Temat: crop productivity - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The impact of maize irrigation intervals and potassium fertiliser rates on mealybug populations, vegetative growth, and resulting yield
Autorzy:: Bakry, Moustafa M.S.
Aljedani, Dalal M.
Powiązania:: https://bibliotekanauki.pl/articles/28411627.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: agronomic practices
crop productivity
maize
mealybug
Phenacoccus solenopsis
potassium fertilization
Opis:: The mealybug, Phenacoccus solenopsis (Hemiptera: Coccomorpha: Pseudococcidae), is one of the main pests attacking maize plants in Egypt. Field trials were carried out in the maize field to assess the influence of irrigation periods and potassium fertiliser rates on the mealybug (P. solenopsis) population estimates, vegetative growth, resulting yield, and its components for the maize cultivar (‘Single-Hybrid 168 Yellow’) in the Luxor Governorate, Egypt. Results revealed that unfertilised plants irrigated every seven days had higher pest population densities than other treatments over the two seasons. The fertilised treatments at 114 kg K2O∙ha -1 that received water every 10 days had the smallest population of P. solenopsis in every season. Data during the two seasons (2021 and 2022) revealed that the maize to which potassium fertiliser was added by 114 kg K2O∙ha -1 and irrigated every 10 days had vegetative growth (plant height, diameter, and number of green leaves per plant), yield and its components (average ear length, ear weight, number of grains per ear, weight of 1000 grains, and grain yield) significantly increased as compared to those of the plants that were irrigated every 7 days and without adding fertiliser. A higher dose of potassium fertiliser reduces the infestation of P. solenopsis but causes an increment of maize vegetative growth. This affects the final yield. This information aids farmers in comprehending the good agronomic techniques of maize plants to decrease the infestation of mealybugs and increase the yield.
Źródło:: Journal of Water and Land Development; 2023, 58; 234--242
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Satellite ET-based irrigation performance : Strategies to increase rainfed crops production in the lower Baro watershed, Ethiopia
Autorzy:: Befikadu Deneke, Fiseha
Shetty, Amba
Fufa, Fekadu
Powiązania:: https://bibliotekanauki.pl/articles/27312629.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: crop water productivity
evapotranspiration
irrigation performance
lower Baro
yield gap
Opis:: Satellite-based irrigation performance is a valuable tool for improving yields in irrigated areas across the world and requires adequate land for long-term development. This study aimed to increase irrigation performance and yield gap variation of rainfed crops using the database of FAO’s Water Productivity Open Access Portal (WaPOR) and the Global Yield Gap Atlas. The evapotranspiration (ET) performance of irrigation is expressed in equity (CV of ET), reliability, adequacy (CV of ET), and water productivity (kg∙m-3). The rainfed crops are interpreted in terms of metric tonnes/ha. Specifically, 20,325 km2 of suitable pastoral land across eight sub-classes was converted to rainfed rice, sugarcane, maize, and vegetable crops. Results showed that the R2 value was 0.97 at Baro Itang and -0.99 at Sor Metu, with the Baro Gambella sub-catchment having the largest yield gap of 4.435.2, 8.870.4, and 10.080∙106 kg when the yield increased by 1/3, 2/3, and 3/4. On the other hand, Gumero Gore had the smallest yield gap of 10,690, 29,700, and 33,750 kg, respectively. The management regime was 2.87, 0.87, and 0.35 kg∙m-3 for growers in the estate, farmer association, and individual, respectively. The study concludes that no single irrigation technique can be considered the best, and a thorough analysis of spatiotemporal variation of the irrigation performance indicators and the yield gap in the water-scarce lower Baro watershed is required.
Źródło:: Journal of Water and Land Development; 2023, 58; 53--61
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Produkcyjne i środowiskowe skutki różnych systemów gospodarowania
Productive and environmental consequences of different crop production systems
Autorzy:: Jończyk, K.
Kuś, J.
Stalenga, J.
