EFFECTS OF FARMYARD MANURE, FERTILIZERS AND GREEN MANURING IN RICE-WHEAT SYSTEMS IN BHUTAN: RESULTS FROM A LONG-TERM EXPERIMENT

An experiment conducted from 1988 to 1997 to determine the effects of the timing of application and nutrient supply (particularly of phosphorus) is reported. The sources of applied nutrients that were compared were farmyard manure, pre-rice green-manuring with Sesbania aculeata and fertilizer application in a rice-wheat rotation on a typic ustifluvent. The application of seven tonnes farmyard manure per hectare to both the rice and the wheat crops over eight years increased organic carbon levels from 1.4 to 1.6% but had no yield effect on either crop. Phosphorus application through farmyard manure was not adequate for rice, whilst an application of 34 kg P ha−1 to the rotation gave an economic yield increase only in rice and then only in the first four years of the experiment. From the third year, green manuring was able to replace the effects of the recommended nitrogen, phosphorus and potassium fertilizer applications in increasing rice yield. Green manuring had no effect on the wheat yield but the recommended fertilizer application increased yield. Green manuring increased soil total nitrogen and available potassium levels and reduced base saturation. After adjusting rice yields for variation in transplanting date between years there was no statistical evidence of a yield trend in either crop over the period of the experiment. Farmers' practice of applying seven tonnes farmyard manure per hectare appears adequate to produce stable rice paddy yields of 4–6 t ha−1 a−1.

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Impact of Soil Test Based Fertilizer Application on Yield, Soil Health and Economics in Rice

10.48165/ijee.2021.57432 ◽

2021 ◽

Vol 57 (4) ◽

pp. 147-149

Author(s):

M. Jayalakshmi ◽

G. Prasadbabu ◽

B. H. Chaithanya ◽

R. Bindhupraveenaand ◽

T. Srinivas

Keyword(s):

Organic Carbon ◽

Carbon Content ◽

Farmyard Manure ◽

Soil Health ◽

Fertilizer Application ◽

Soil Test ◽

Organic Carbon Content ◽

Yield Increase ◽

Net Returns ◽

Phosphorus And Potassium

Frontline demonstrations were carried out to study the soil test-based fertilizer application on yield, soil health and economics in rice during the kharif seasons of 2017, 2018 & 2019 in farmers’ fields of Kurnool district of Andhra Pradesh. The demonstrations conducted in ten locations revealed that application of nitrogen, phosphorus and potassium based on soil test values resulted in an average yield increase of 5.01 per cent over the farmer’s practice. Demonstration plots recorded an average B: C ratio of 2.9 against farmers’ practice of 2.4 and the technology index reduced from 3.84 to 1.53 per cent. The organic carbon content increased from 0.45 to 0.50 per cent due the application of farmyard manure based on soil test value. The soil test based fertilizer application resulted in higher yield, net returns, B:C ratio and organic carbon content and low technology index indicates the feasibility of technology to adopt at farmers’ level.

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Effect of phosphorus and potassium fertilizer on crop response and soil fertility in a long-term experiment

Fertilizer Research ◽

10.1007/bf01050674 ◽

1988 ◽

Vol 15 (2) ◽

pp. 123-136 ◽

Cited By ~ 8

Author(s):

Ren-Gang Li ◽

SA Barber

Keyword(s):

Soil Fertility ◽

Potassium Fertilizer ◽

Crop Response ◽

Term Experiment ◽

Long Term Experiment ◽

Phosphorus And Potassium

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ВЛИЯНИЕ УДОБРЕНИЙ НА ФОРМИРОВАНИЕ ПЛОТНОСТИ АГРОЦЕНОЗА, ПОСЕВНЫЕ КАЧЕСТВА И БИОХИМИЧЕСКИЙ СОСТАВ СЕМЯН ЯРОВОЙ ПШЕНИЦЫ

Niva Povolzhya ◽

10.36461/np.2019.52.3.001 ◽

2019 ◽

pp. 2-8

Author(s):

L.V. Karpova ◽

A.V. Strogonova

Keyword(s):

