interaksi ekologis dalam manajemen agroekosistem
... INTERACTIONS BETWEEN COMPONENTS OF AGRO-ECOSYSTEMS ...
... INTERACTIONS BETWEEN COMPONENTS OF AGRO-ECOSYSTEMS ...
Discussion
... organisms. The larger the rhizosphere volume and microorganism biomass, the greater the quantity of soil mineral nitrogen converted. Rhizosphere volume and microorganism biomass are limited by access to simple carbohydrates (Curl and Truelove 1986). Healthy grass plants capture and fix carbon during ...
... organisms. The larger the rhizosphere volume and microorganism biomass, the greater the quantity of soil mineral nitrogen converted. Rhizosphere volume and microorganism biomass are limited by access to simple carbohydrates (Curl and Truelove 1986). Healthy grass plants capture and fix carbon during ...
Plant ectoparasitic nematodes prefer roots without their microbial
... We designed two experiments to study the choice behavior of the nematode T. ventralis. Experiment 1 was performed in Petri dishes on agar medium, allowing us to observe the nematode behavior in a non-destructive way. In this experiment, we examined the choice of T. ventralis between A. arenaria seed ...
... We designed two experiments to study the choice behavior of the nematode T. ventralis. Experiment 1 was performed in Petri dishes on agar medium, allowing us to observe the nematode behavior in a non-destructive way. In this experiment, we examined the choice of T. ventralis between A. arenaria seed ...
VALLEY VIEW UNIVERSITY 2008 Fertilisation with human urine in a nutshell_0
... will ensure that the nutrients are washed into the soil. On very dry soils, more nitrogen evaporates, and in the case of heavy rains, nutrients are washed away from the crops. Application. Fertilization with urine is most commonly preformed with water ...
... will ensure that the nutrients are washed into the soil. On very dry soils, more nitrogen evaporates, and in the case of heavy rains, nutrients are washed away from the crops. Application. Fertilization with urine is most commonly preformed with water ...
NEW SUPER STRENGTH ROUNDUP® READY TO USE GEL
... • Root kill can take up to 28 days, depending on the type of weed and the weather conditions. On stumps the effect might only be visible the following season when no re-growth occurs. WHEN TO USE: • Apply at any time when the weeds are green and growing and have adequate leaf area. • Treat establi ...
... • Root kill can take up to 28 days, depending on the type of weed and the weather conditions. On stumps the effect might only be visible the following season when no re-growth occurs. WHEN TO USE: • Apply at any time when the weeds are green and growing and have adequate leaf area. • Treat establi ...
POTASSIUM - Agronomy - K
... does not move readily in most soils. When potassium fertilizers are applied to medium- or fine-textured soils, it takes many years for K+ ions to move over an inch or two by natural processes. In these soils, potassium is considered an immobile nutrient. In very sandy soils, K+ is somewhat mobile an ...
... does not move readily in most soils. When potassium fertilizers are applied to medium- or fine-textured soils, it takes many years for K+ ions to move over an inch or two by natural processes. In these soils, potassium is considered an immobile nutrient. In very sandy soils, K+ is somewhat mobile an ...
Eastern States of India
... vital resource for rejuvenating the health of its soil so as to make it conducive to produce food items 3-4 fold more than the current production so that the region is positioned well to ...
... vital resource for rejuvenating the health of its soil so as to make it conducive to produce food items 3-4 fold more than the current production so that the region is positioned well to ...
Mycorrhizal fungal establishment in agricultural soils: factors
... establishment of viable microbial populations that can persist over multiple seasons. Here, we explore the factors responsible for establishment of the beneficial soil fungi, arbuscular mycorrhizal fungi (AMF), which can enhance the yield of a wide range of agricultural crops. We evaluate field appl ...
... establishment of viable microbial populations that can persist over multiple seasons. Here, we explore the factors responsible for establishment of the beneficial soil fungi, arbuscular mycorrhizal fungi (AMF), which can enhance the yield of a wide range of agricultural crops. We evaluate field appl ...
Living apart together Veen, Geertje Franciska
... well as changes in soil abiotic conditions. While direct associations between plants and root herbivores and pathogens can be highly species-specific (van der Putten et al. 1993), it is generally assumed that indirect interactions in the decomposer food web are less species-specific (Yeates et al. 1 ...
... well as changes in soil abiotic conditions. While direct associations between plants and root herbivores and pathogens can be highly species-specific (van der Putten et al. 1993), it is generally assumed that indirect interactions in the decomposer food web are less species-specific (Yeates et al. 1 ...
managing pulses to minimize frost damage
... paddocks provides flexibility and may help reduce economic loss. It is widely practiced with vetch. Pea, bean or lupin hay is also of excellent quality. Forage options are less suited to lentils and chickpeas. Pulses do not lose their hay quality as quickly after frost as cereals do, so there is mor ...
