Life Sciences Commons^™

Effects Of Nitrogen Fertilization And Bioenergy Crop Type On Topsoil Organic Carbon And Total Nitrogen Contents In Middle Tennessee Usa, Jianwei Li, Siyang Jian, Chad S. Lane, Yuehan Lu, Xiaorui He, Gangsheng Wang, Melanie A. Mayes, Kudjo E. Dzantor, Dafeng Hui

Agricultural and Environmental Sciences Faculty Research

Nitrogen (N) fertilization affects bioenergy crop growth and productivity and consequently carbon (C) and N contents in soil, it however remains unclear whether N fertilization and crop type individually or interactively influence soil organic carbon (SOC) and total N (TN). In a three-year long fertilization experiment in switchgrass (SG: Panicum virgatum L.) and gamagrass (GG: Tripsacum dactyloides L.) croplands in Middle Tennessee USA, soil samples (0–15cm) were collected in plots with no N input (NN), low N input (LN: 84 kg N ha-1 yr-1 in urea) and high N input (HN: 168 kg N ha-1 yr-1 in urea). Besides SOC …

Managing Swine Manure In Double-Crop Soybean, Donald Joseph Graper

Open Access Theses

Animal production, especially swine (Sus scrofa domesticus ) and poultry, has increased in the United States prompting the need to manage the larger volume of manure beyond land applications to supply nitrogen (N) for corn (Zea mays ) production. Applying swine manure to soybean (Glycine max ) has been shown to increase grain yield due to N supply. The goal of this research was to determine if swine manure applications to double-crop soybean following wheat can limit manure N loading to the soil by extending management options, increase soybean biomass and grain production, and increase N removal …

Growing Chinese Cabbage In Western Australia, John Burt, Dennis Phillips, David Gatter

Bulletins 4000 -

Chinese cabbage is a member of the Brassiceae family, which may be called brassicas, crucifers or cole crops. This includes various crops such as broccoli, Brussels sprouts, cauliflower, cabbage, radish, turnips, swedes and weeds such as wild radish.

In general trade, the term Chinese cabbage can loosely be given to both the heading types (Brasssica rapa L. subsp. pekinensis) and to non heading types such as pak-choi (Brassica rapa L. subsp. chinensis). This Bulletin deals with the heading type of Chinese cabbage. The Chinese name is Wong Bok, and this name is often used in Australia.

Zone Management In Precision Agriculture By Matching Fertiliser Input To Crop Demand, Daya Patabendige, Mike Wong, Bill Bowden

Bulletins 4000 -

Growers in Western Australia who have been yield mapping since the mid 1990s have come to realise that grain yield varies across different zones of their paddocks in any given year, as well as between years depending on the seasonal conditions and crop type. This within paddock variation can be as much as tenfold. Higher yielding areas can be due to better growing conditions (which increases the demand for nutrients) and/or better nutrient supply (which reduces the need for some fertiliser inputs). Hence, it is essential to determine the cause of the variation before optimum fertilising strategies can be developed.

Organic Wheat : A Production Guide, Steven Mccoy

Bulletins 4000 -

Many people believe that organic agriculture systems can only work in high rainfall regions. However, some of Australia’s most successful organic farmers are the experienced organic wheatbelt growers who produce cereal, pulse and oilseed crops in different regions and soil types across the country.

Wheat is the major organic cereal crop grown in Australia - predominantly noodle and breadmaking wheats for export markets.

Farming systems developed by modern organic wheat growers can differ significantly in concept, strategies and techniques from those used by conventional growers. Successful conversion to organic requires careful planning and integration of the whole farming system over …

Profitable Canola Production In The Northern Grainbelt Of Western Australia 2001, Paul Carmody, Adrian Cox

Bulletins 4000 -

Canola is a member of the Brassicaceae family that also includes mustard, turnip, wild radish, cauliflower, cabbage and broccoli.

It is a winter growing oilseed that can be produced in most arable areas of Australia where winter crops are currently grown. Originally known as rapeseed using the varieties B. campestris, the varieties of B. napus have almost completely replaced this earlier variety in all the areas where the crop is grown.

The swing to B. napus varieties was due to their superior yields, resistance to blackleg and better quality oil and meal. Canola can be grown on a wide variety …

Mango Growing In Western Australia, P R. Johnson, D C. Parr

Bulletins 4000 -

This bulletin covers mango growing in Western Australia in Kununurra, Carnarvon, Kimberly, Gingin, Perth regions. Details include climate requirements, soils, propagation, planting, spacing, weed control, nutrition, pests, diseases and disorders, pruning, harvesting and packing, ripening and storage, and processing.