Spring Wheat ◽

Biochemical Composition ◽

Fertilizer Application ◽

Natural Fertility ◽

Potassium Fertilizer ◽

Protein Nitrogen ◽

Germination Energy ◽

Biological Potential ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

Наличие микроэлементов в почвах нашей страны находится в большом дефиците, что не позволяет оправдать биологический потенциал продуктивных показателей основных сельскохозяйственных культур. Цель исследований научное обоснование выбора наиболее эффективного способа применения комплексных жидких удобрений с микроэлементами в хелатной форме для формирования плотности агроценоза, посевных качеств и биохимического состава семян яровой пшеницы. Установлено, что в среднем за два года исследований полевая всхожесть яровой пшеницы на фоне естественного плодородия находилась в пределах 73,8-78,4, а на фоне внесения азофоски она составила 73,6-79,3. Наибольшее количество сохранившихся растений к уборке отмечено как на фоне без внесения удобрений, так и на фоне минерального питания в вариантах с обработкой семян Мегамикс-семена и Мегамикс-Профи в фазы кущения и колошения 386 и 388 растений на 1 м2. Микроэлементные удобрения оказали влияние на массу 1000 семян, энергию прорастания, лабораторную всхожесть и силу роста. При выращивании данной культуры на фоне внесения N16P16K16 масса 1000 семян увеличилась на 10,1 по вариантам опыта, энергия прорастания 9,4, лабораторная всхожесть на 6,9, масса 100 ростков на 17, а длина ростка 18,9. Биохимический состав зерна показывает запас питательных элементов: белка, азота, фосфора и калия, наибольшее количество которых накопилось в зерне яровой пшеницы, выращенной при обработке семян и посевов удобрениями Мегамикс-семена и Мегамикс-Профи .There is a great shortage of trace elements in the soils of our country, which does not justify the biological potential of the productive indicators of the main crops. The research objective is the scientific substantiation of the choice of the most effective way of applying complex liquid fertilizers with microelements in chelated form to form the density of agrocenosis, seedlings qualities and biochemical composition of spring wheat seeds. It was established that, on average, over two years of research, the field germination of spring wheat against the background of natural fertility was in the range of 73.8-78.4, and against the background of the application of nitrogen-phosphorus-potassium fertilizer it amounted to 73.6-79.3. The largest number of plants remained for harvesting was noted both against the background without fertilizer application and against the background of mineral nutrition in the variants with seed treatment with Megamix-seeds and Megamix-Profi in the tillering and heading stages - 386 and 388 plants per 1 m2. Micronutrient fertilizers influenced the weight of 1000 seeds, germination energy, laboratory germination and growth power. When growing this crop against the background of N16P16K16 application, the weight of 1000 seeds increased by 10.1 according to the experimental variants, germination energy - 9.4, laboratory germination by 6.9, weight of 100 sprouts - by 17, and sprout length - 18.9. The biochemical composition of the grain shows a supply of the following nutrients: protein, nitrogen, phosphorus and potassium, the largest amount of which was accumulated in spring wheat grain grown during the treatment of seeds and crops with fertilizers Megamix-seeds and Megamix-Profi.

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Yield Response of Groundnut (Arachis hypogaea L.) to Boron, Calcium, Nitrogen, Phosphorus and Potassium Fertilizer Application

International Journal of Soil Science ◽

10.3923/ijss.2017.18.24 ◽

2016 ◽

Vol 12 (1) ◽

pp. 18-24 ◽

Cited By ~ 2

Author(s):

Meki Chirwa ◽

Jerome Peter Mrem ◽

Peter Wilson Mta ◽

Abel Kaaya ◽

Obed Isaac Lung

Keyword(s):

Arachis Hypogaea ◽

Fertilizer Application ◽

Yield Response ◽

Potassium Fertilizer ◽

Arachis Hypogaea L ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

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Fertilizer Management For Wheat Crop In The Himalayan Piedmont Soil

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v38i2.15887 ◽

2013 ◽

Vol 38 (2) ◽

pp. 241-246

Author(s):

ATM Sakhawat Hossain ◽

F Rahman ◽

GM Panaullah ◽

MA Saleque

Keyword(s):

