Wyniki wyszukiwania

1

Rola miedzyplonow w ograniczeniu zachwaszczenia plantacji ziemniaka

100%

Plaza A., Ceglarek F., Krolikowska M. A.

Progress in Plant Protection

|

2008

|

tom 48

|

nr 4

1466-1469

2

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The effect of annual application of natural fertilizers, straw or intercrop on the yield of maize cultivated for silage in long-term monoculture

100%

Sulewska H., Szymanska G., Ratajczak K., Panasiewicz K., Jazic P.

Acta Scientiarum Polonorum. Agricultura

|

2016

|

tom 15

|

nr 3

The study was conducted in the years 2005-2008 in the fields of the Experimental Station Swadzim (52o26’ N; 16o45’ E) belonging to ZDD Gorzyń, property of the Poznań University of Life Sciences. Two experiments with PR 39G12 maize cultivar were conducted in fields, where previously maize was sown in a six-years monoculture. The aim of the study was to evaluate the effects of natural fertilizers, straw or intercrop applied together with mineral fertilizers. We investigated whether this approach can reduce the negative effects of maize cultivation in monoculture system and at the same time help to increase the silage yield. The assessment of plant response was made on two soil classes. It has been shown that the use of natural fertilizers, straw or an intercrop (rye with vetch), reduced the negative effects of maize growing in monoculture and led to a significant increase in the dry mass yield of whole plants on IIIa soil class.

3

Gorczyca biala w miedzyplonach i plonie glownym

100%

Zarzecka K., Rudzinski R.

Agrochemia

|

2000

|

nr 05

31-32

4

Effects of intra-row spacing of sezame (Sesamum indicum L.) and frequency of weeding on yields of maize-sesame intercrop in Makurdi, Nigeria

100%

Ijoyah M. O., Idoko J. A., Iorlamen T.

International Letters of Natural Sciences

|

2015

|

tom 38

Field experiments were conducted from July to October, during 2012 and 2013 cropping seasons, at the Research Farm, University of Agriculture, Makurdi, Nigeria, to evaluate the effects of intra-row spacing of sesame and frequency of weeding on yields of maize-sesame intercrop. The trial was a 3 x 3 factorial experiment fitted in a randomized complete block design with four replications. Nine of the treatments consisted of intercropped maize with sesame sown at the intrarow spacing of 10 cm, 15 cm and 20 cm, and at the varied weeding frequencies: maize-sesame intercrop sown on plots weeded once (1x) at 3 weeks after planting (WAP); maize-sesame intercrop sown on plots weeded twice (2x) at 3 and 6 WAP; maize-sesame intercrop sown on plots not weeded (NW). Sole sesame and sole maize respectively sown at their recommended intra-row spacing of 10 cm and 30 cm and at their recommended frequency of weeding (2x at 3 and 6 WAP) constituted the tenth and eleventh treatments, which also served as control plots. The results obtained showed that in a maize-sesame intercrop, increasing intra-row spacing of sesame up to 20 cm, on plots weeded 2x at 3 and 6 WAP, significantly (P≤0.05) produced the highest intercrop yields of maize and sesame. This level of treatment not only recorded the lowest competitive pressure, but gave the highest total intercrop yields, highest land equivalent coefficient values (1.01 and 1.13 respectively, in years 2012 and 2013), indicating the highest yield advantage, and highest land equivalent ratio (LER) values of 2.11 and 2.25 respectively recorded for years 2012 and 2013. With these LER values, 52.6 % and 55.6 % of land were respectively saved in years 2012 and 2013, which could be used for other agricultural purposes. The implication of study showed that, to maximize intercrop yields of maize and sesame in a maize-sesame intercrop, the appropriate intrarow spacing for sesame is 20 cm, while the optimal frequency of weeding is 2x at 3 and 6 WAP. This should therefore, be recommended for Makurdi location, Nigeria.

5

Optimum plant density of okra and itercropping effects on yields of egusi melon-okra mixture, at Makurdi, Nigeria

100%

Ijoyah M. O., Fanen F. T., Aindigh F. D.