Powiązania:: https://bibliotekanauki.pl/articles/238977.pdf
Data publikacji:: 2007
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: system gospodarowania
produkcyjność
ochrona środowiska
crop production system
environment protection
technology of field production
productivity
Opis:: Omówiono wyniki badań uzyskanych w latach 1997-2006 w Stacji Doświadczalnej IUNG-PIB w Osinach. Badania prowadzono w obiekcie doświadczalnym umożliwiającym w jednakowych warunkach siedliskowych porównywanie różnych systemów gospodarowania. Poddano analizie produkcyjność roślin oraz całych zmianowań w systemach: ekologicznym, konwencjonalnym intensywnym, integrowanym i monokulturze. Ocenę oddziaływań środowiskowych wykonano na podstawie analizy: zasobności gleby w składniki pokarmowe, bilansu azotu, zawartości azotu mineralnego w glebie i przesączach glebowych. Celem pracy była ocena skutków produkcyjnych i środowiskowych systemów gospodarowania różniących się poziomem intensywności organizacji i stosowanych technologii. Największą wydajność zmianowania stwierdzono w systemie integrowanym 61 j.zb., odpowiednio mniejszą w systemach: ekologicznym 60 j.zb., konwencjonalnym 57 j.zb. i monokulturze 47 j.zb. System ekologiczny, w porównaniu z pozostałymi sposobami gospodarowania, charakteryzował się najkorzystniejszymi wskaźnikami oceny środowiskowej: saldem bilansu N, koncentracją azotu mineralnego w glebie i przesączach glebowych, wymywaniem azotu.
Paper discussed the results of research conducted within 1997-2006 at Osiny Experimental Station, on an experimental object where different crop production systems were compared under similar habitat conditions. The study evaluated productivity of particular crops and the whole crop rotations in organic, conventional and integrated systems and in monoculture of winter wheat, as well as the environmental effects of these systems. Environmental part of the research included evaluation of soil fertility, nitrogen balance, mineral N concentration in soil and soil filtrates. Integrated and organic systems were characterized by the most productive crop rotations. Productivity of these systems amounted to 61 and 60 cereal units, respectively, whereas the productivity of monoculture was the lowest (47 cereal units). Nitrogen balance, mineral N concentration in soil and in soil filtrates appeared to be most environment friendly in the organic system.
Źródło:: Problemy Inżynierii Rolniczej; 2007, R. 15, nr 1 cz.2, 1 cz.2; 13-22
1231-0093
Pojawia się w:: Problemy Inżynierii Rolniczej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Grape production assessment using surface and subsurface drip irrigation methods
Autorzy:: Kadbhane, Sharad J.
Manekar, Vivek L.
Powiązania:: https://bibliotekanauki.pl/articles/1844304.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: crop water requirement
irrigation with plastic bottles
organic mulch
plastic mulch
stone column
sustainable irrigation
water productivity
Opis:: The study involved experimental work implemented from April 2014 until March 2017. Its purpose was to observe grape production quality parameters, such as yield, water productivity, berry size and bio-mass. Different irrigation methods, such as drip irrigation (DI), drip irrigation with plastic mulching (DIPM), drip irrigation with organic mulching (DIOM), subsurface irrigation with stone column (SISC), subsurface irrigation with mud pot (SIMP), and subsurface irrigation with plastic bottles (SIPB) have been used during the experimental work. The crop has been irrigated following the CROPWAT-8.0 model developed by the FAO. Climate parameters are obtained from the automatic weather station located near the experimental field. Based on experimental results and analyses, it has been observed that the drip irrigation with the plastic mulching method is the best for irrigation in terms of the grape yield comparing with all other methods due to its highest productivity of 35–40%. Subsurface irrigation with the plastic bottle method is found to be suitable as it gives 20% higher yield than the traditional drip irrigation method. The SIPB method shows the cost-benefit ratio of 112.3, whereas the DIPM method had the ratio of 36.6. Based on the cost-benefit analysis, it is concluded that the SIPB method is economically more viable as compared with all other methods. Hence, based on the findings, it is recommended to use drip irrigation with a plastic mulching and drip irrigation with a plastic bottle as the best options to achieve grape productivity while using minimum water.
Źródło:: Journal of Water and Land Development; 2021, 49; 169-178
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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