Wyniki wyszukiwania - Biblioteka Nauki

Ten serwis zostanie wyłączony 2025-02-11.

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

3 Journal of Ecological Engineering

3 2024

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Efficacy of Compost and Vermicompost on Growth, Yield and Nutrient Content of Common Beans Crop (Phaseolus vulgaris L.)

100%

Al-Tawarah B. , Alasasfa M. A. , Mahadeen A. Y.

tom Vol. 25, nr 2

215--226

The experiment was conducted to study the effect of organic fertilization to the sustainability of agricultural systems by recycling nutrients and improving the physical properties of the soil; two important types of organic fertilizers, namely vermicompost and compost were tested to study their effect on soil and growth of common bean ‘Sybaris’. They were mixed in different proportions of with soil by varying ratio: (100% soil, 100% compost, 100% vermicompost, 75% soil + 25% compost, 50% soil + 50% compost, 25% soil + 75% compost, 75% soil + 25% vermicompost, 50% soil + 50% vermicompost, 25% soil + 75% vermicompost, soil 33% + compost 33% + vermicompost 33%). The study findings showed ability of these two types of organic fertilizers to enrich plant growth, development and yield characteristics compared to the control treatment, with superiority of vermicompost, and there was also a clear discrepancy related to the rate of addition. Most of the results referred to superiority of the higher application rates of these two fertilizers, especially in the case of vermicompost (VC100%). The later treatment recorded the highest values in terms of vegetative, root and yield components. The study concluded that cultivation of bean and addition of vermicompost with soil replacement rates ranging from 50% to 100% has a significant impact on the development, growth, and productivity of the common bean plant.

Defoliation of Autumn Planted Maize Hybrids for Sustainable Intensification of Maize-Soybean Intercropping System

88%

Khan H. Z. , Alasasfa M. A. , Iqbal A. , Naeem A. , Iqbal M. A.

Journal of Ecological Engineering

2024

tom Vol. 25, nr 9

34--43

In maize-soybean intercropping systems (ICS), the morphophysiological growth traits and grain yield of component crops (CC), especially of soybean suffer greatly, owing to the dominance of maize in acquiring growth resources and shading effect. Thus, a field trial was conducted entailing maize hybrids (H1=YH-1898 and H2=YH-5427) and defoliation treatments (R1=removal of top two leaves, R2=removal of top four leaves, R3=removal of top six leaves, and R4=no removal of leaves) for boosting soybean (cv. AARI-soybean) growth and yield in maize-soybean ICS. The response variables included plant height (PH), 1000 grains weight, grain yield (GY), and biological yield (BY) along with the physiological growth traits (leaf area index LAI, leaf area duration LAD, crop growth rate CGR, and net assimilation rate NAR) of CC. The H1 hybrid of maize outperformed the other hybrid by recording 8% and 9% higher PH and BY, respectively, while the H2 hybrid depicted 18% and 6% greater 1000 grain weight and GY, respectively, along with NAR. Additionally, R1 H2 exhibited the maximum LAI, LAD, and CGR at 30, 60, 90, and 110 days after sowing (DAS). Contrastingly, soybean recorded 11% higher PH in intercropping with the H1 hybrid under R4 defoliation treatment along with significantly higher 1000 grains weight (13%), GY (57%), BY (10%), and NAR (157%). Moreover, soybean exhibited the maximum physiological growth in response to the R4 H1 treatment combination. On the basis of the recorded findings, the H2 R1 treatment combination could be recommended for boosting maize yield, whereas H1 R4 or H1 R3 could be adopted to bolster the growth and productivity of soybean intercrop, but at the cost of a significant reduction in maize yield.

Harnessing the Mineral Fertilization Regimes for Bolstering Biomass Productivity and Nutritional Quality of Cowpea [Vigna unguiculata (L.) Walp]

63%

Iqbal A. , Abbas R. N. , Al Zoubi O. M. , Alasasfa M. A. , Rahim N. , Tarikuzzaman M. , Aydemir S. K. , Iqbal M. A.

Journal of Ecological Engineering

2024

tom Vol. 25, nr 7

340--351

To prevent environmental pollution, promote ecological restoration and impart production sustainability in biomass crops, optimization of mineral fertilization regimes is strategically required under changing climatic scenarios. There exist research gaps regarding optimal use of nitrogen (N), phosphorous (P) and potassium (K) fertilizers for the fertilizer-responsive cultivars of forage legumes like cowpea under decreasing soil fertility in semi-arid regions. Therefore, a multi-year field experiment was executed to study yield attributes, green and dry matter yields along with nutritional quality attributes of forage cowpea. The treatments were comprised of different N-P-K levels viz. F0=(0-0-0), F1=(150-0-0 kg·ha-1), F2=(150-100-0 kg·ha-1) and F3=(150-100-100 kg·ha-1). The findings revealed that F3 fertilization regime surpassed rest of treatments by recording the maximum plant population, plant height, leaf area index, plants fresh and dry weights, which led to the highest green forage yield (73% and 5.8% higher than control and following treatment of F2, respectively). For dry matter yield, all fertilization regimes performed better than control, however those were statistically at par to each other. Moreover, F3 treatment exhibited 4.4% and 1.6% higher crude protein and ether extractable fat respectively, compared to the following treatment of F2 treatment that remained at par with F3 for total ash content. Contrastingly, the control treatment remained superior by giving the minimum crude fiber content which could be attributed to dwarf plants produced in the absence of fertilizers because stem length tends to contribute the major portion of f iber content in cowpea. Thus, 150-100-100 kg·ha-1 N-P-K might be recommended to cowpea growers for boosting biomass productivity and nutritional quality, however further field investigations need to assess the impact of these fertilization regimes on biological N fixation process and solar radiation capture by cowpea plants under irrigated and dry semi-arid conditions.