International Letters of Natural Sciences

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2015

|

tom 38

A field experiment was conducted from August to November, during the 2012 and 2013 cropping seasons at the Research Farm, University of Agriculture, Makurdi, Nigeria, to identify the optimum plant density of okra and intercropping effects on yields of egusi melon-okra mixture and to assess the yield advantages of the intercropping system. The experiment was a 3x3 split plot arrangement of treatments, fitted in a randomized complete block design (RCBD), replicated four times. The intercropping (sole egusi melon, sole okra and egusi melon-okra mixture) constituted the main plots, while the population densities of okra (33,000, 40,000 and 50,000 plants ha-1 equivalent) into egusi melon were allocated to the subplots. Results of study showed that to maximize intercrop yield of okra in an egusi melon-okra intercrop, the optimal population density of okra is 33,000 plants ha-1, while that of 40,000 plants ha-1 is optimal to maximize intercrop yield of egusi melon. Intercropping egusi melon and okra significantly (P≤0.05) reduced yields of egusi melon (37.5 % and 40.5 % respectively, in years 2012 and 2013) and that of okra (9.7 % and 16.9 % respectively, in years 2012 and 2013). The highest mean land equivalent ratio value of 1.57 and highest land equivalent coefficient values of 0.60 and 0.63 respectively, in years 2012 and 2013, were recorded for okra sown into egusi melon at the population density of 40,000 plants ha-1. It is most advantageous having both crops in intercrop when okra is sown into egusi melon at the population density of 40,000 plants ha-1. This should therefore be recommended for Makurdi location, Nigeria.

6

Wsiewka seradeli zalecana na gleby lekkie

80%

Ksiezak J.

Agrochemia

|

1999

|

nr 02

22

7

Seradela w miedzyplonach

80%

Zajac T., Witkowicz R.

Agrochemia

|

2000

|

nr 12

16-17

8

Miedzyplon z facelii zamiast obornika zwieksza oplacalnosc uprawy ziemniaka jadalnego

80%

Plaza A., Kurkus E.

Ziemniak Polski

|

2007

|

tom 17

|

nr 3

23-26

9

Znaczenie nawozow zielonych z miedzyplonow wsiewek i slomy w uprawie buraka cukrowego. Czesc I. Zachwaszczenie plantacji buraka cukrowego

80%

Buraczynska D., Ceglarek F.

Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin

|

2004

|

nr 234

171-180

10

Znaczenie miedzyplonow w regulowaniu zachwaszczenia zyta ozimego w plodozmianach specjalistycznych

80%

Wojciechowski W., Parylak D.

Progress in Plant Protection

|

2004

|

tom 44

|

nr 2

1217-1219

11

Funkcja miedzyplonow w ochronie zasobow mineralnych i materii organicznej gleby

80%

Harasimowicz-Hermann G., Hermann J.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

2006

|

tom 512

|

nr 1

147-155

Both the losses of mineral components from fields remaining without plant cover and the negative balance of soil organic matter have been pointed out in Poland for a dozen of years. The progressive decline of biogenic components and organic matter degradation should be stopped by means of modifications in crop rotation or the expanding of intercrops cultivation for ploughing under. Intercrops cultivation is included in the package of undertakings additionally subsidized by the EU. The study estimated the intercrops productivity at a site after winter rape in the years with sufficient and limited precipitation level and their impact on the resources of biogenic components and organic matter in soil. Bifactorial field experiments were set up in the system of random blocks in four replications and carried out in years 2004 and 2005 after winter rape harvest. The factors of experiment were: I - systems of plant cover forming on the stubble field after rape crop (objects 1—5) and II - the time of plant biomass storage - 10 weeks (a) and till the end of vegetation (b). Plant cover forming on the stubble field after winter rape crop proceeded as follows: object 1 - was a rape stubble field, from which the straw was gathered at the moment of threshing and ploughing was not performed, but the field was rolled with a spiked roller, so that seeds fallen on the soil during rape harvest could sprout; object 2 - a rape stubble field with ground rape straw left (4.5 t·ha⁻¹ DM) - the field was rolled with a spiked roller and the sprouting of fallen seeds were expected just as on object 1; object 3 - straw was left on the field (4.5 t·ha⁻¹ DM) and ploughed under by means of medium ploughing at the depth of 15 cm, the field was flattened and 10 kg·ha⁻¹ of winter rape was sown; on objects 4 and 5 post-harvest measures were carried out in the same way as on object 3, but white mustard was sown (30 kg·ha⁻¹) on object 4, and the mixture of white mustard and seed oat (15+50 kg·ha⁻¹) - on object 5. Rape straw introduced into soil in the amount of 4.5 t·ha⁻¹ DM contained on average 36 kg nitrogen. In 2004, the plants used over half as much rainwater than in 2005. It was found that depending on species used in the intercrop and their vegetation period, the losses of mineral components from soil were limited, including up to 133 kg·ha⁻¹ total nitrogen (N tot.), up to 101 kg·ha⁻¹ potassium (K), and between ten and twenty kg phosphorus, calcium and magnesium. A considerable amount of organic matter was also introduced together with the biomass of plants ploughed under. It was proved that on the stubble field after rape crop white mustard and its mixture with oat made the most effective plant cover - it produced the highest biomass yield in both compared vegetation periods and years of study.

