideal site is difficult to find. Risk of crop loss to spring freeze dictates that trees be on high ground. As a result, the best site available may have less than optimum soil. Effects of irrigation on peach tree growth are well documented. Raised beds have been used in other crops to insure adequate water drainage away from roots of crop plants. Results from larger beds or berms in combination with irrigation on peaches have been reported in Ohio, but little information is available for the southeast production region. In this study, berms on a Teller Fine Sandy Loam soil were constructed with a road grader in Oct. 1993. The berms were 55.8 cm high, 61 cm wide at the top, and sloped ≈30° to a base width of 4.3 m. `Flameprince'/Lovell trees were planted in Mar. 1994, 6.1 m between rows and 5.5 m between trees in rows. The experiment was a split-plot design with four replications and three trees per treatment replication. Treatments consisted of no irrigation, 40% or 80% pan evaporation (PE) replacement in combination with berm or flat planting surface. Irrigation was supplied by means of emitters which applied 3.7 L per hour. Two emitters per tree were located in the row 45.7 cm either side of the tree trunk. During the first 4 years there was no significant difference between 40% and 80% PE irrigation treatments. Likewise, no significant interactions occurred. Tree trunk caliper, canopy area, and height were greater in irrigated plots and the same or greater from trees in flat plots in all cases.

Downward movement and transformation of phosphorus in soils after long-continued fertilizer application to coconut (Cocos nucifera)

1977 ◽  
Vol 89 (2) ◽  
pp. 279-284 ◽  
Author(s):  
P. Loganathan ◽  
V. Nalliah
Keyword(s):  
Rock Phosphate ◽  
Sandy Loam ◽  
Cocos Nucifera ◽  
Fertilizer Application ◽  
Phosphorus Concentration ◽  
Downward Movement ◽  
Extractable P ◽  
Dry Zone ◽  
Loam Soil ◽  
Phosphate Treatment

SummaryDeterminations of sodium bicarbonate (pH 8·5) extractable P made on profiles of a sandy loam soil 7 and 8 years after fertilizer application to coconut in the Dry zone of Sri Lanka showed that the downward movement of P from concentrated superphosphate was greater than from rock phosphate (saphos). The surface layers (0–15 cm) of soil given concentrated superphosphate had higher P values (60 and 89 mg/kg for the 8th and 9th year respectively) than those given rock phosphate (3 and 16·5 mg/kg). At 40 cm depth the concentrated superphosphate treatment had 6 and 30 mg P/kg but the rook phosphate treatment had almost zero P at and below 40 cm.Phosphorus in the soil profile 8 years after fertilizer application was fractionated by the method of Chang & Jackson. Concentrated superphosphate treatment increased the Al-P and to a lesser degree Fe-P and Ca-P. Rock phosphate treatment increased the Ca-P and to a lesser extent Fe-P and Al-P. Phosphorus concentration in the 14th leaf was significantly correlated with Al-P, Fe-P and NaHCO3-P but not with Ca-P and organic P.The significance of the findings to phosphorus fertilizer application to coconut is discussed.

Responses of nine tropical grasses to nitrogen fertilizer under rain-grown conditions in south-eastern Queensland. 2. Concentrations and uptakes of nitrogen, phosphorus and potassium in plant tops

1984 ◽  
Vol 24 (126) ◽  
pp. 415 ◽  
Author(s):  
BG Cook ◽  
JC Mulder
Keyword(s):  
Potassium Concentration ◽  
Nitrogen Concentration ◽  
Annual Rainfall ◽  
Phosphorus Concentration ◽  
Panicum Maximum ◽  
Tropical Grasses ◽  
Digitaria Decumbens ◽  
Phosphorus And Potassium ◽  
A Site ◽  
Nitrogen Phosphorus

Nitrogen, phosphorus and potassium concentrations were determined in plant tops harvested every four weeks from nine tropical grasses fertilized with nitrogen on ten occasions at eight week intervals. Nitrogen was applied at three rates-25, 50 and 100 kg/ha (N25, N50, N100)-on each occasion. Grasses were rain-grown without grazing at a site near Gympie with an average annual rainfall of 1160 mm. Overall, nitrogen concentration in the tops increased and potassium concentration decreased with increasing nitrogen application. Phosphorus concentrations were constant at N25 and N50, but were lower at N 100. Mean nitrogen concentration was highest at 2.4% in Pennisetum clandestinum cv. Whittet, and lowest at 1 .9% in Chloris gayana cvv. Callide and Katambora, with intermediate concentrations occurring in Digitaria decumbens, Setaria sphacelata var. sericea cv. Narok, Panicum maximum cvv. Gatton and Makueni, Brachiaria decumbens cv. Basilisk and Paspalurn plicatulum cv. Bryan. Phosphorus concentration was highest in Whittet at 0.38% and lowest in Bryan at 0.25%. Potassium concentration was highest in Whittet at 2.53% and Narok at 2.29% and lowest in Katambora at 1 .48%. The implications of these concentrations and calculated nutrient uptakes are discussed in relation to animal and plant nutrition.

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