... paddocks provides flexibility and may help reduce economic loss. It is widely practiced with vetch. Pea, bean or lupin hay is also of excellent quality. Forage options are less suited to lentils and chickpeas. Pulses do not lose their hay quality as quickly after frost as cereals do, so there is mor ...
Leaf Litter bk - American Museum of Natural History
... called leaf litter. This layer of litter provides nesting material for birds and squirrels, hiding places for small woodland mice and salamanders, and protected spots for seeds to escape notice by hungry birds. It also enriches the soil and keeps it moist so new plant seedlings can grow. The leaf li ...
... called leaf litter. This layer of litter provides nesting material for birds and squirrels, hiding places for small woodland mice and salamanders, and protected spots for seeds to escape notice by hungry birds. It also enriches the soil and keeps it moist so new plant seedlings can grow. The leaf li ...
Functional and ecological consequences of saprotrophic fungus
... primary agents of plant litter decomposition and their hyphal networks, which grow throughout the soil–litter interface, represent highly dynamic channels through which nutrients are readily distributed. By ingesting hyphae and dispersing spores, soil invertebrates, including Arthropoda, Oligochaeta ...
... primary agents of plant litter decomposition and their hyphal networks, which grow throughout the soil–litter interface, represent highly dynamic channels through which nutrients are readily distributed. By ingesting hyphae and dispersing spores, soil invertebrates, including Arthropoda, Oligochaeta ...
Urea - International Plant Nutrition Institute
... a process called hydrolysis. During this process, the N in urea is susceptible to undesirable gaseous losses as NH3. Various management techniques can be used to minimize the loss of this valuable nutrient. Urea hydrolysis is a rapid process, typically occurring within several days after applicati ...
... a process called hydrolysis. During this process, the N in urea is susceptible to undesirable gaseous losses as NH3. Various management techniques can be used to minimize the loss of this valuable nutrient. Urea hydrolysis is a rapid process, typically occurring within several days after applicati ...
Earthworm biomass as additional information for risk
... Earthworm sampling was done on all sites with six replicates between September and November 2001 (13 sites), in April 2002 (2 sites) and between September and November 2002 (11 sites) according to the combined method of Bouché and Aliaga (1986). At the time of sampling, soil moisture content was at ...
... Earthworm sampling was done on all sites with six replicates between September and November 2001 (13 sites), in April 2002 (2 sites) and between September and November 2002 (11 sites) according to the combined method of Bouché and Aliaga (1986). At the time of sampling, soil moisture content was at ...
Spinach (Home Gardening Series) - FSA-6077
... frost. Young, tender stems and leaves can be harvested through the summer in most areas. Q. The foliage on my spinach plants ...
... frost. Young, tender stems and leaves can be harvested through the summer in most areas. Q. The foliage on my spinach plants ...
FEEDBACK IN THE PLANT-SOIL SYSTEM Joan G
... to explain community composition and community dynamics (33–35). Microbiologists have focused on the size, composition, and activity of the microbiota associated with plant roots as well as the role of plants in driving these variables. Plant scientists have focused on the mechanisms and functions o ...
... to explain community composition and community dynamics (33–35). Microbiologists have focused on the size, composition, and activity of the microbiota associated with plant roots as well as the role of plants in driving these variables. Plant scientists have focused on the mechanisms and functions o ...
Interactive comment on “Effect of charcoal amendments and a deep
... is widely grown on marginal lands for its leguminous nature. Page 4393 The difference between the treatment types 1 and 3 is not only the crop but also fertilization and tillage, which is fine because the treatments resemble common practice. However, as not only the crop but also fertilization and t ...
... is widely grown on marginal lands for its leguminous nature. Page 4393 The difference between the treatment types 1 and 3 is not only the crop but also fertilization and tillage, which is fine because the treatments resemble common practice. However, as not only the crop but also fertilization and t ...
Non-native invasive earthworms as agents of change in northern temperate forests REVIEWS
... litter into the soil and bring mineral soil from different depths to the surface, resulting in soil mixing that is very different from the mixing caused by epigeic or endogeic species (Figures 1 and 2). Not all species fall neatly into these standard categories, but classification is useful for diff ...