12

Seradela na nasiona

80%

Szymanski F.

Agrochemia

|

1995

|

nr 11

11-12

13

Rola miedzyplonow w regulacji zachwaszczenia pszenzyta ozimego uprawianego w drugim roku po ich zastosowaniu

80%

Plaza A., Ceglarek F.

Progress in Plant Protection

|

2007

|

tom 47

|

nr 3

238-241

14

Płodozmian w rolnictwie integrowanym

80%

Kus J.

Acta Academiae Agriculturae ac Technicae Olstenensis. Agricultura

|

1997

|

tom 64

135-142

W pracy scharakteryzowano płodozmian w różnych systemach gospodarowania (konwencjonalnym, integrowanym i ekologicznym). Szczegółowo omówiono rolę płodozmianu w rolnictwie integrowanym. Wykazano, że najwyższą efektywność ekonomiczną zapewniają płodozmiany złożone z 3-5 gatunków roślin. Podkreślono, że ważnym elementem zmianowania w rolnictwie integrowanym są rośliny motylkowate poprawiające bilans substancji organicznej i azotu w glebie. Zwrócono uwagę na znaczenie uprawy między plonów w ograniczaniu strat azotu z gleby w okresie jesienno-zimowym. Na podstawie badań podjętych w ostatnich latach wykazano, że tylko wielostronne płodozmiany stwarzają szansę znacznego ograniczenia zużycia nawozów azotowych i pestycydów bez wyraźnego spadku plonów.

15

Miedzyplony na zielony nawoz

80%

Rozylo K.

Agrochemia

|

2000

|

nr 07

33-35

16

Chemiczne zwalczanie chwastow w zbozach ozimych z wsiewka koniczyny lakowej

80%

Soroka S. V., Soroka L. I., Guk N. V.

Progress in Plant Protection

|

2002

|

tom 42

|

nr 1

244-248

17

Wpływ międzyplonów na produkcyjność płodomianów zbożowych

80%

Szylak A.

Acta Academiae Agriculturae ac Technicae Olstenensis. Agricultura

|

1998

|

tom 66

175-180

W badaniach, prowadzonych w latach 1979-1983, na glebie płowej wytworzonej z lessów, określono działanie różnego udziału międzyplonów (rzepak ozimy i koniczyna perska), uprawianych jako rośliny regenerujące glebę, na produkcyjność płodozmianów zbożowych. Stwierdzono, że zwiększenie koncentracji międzyplonów w płodozmianie do 40% powodowało spadek jego produkcyjności.

18

Ocena ekonomiczna uprawy ziemniaka jadalnego w warunkach zroznicowanego nawozenia organicznego

80%

Ceglarek F., Plaza A.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

2006

|

tom 511

|

nr 2

451-457

Paper presents the results of investigations from 1999-2002, which aimed at economic evaluation of table potato production under conditions of differentiated organic fertilization. Two factors were examined in the experiment fertilization with undersown crops (control object, farmyard manure, white clover, Italian ryegrass, white mustard, white mustard + mulch) and fertilization with spring barley straw (subblock with and without straw). Obtained experiment results enabled to state, that the fertilization of table potato with intercrops in combinations with or without straw significantly decreased the direct costs of production in comparison to farmyard manure fertilization. The best productive and economic results in table potato cultivation were obtained in combinations fertilized with white clover and white clover plus straw.

19

Shoot and root competition between spring triticale and field beans during early growth

80%

Sobkowicz P.