Management Practice ◽

Wheat Yield ◽

Fertilizer Application ◽

Wheat Crop ◽

Soil Test ◽

Fertilizer Management ◽

Yield Increase ◽

S Uptake ◽

Partial Factor Productivity ◽

Partial Factor

An experiment was conducted at the farmers fields in the Himalayan Piedmont soil to evaluate the soil test based (STB) fertilizer dose on wheat crop practicing in the rice wheat cropping sequence during the Rabi season 2002-2003. Three fertilizer treatments: (i) no fertilizer (control), (ii) local farmers fertilizer management practice (FP) and (iii) soil test based fertilizer dose (STB) were tested in 10 farmers fields. The soils of the test fields were acidic and light textured. Results showed that the control plot produced a mean yield of 1.54 t/ha, which increased to 3.96 t/ha with FP and 4.98 t/ha with STB fertilizer dose. The STB fertilizer dose also increased the nitrogen, P, K and S uptake by wheat. Wheat yield showed a strong linear relationship with N, P, K, and S uptake. Partial factor productivity (PFP) of fertilizer (sum of N, P, K and S) was 25.2 kg/kg in FP and that in STB was 24.6 kg/kg. Slightly lower PFP in STB than that of FP may be attributed to the higher dose of N and K in the former. However, the significant yield increase in STB compared with FP encouraged farmers to practice STB fertilizer application for wheat cultivation. Bangladesh J. Agril. Res. 38(2): 241-246, June 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i2.15887

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PRODUCTIVITY AND CHEMICAL COMPOSITION OF ALFALFA AS INFLUENCED BY VARYING LEVELS OF PHOSPHORUS AND POTASSIUM APPLICATIONS

Canadian Journal of Plant Science ◽

10.4141/cjps62-001 ◽

1962 ◽

Vol 42 (1) ◽

pp. 1-10 ◽

Cited By ~ 7

Author(s):

Paul Gervais ◽

J. L. Dionne ◽

W. S. Richardson

Keyword(s):

Phosphorus Fertilization ◽

Silt Loam ◽

Potassium Fertilizer ◽

Greenhouse Study ◽

Initial Application ◽

Surface Samples ◽

Loam Soil ◽

Potassium Supply ◽

Phosphorus And Potassium ◽

Phosphorus Application

In a greenhouse study conducted at the Experimental Farm, Lennoxville, Quebec, P2O5 and K2O were applied separately at rates of 0, 60, 120, 180 and 240 pounds per acre and in all combinations to surface samples of two soil types prior to seeding alfalfa. Nine cuttings were taken and fertilizer treatments were re-applied every three cuttings.On Greensboro loam soil, an initial application of 180 pounds of P2O5 per acre at seeding time followed by applications of 120 pounds after the third and sixth cuttings were necessary for continued yields of alfalfa. On Coaticook silt loam soil, little was gained in yield increases from P2O5 applications higher than 60 pounds per acre. Both soils contained, at the beginning of the investigation, sufficient amounts of available potassium for the proper establishment and satisfactory growth of alfalfa. As cropping continued, the needs for applied potassium increased markedly. Yields increased with increasing levels of K2O; however, the response to potassium was more pronounced on Greensboro loam soil than on Coaticook silt loam soil.The Ca content in alfalfa was affected little by phosphorus fertilization but decreased with the potassium supply. The P content increased with increasing rates of phosphorus fertilizer and decreased with increasing rates of potassium fertilizer. The per cent K increased with increasing rates of potassium application and decreased with increasing rates of phosphorus application.

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Effects of farmyard manure and phosphorus and potassium fertilizers on soil properties in rice-wheat rotation

The Journal of Agricultural Science ◽

10.1017/s0021859600062882 ◽

1979 ◽

Vol 92 (2) ◽

pp. 359-362 ◽

Cited By ~ 6

Author(s):

G. N. Formoli ◽

R. Prasad

Keyword(s):

Field Experiment ◽

Soil Properties ◽

Soil Ph ◽

Farmyard Manure ◽

Available P ◽

New Delhi ◽

Potassium Fertilizer ◽

Total N ◽

Organic C ◽

Phosphorus And Potassium

SummaryThe effects of farmyard manure (FYM) and P and K fertilizers on soil properties were studied at the end of a 3-year (1972–5) field experiment at New Delhi, India. Each year a crop of rice and wheat was grown. FYM was applied at 0 or 15 t/ha, phosphorus at 0, 30 and 60 kg P2O5/ha and potassium at 0 or 60 kg K2O/ha. Treatments included application of manure and fertilizer to rice or wheat alone or to both the crops. FYM application increased organic C, total N and available K and P in the soil, the effects being greater when both rice and wheat received FYM. Application of FYM slightly decreased the soil pH. Phosphorus and potassium fertilizer increased available P and K in the soil, respectively.