... litter into the soil and bring mineral soil from different depths to the surface, resulting in soil mixing that is very different from the mixing caused by epigeic or endogeic species (Figures 1 and 2). Not all species fall neatly into these standard categories, but classification is useful for diff ...
biochar - Everwood Farm
... Biochar and the sorption of heavy metals Biochar has been found to sorb a variety of heavy metals, including lead (Pb), arsenic (As) and cadmium (Cd). A dairy manure biochar made at 350°C sorbed several times more Pb than AC (Cao et al., 2009). In this case, sorption by biochar was attributed mostly ...
... Biochar and the sorption of heavy metals Biochar has been found to sorb a variety of heavy metals, including lead (Pb), arsenic (As) and cadmium (Cd). A dairy manure biochar made at 350°C sorbed several times more Pb than AC (Cao et al., 2009). In this case, sorption by biochar was attributed mostly ...
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... suitable methods for in-situ management of paddy straw and control of weed population. Out of the methods of planting, happy seeder is the most suitable method to reduce the cost of production and to manage the combine harvested paddy straw and ultimately to improve the soil health and productivity. ...
... suitable methods for in-situ management of paddy straw and control of weed population. Out of the methods of planting, happy seeder is the most suitable method to reduce the cost of production and to manage the combine harvested paddy straw and ultimately to improve the soil health and productivity. ...
u>n 5 H fTiyc - Wageningen UR E
... sensing material. Usewasmade of 1 : 500 000scale Landsat Tematic Mapper images taken during the months July/August 1985 and 1986. A 1 :500 000 scale map was drawn, showing landforms as interpreted from this satellite imagery. Inaddition to the rather outdated 1 :250 000scaletopographic sheets oftheS ...
... sensing material. Usewasmade of 1 : 500 000scale Landsat Tematic Mapper images taken during the months July/August 1985 and 1986. A 1 :500 000 scale map was drawn, showing landforms as interpreted from this satellite imagery. Inaddition to the rather outdated 1 :250 000scaletopographic sheets oftheS ...
Thiosulfate - International Plant Nutrition Institute
... sulfate. Thiosulfate is not generally available for plant uptake until it is converted to sulfate. In warm soils, this process is largely complete within one to two weeks. Thiosulfate is a chemical “reducing agent” and it also produces acidity after oxidation of the S. Due to these properties, thi ...
... sulfate. Thiosulfate is not generally available for plant uptake until it is converted to sulfate. In warm soils, this process is largely complete within one to two weeks. Thiosulfate is a chemical “reducing agent” and it also produces acidity after oxidation of the S. Due to these properties, thi ...
Effects of Grazing on the Roots and Rhizosphere
... According to Elberse and Berendse (1993), plant morphology and architecture seemed more relevant adaptations to habitats with contrasting nutrient supplies than plant allocation. As a consequence, it is important to understand the physiological response of the whole plant to grazing at the individua ...
... According to Elberse and Berendse (1993), plant morphology and architecture seemed more relevant adaptations to habitats with contrasting nutrient supplies than plant allocation. As a consequence, it is important to understand the physiological response of the whole plant to grazing at the individua ...
Soil type determines how root and rhizosphere traits relate
... et al. 2002). However, the quantitative contribution of microbial activity to P availability under field conditions is still debated (Richardson and Simpson 2011). Growing cereals accounts for more than half of world’s P fertilizer consumption, and maize takes a large part of this (Heffer 2009). For ...
... et al. 2002). However, the quantitative contribution of microbial activity to P availability under field conditions is still debated (Richardson and Simpson 2011). Growing cereals accounts for more than half of world’s P fertilizer consumption, and maize takes a large part of this (Heffer 2009). For ...
Insect population dynamics meets ecosystem ecology: effects of
... wound-induced increases in foliar phenolics (Findlay et al., 1996), root mortality (Ruess et al., 1998) and community-wide changes in the relative abundance of plant species or genotypes that vary in their litter quality (Pastor et al., 1993; Kielland et al., 1997; Uriarte, 2000). Fifth, herbivore-m ...
... wound-induced increases in foliar phenolics (Findlay et al., 1996), root mortality (Ruess et al., 1998) and community-wide changes in the relative abundance of plant species or genotypes that vary in their litter quality (Pastor et al., 1993; Kielland et al., 1997; Uriarte, 2000). Fifth, herbivore-m ...
Crop rotation
Crop rotation is the practice of growing a series of dissimilar/different types of crops in the same area in sequenced seasons.It also helps in reducing soil erosion and increases soil fertility and crop yield. Crop rotation gives various nutrients to the soil. A traditional element of crop rotation is the replenishment of nitrogen through the use of green manure in sequence with cereals and other crops. Crop rotation also mitigates the build-up of pathogens and pests that often occurs when one species is continuously cropped, and can also improve soil structure and fertility by alternating deep-rooted and shallow-rooted plants.Crop rotation is one component of polyculture.