Acta Scientiarum Polonorum. Agricultura

|

2005

|

tom 04

|

nr 1

The experiment was carried out according to additive design to study shoot and root competition between spring triticale and field bean during early stages of plant growth. It was conducted in plastic boxes 76 cm long, 15 cm wide and 15 cm deep, filled with 16 kg of aerial dry alluvial sandy loam soil, containing 15-20% of silt. The soil was classified as good rye agricultural suitability complex. Appropriate arrangement of boxes and aboveground aluminium foil partitions allowed separating four competition treatments: no competition, shoot, root and shoot + root competition. The results of the experiment showed that at the beginning of species interaction in triticale-field bean intercrop system, root competition is more intense than shoot competition. Triticale outcompeted field bean when crops interacted with their roots, but when only shoots competed, field bean tended to be the dominant species. The study presented did not show definitely that cereal is better competitor than legume during early stages of plant growth.

20

Produkcyjno-ekonomiczna ocena uprawy pszenżyta ozimego w drugim roku po zastosowaniu międzyplonów i słomy

80%

Plaza A., Ceglarek F.

Acta Scientiarum Polonorum. Agricultura

|

2008

|

tom 07

|

nr 2

Ocenę produkcyjno-ekonomiczną uprawy pszenżyta ozimego wykonano na podstawie wyników eksperymentu polowego przeprowadzonego w latach 1999-2003 w Rolniczej Stacji Doświadczalnej Zawady (52°20’ N; 22°30’ E), należącej do Akademii Podlaskiej w Siedlcach. Pierwszym czynnikiem doświadczenia była obecność i rodzaj międzyplonu: obiekt kontrolny, komonica zwyczajna, komonica zwyczajna + życica wielokwiatowa, gorczyca biała, gorczyca biała – mulcz, natomiast drugim – stosowanie słomy jako nawozu: bez słomy, ze słomą. W pierwszym roku po zastosowaniu międzyplonów i słomy uprawiano ziemniaki jadalne, a w drugim – pszenżyto ozime. Porównano plony, wartość produkcji, bezpośrednie koszty produkcji i nadwyżkę bezpośrednią pszenżyta ozimego uprawianego w drugim roku po zastosowaniu międzyplonów, słomy i międzyplonów ze słomą. Najlepszy wynik produkcyjno-ekonomiczny zapewniło pszenżyto ozime uprawiane w drugim roku po mieszance komonicy zwyczajnej z życicą wielokwiatową w kombinacji ze słomą.

Ograniczanie wyników

Rola miedzyplonow w ograniczeniu zachwaszczenia plantacji ziemniaka

The effect of annual application of natural fertilizers, straw or intercrop on the yield of maize cultivated for silage in long-term monoculture

Gorczyca biala w miedzyplonach i plonie glownym

Effects of intra-row spacing of sezame (Sesamum indicum L.) and frequency of weeding on yields of maize-sesame intercrop in Makurdi, Nigeria

Optimum plant density of okra and itercropping effects on yields of egusi melon-okra mixture, at Makurdi, Nigeria

Wsiewka seradeli zalecana na gleby lekkie

Seradela w miedzyplonach

Miedzyplon z facelii zamiast obornika zwieksza oplacalnosc uprawy ziemniaka jadalnego

Znaczenie nawozow zielonych z miedzyplonow wsiewek i slomy w uprawie buraka cukrowego. Czesc I. Zachwaszczenie plantacji buraka cukrowego

Znaczenie miedzyplonow w regulowaniu zachwaszczenia zyta ozimego w plodozmianach specjalistycznych

Funkcja miedzyplonow w ochronie zasobow mineralnych i materii organicznej gleby

Seradela na nasiona

Rola miedzyplonow w regulacji zachwaszczenia pszenzyta ozimego uprawianego w drugim roku po ich zastosowaniu

Płodozmian w rolnictwie integrowanym

Miedzyplony na zielony nawoz

Chemiczne zwalczanie chwastow w zbozach ozimych z wsiewka koniczyny lakowej

Wpływ międzyplonów na produkcyjność płodomianów zbożowych

Ocena ekonomiczna uprawy ziemniaka jadalnego w warunkach zroznicowanego nawozenia organicznego

Shoot and root competition between spring triticale and field beans during early growth

Produkcyjno-ekonomiczna ocena uprawy pszenżyta ozimego w drugim roku po zastosowaniu międzyplonów i słomy