Mycorrhizae and succession in plantings of beachgrass in sand dunes
... plant colonizers (Nicolson, 1960; Sylvia and Will, 1988; Harbor and PilgrimLake by wind-blownsand are longGemma and Koske, 1989, 1992; Koske and Gemma, standingproblemsin the area. ...
... plant colonizers (Nicolson, 1960; Sylvia and Will, 1988; Harbor and PilgrimLake by wind-blownsand are longGemma and Koske, 1989, 1992; Koske and Gemma, standingproblemsin the area. ...
POCKET GOPHERS Their Ecology and Management What do they look like?
... forced pocket gophers to leave their burrow system or drown. However, gophers often reinvade after flooding. Tilling: Studies have indicated that pocket gopher damage can be reduced by deeply tilling the soil and disrupting their burrow system. This method is recommended only for agricultural or sev ...
... forced pocket gophers to leave their burrow system or drown. However, gophers often reinvade after flooding. Tilling: Studies have indicated that pocket gopher damage can be reduced by deeply tilling the soil and disrupting their burrow system. This method is recommended only for agricultural or sev ...
Networks for Research Collaboration In the Dryland West Asia
... official soil P test for the regionusing a 0- to 20-cmsoil depth; about 6 mgkg-~ was consideredthe critical range belowwhich a responseto fertilizer is likely. Fertilizer P rates of 10 to 20 kg ha-~ were recommended, depending on the extent of deficiency. Althoughsimilar criteria have beendevelopedf ...
... official soil P test for the regionusing a 0- to 20-cmsoil depth; about 6 mgkg-~ was consideredthe critical range belowwhich a responseto fertilizer is likely. Fertilizer P rates of 10 to 20 kg ha-~ were recommended, depending on the extent of deficiency. Althoughsimilar criteria have beendevelopedf ...
Interactions between mesofauna and microorganisms
... positive feed-back loops are characterized by a reciprocal stimulation or synergy between two sub-systems. This concept, firstly used to describe ...
... positive feed-back loops are characterized by a reciprocal stimulation or synergy between two sub-systems. This concept, firstly used to describe ...
Investigating CH4 production in an oxic plant
... forests > managed forests > grasslands > crop fields). However, this does not exclude a simultaneous endogenic CH4 production in the plant-soil system, which cannot be detected simply via CH4 flux measurements. Methanogenic archaea producing CH4 under anoxic conditions were thought to be the only bi ...
... forests > managed forests > grasslands > crop fields). However, this does not exclude a simultaneous endogenic CH4 production in the plant-soil system, which cannot be detected simply via CH4 flux measurements. Methanogenic archaea producing CH4 under anoxic conditions were thought to be the only bi ...
Weathering and Erosion
... C. Physical Weathering - This process tends to be more pronounced along zones of weakness: e.g. bedding plane of sedimentary rocks, fractures called joints in igneous rocks (they form when rocks cool and contract). - Frost wedging is the most efficient mechanisms for widening cracks and break the r ...
... C. Physical Weathering - This process tends to be more pronounced along zones of weakness: e.g. bedding plane of sedimentary rocks, fractures called joints in igneous rocks (they form when rocks cool and contract). - Frost wedging is the most efficient mechanisms for widening cracks and break the r ...
The Biolog Plates Technique as a Tool in Ecological Studies of
... between microbial communities from various environments and habitats. The rate of colour development in wells provides information about density and/or metabolic activity of bacterial cells in an inoculum, while the diversity of colour development in wells about microbial diversity in soil solution ...
... between microbial communities from various environments and habitats. The rate of colour development in wells provides information about density and/or metabolic activity of bacterial cells in an inoculum, while the diversity of colour development in wells about microbial diversity in soil solution ...
Plant and soil characteristics affected by biofertilizers from rocks and
... materials on different economic crops and soils. However, the phosphorus- and potassium- bearing rocks contain no N, and thus, they do not supply N for improved plant development and yield. To produce a more complete biofertilizer, it is important to improve the N concentration of the organic matter ...
... materials on different economic crops and soils. However, the phosphorus- and potassium- bearing rocks contain no N, and thus, they do not supply N for improved plant development and yield. To produce a more complete biofertilizer, it is important to improve the N concentration of the organic matter ...
The Condition of Uncaria Gambir Roxb. as One of
... moderate on the top layer of soil, while it was very low in the lower layer of soil (Table 1), which means that solubility of Al is at a level which does not harm (not cause toxic/inhibitor) for the growth and production of Gambier plant in study area in Pakpak Bharat, North Sumatra. The higher of I ...
... moderate on the top layer of soil, while it was very low in the lower layer of soil (Table 1), which means that solubility of Al is at a level which does not harm (not cause toxic/inhibitor) for the growth and production of Gambier plant in study area in Pakpak Bharat, North Sumatra. The higher of I ...
Part 3: Spreading on Frozen and Snow-covered Ground
... the nutrients available for the next crop, improve soil quality, and prevent manure nutrient and contaminant loss to the environment. Extra precaution and care are needed in winter spreading because the fate of manure on frozen and snow-covered ground is not predictable. It is unpredictable because ...
... the nutrients available for the next crop, improve soil quality, and prevent manure nutrient and contaminant loss to the environment. Extra precaution and care are needed in winter spreading because the fate of manure on frozen and snow-covered ground is not predictable. It is unpredictable because ...