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Yield, nutrient uptake and soil fertility balance as influenced by organic and inorganic nutrient sources in urdbean-wheat cropping system

International Journal of Agricultural Invention ◽

10.46492/ijai/2016.1.1.4 ◽

2016 ◽

Vol 1 (01) ◽

pp. 24-29

Author(s):

Adesh Singh ◽

Joginder Singh

Keyword(s):

Grain Yield ◽

Farmyard Manure ◽

Wheat Yield ◽

Residual Effect ◽

Dry Matter Accumulation ◽

Fertility Level ◽

Positive Balance ◽

Npk Uptake ◽

Phosphorus Application ◽

Recommended Level

A field experiment was conducted at Department of Agronomy, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, to study the direct and residual effect of organic and inorganic sources of nutrients under urdbean-wheat cropping sequence. Growth parameters viz. plant population/m2, plant height, branches/plant and dry matter accumulation/plant at maturity varied significantly due to farmyard manure @ 5t/ha and/or phosphorus @ 40kg P2O5/ha than that of their respective control during both the years. Significantly higher grain yield and NPK uptake in urdbean were also obtained with farmyard manure and phosphorus application over control. Wheat yield (grain, straw and biological) and K uptake did not differ significantly due to residual effect of farmyard manure and phosphorus, whereas NPK uptake varied with residual farmyard manure and phosphorus applied to urdbean during both the years. Maximum grain, straw and biological yield and NPK uptake in wheat were recorded with 100% of recommended fertilizer level, being on par with 75% of recommended level, as compared to 50% of recommended level during both the years. The wheat grain yield with 75% of recommended NPK out yielded 3.14 and 4.08q/ha than 50% of recommended NPK during 2004-05 and 2005-06, respectively. After two crop cycle, the minimum depletion (positive balance ie. the lowest negative values for nitrogen and potassium) was observed at highest fertility level (5t FYM with 40 kg P2O5/ha to urdbean+100% NPK to wheat).

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The Dessau Grassland Experiment—Impact of Fertilization on Forage Quality and Species Assembly in a Species-Rich Alluvial Meadow

Agriculture ◽

10.3390/agriculture11040339 ◽

2021 ◽

Vol 11 (4) ◽

pp. 339

Author(s):

Sandra Dullau ◽

Knut Rydgren ◽

Anita Kirmer ◽

Urs Georg Jäger ◽

Maren Helen Meyer ◽

...

Keyword(s):

Nitrogen Fertilization ◽

Conservation Status ◽

Forage Quality ◽

Habitats Directive ◽

Long Term Experiment ◽

Phosphorus And Potassium ◽

Eu Habitats Directive ◽

Summer Flood ◽

The Impact ◽

Species Assembly

Since alluvial meadows of river valleys of the Cnidion dubii are protected by the EU Habitats Directive, reconciling farmers’ demands for forage quality with the objective of maintaining them in good conservation status is an important issue in grassland research. In a long-term experiment from 2010 to 2018, we investigated the impact of fertilizing on forage quality and species assembly on a species-rich and twice-mown alluvial grassland in the Dessau Elbe floodplain (Germany). The experiment was composed of an unfertilized control, PK, N60, N60PK and N120PK applications. A significant improvement in forage quality was achieved by nitrogen fertilization only for crude protein, with higher feeding requirements for sheep met only in individual years. The legume cycle was inhibited by the application of nitrogen and high grass cover was maintained, but not increased, at the highest nitrogen application after an exceptional summer flood. The target forbs persisted in numbers over the study period in all treatments. For cover, the low-competitive target forbs responded neutrally to nitrogen fertilization, whereas detrimental effects were demonstrated for the competitive ones. Thus, we recommend not applying more than 60 kg year−1 of nitrogen and only in combination with phosphorus and potassium.

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