Community-weighted mean traits but not functional
... 2015; Wang et al., 2016). Hence, it is imperative that we examine the changes in vegetation and soil and the relationships between them during this process of wetland drying for prediction and conservation efforts. Previous studies have suggested that there may be a secondary successional change fro ...
... 2015; Wang et al., 2016). Hence, it is imperative that we examine the changes in vegetation and soil and the relationships between them during this process of wetland drying for prediction and conservation efforts. Previous studies have suggested that there may be a secondary successional change fro ...
Accumulation of heavy metals in fibre crops flax, cotton and hemp
... Variability of cadmium, lead, and zinc tolerance and accumulation among and between germplasms of the fiber crop Boehmeria nivea with different root-types B Yang, M Zhou, LL Zhou, ND Xue, SL Zhang… - … Science and Pollution …, 2015 Springer Abstract Crop germplasms substantially vary in their tolera ...
... Variability of cadmium, lead, and zinc tolerance and accumulation among and between germplasms of the fiber crop Boehmeria nivea with different root-types B Yang, M Zhou, LL Zhou, ND Xue, SL Zhang… - … Science and Pollution …, 2015 Springer Abstract Crop germplasms substantially vary in their tolera ...
Fertilizer Value of Manure from Livestock Operations
... crops. Heavy applications of manure also can cause excess accumulation of soluble salts in the soil, especially in some of eastern Oregon's arid regions where little or no leaching occurs. High salt content in soil can impair soil structure and decrease water movement rates, inhibiting plant growth. ...
... crops. Heavy applications of manure also can cause excess accumulation of soluble salts in the soil, especially in some of eastern Oregon's arid regions where little or no leaching occurs. High salt content in soil can impair soil structure and decrease water movement rates, inhibiting plant growth. ...
No Slide Title - School of Electrical Engineering and Computer
... Some people get around the problem of nitrogen loss by adding bloodmeal to the soil before they bury the compost materials. Composting is really quite simple, inexpensive, ecologically sound, and utterly failproof - no matter what you do, your pile wile eventually rot into soil-enriching compost! Wh ...
... Some people get around the problem of nitrogen loss by adding bloodmeal to the soil before they bury the compost materials. Composting is really quite simple, inexpensive, ecologically sound, and utterly failproof - no matter what you do, your pile wile eventually rot into soil-enriching compost! Wh ...
minimum requirements for permanent / single st~ey houses
... destroying the floor or other parts of the house. TroubLesome amounts of moisture, from a health and comfort point of view, shall not penetrate the floor. ...
... destroying the floor or other parts of the house. TroubLesome amounts of moisture, from a health and comfort point of view, shall not penetrate the floor. ...
effect of wheat residue incorporation along with n starter dose on
... potential which is much higher than the national average paddy yield. Hence there is an urgent need to develop a technology which can fulfill crop production and better ...
... potential which is much higher than the national average paddy yield. Hence there is an urgent need to develop a technology which can fulfill crop production and better ...
Maintaining Turfgrass PowerPoint
... Turfgrass should be treated when soil moisture is adequate and weeds are actively growing. The weeds are most vulnerable under these conditions. An exception to this is the use of preemergent herbicides, which prevent the germination of weed seeds. Such herbicides are commonly used to control cr ...
... Turfgrass should be treated when soil moisture is adequate and weeds are actively growing. The weeds are most vulnerable under these conditions. An exception to this is the use of preemergent herbicides, which prevent the germination of weed seeds. Such herbicides are commonly used to control cr ...
Saline Seep Management in North
... salts and gravel in the soil profile will decrease water storage capacity, while organic matter and good soil structure will increase it (Fasching 2001). Estimates of soil water storage capacity are as high as 1 inch additional plant available water per acre for each 1% of organic matter added depen ...
... salts and gravel in the soil profile will decrease water storage capacity, while organic matter and good soil structure will increase it (Fasching 2001). Estimates of soil water storage capacity are as high as 1 inch additional plant available water per acre for each 1% of organic matter added depen ...
Tillage
Tillage is the agricultural preparation of soil by mechanical agitation of various types, such as digging, stirring, and overturning. Examples of human-powered tilling methods using hand tools include shovelling, picking, mattock work, hoeing, and raking. Examples of draft-animal-powered or mechanized work include ploughing (overturning with moldboards or chiseling with chisel shanks), rototilling, rolling with cultipackers or other rollers, harrowing, and cultivating with cultivator shanks (teeth). Small-scale gardening and farming, for household food production or small business production, tends to use the smaller-scale methods above, whereas medium- to large-scale farming tends to use the larger-scale methods. There is a fluid continuum, however. Any type of gardening or farming, but especially larger-scale commercial types, may also use low-till or no-till methods as well.Tillage is often classified into two types, primary and secondary. There is no strict boundary between them so much as a loose distinction between tillage that is deeper and more thorough (primary) and tillage that is shallower and sometimes more selective of location (secondary). Primary tillage such as ploughing tends to produce a rough surface finish, whereas secondary tillage tends to produce a smoother surface finish, such as that required to make a good seedbed for many crops. Harrowing and rototilling often combine primary and secondary tillage into one operation.""Tillage"" can also mean the land that is tilled. The word ""cultivation"" has several senses that overlap substantially with those of ""tillage"". In a general context, both can refer to agriculture. Within agriculture, both can refer to any of the kinds of soil agitation described above. Additionally, ""cultivation"" or ""cultivating"" may refer to an even narrower sense of shallow, selective secondary tillage of row crop fields that kills weeds while sparing the crop plants.