Evaluation Of 4 Small Doses Of Fertilizer In Growing Maize (Zea Mays L.) In Two Communities Of San Juan Ermita, Chiquimula, Victor Estuardo Villalta Garcia

Theses and Dissertations

Corral de Piedra and Salitron are two communities located in the municipality of San Juan Ermita, which is in the department of Chiquimula, Guatemala. In both communities, the land has very sloped topography with slope grades ranging from 12 to 55%. Agriculture is the main production activity with corn (Zea mays L.) and beans (Phaseolus vulgaris) being the crops of greatest economic importance. These crops are planted through a system of sequential association commonly called relay. First, corn is planted at the beginning of the rainy season (May or June). Once it has completed its reproductive cycle, beans are planted …

Irrigation And Fertilizer Management For Horticultural Crops On The Swan Coastal Plain, I R. Mcpharlin, Greg Luke

Journal of the Department of Agriculture, Western Australia, Series 4

The Swan Coastal Plain is an important area for the production of vegetables, flowers and fruits in Western Australia. The yellow Cottesloe, Karrakatta and the white-grey Bassendean Sands upon which most of this production is based are infertile in their natural state and require large inputs of fertilizer for succesful production of horticultural crops.

Improved irrigation and fertilizer management will be needed to reduce nutrient leaching from horticultural crops on the coastal plain. This will probably involve applying fertilizer and water more frequently, but in smaller quantaties thaan currently practiced. The result should more closely match water and fertilizer supply …

Improved Fertilizing Practices On The Peel-Harvey Catchment, P T. Arkell

Journal of the Department of Agriculture, Western Australia, Series 4

Broad-acre farmers in the Peel-Harvey catchment have met a challange and achieved a great deal since the fertilizer extension programme started in 1983.

The main objective of the extension programme has been to ensure that every year three-quarters of the farmers make economically and technically sound fertilizer decisions, thus causing a minimum amount of phosphorus to enter the waterways of the Peel-Harvey estuarine system.

Modifying Fertiliser Practices, J S. Yeates, D. M. Deeley, M. F. Clarke, D. Allen

Journal of the Department of Agriculture, Western Australia, Series 4

If modified fertiliser practices are adopted phosphorus losses from the Peel-Harvey catchment can be reduced. Farmers can save money on fertiliser applications and the need for more expensive catchment management measures to reduce algal pollution of the estuary will be avoided.

Research data available so far indicate that, with farmer co-operation and the use of the new slow release fertiliser New Coastal Superphosphate, long-term phosphorus application rates can be reduced by 30-40 per cent - and possibly even halved - without lowering agricultural production. This will also reduce phosphorus loss to drainage water.

Although much of the research since 1982 …

B753: The Uptake Of Nutrients By Katahdin Potatoes As Influenced By Soil Moisture Regimes And Rates Of Fertilization, Gurbachan Singh Kalra, Roland A. Struchtemeyer

Bulletins

In Aroostook County, Maine, where the annual average rainfall is 35-40 inches, it is generalized by many that moisture is not a limiting factor in potato production. Weather data for Aroostook do, however, show frequent periods of low rainfall during the growing season, and these periods do cause temporary moisture deficiencies in the crop. Struchtemeyer, based on irrigation research in Maine, showed that the potato plant needs approximately 1 inch of water per week during the growing season. From the 1936 to 1955 Maine Weather Records, Pullen and Schrumpf (23) found that about 70 percent of the time, less than …

Soil And Plant Analysis : A Guide To Fertilizer Usage, Walter Jacob Cox

Journal of the Department of Agriculture, Western Australia, Series 4

Soil and plant analysis can be used to identify problems in soils, diagnose nutrient deficiencies and as a guide to fertiliser usage.

Soil testing is particularily useful where large amounts of phosphorus and potassium are leached or removed from the paddock in hay or silage.

Actual rates of fertiliser can only be recommended from soil testing and only in conjunction with additional biological and economic information.

Fertilising Quota Wheat Crops, N J. Halse

Journal of the Department of Agriculture, Western Australia, Series 4

BEFORE wheat quotas were introduced, a farmer had to make two major decisions on fertilisers for wheat crops each year—what area to crop; and how much fertiliser to use.

A Comparison Of Methods Of Urea Application At Ajana, M G. Mason, R. J. Parkin, H. Patrick

Journal of the Department of Agriculture, Western Australia, Series 4

Compared with urea application separate from the seed, urea mixed with wheat seed delayed and reduced wheat germination, and reduced wheat yields, especially at high rates of urea.

Yields were higher where the urea was topdressed immediately before seeding than where it was top-dressed either immediately after, or two weeks after seeding.

West Midlands Development : Fertilizers For The West Midlands, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

FARMING the light lands of the West Midland area would be impossible without fertilisers.

Most light land areas are inherently very low in phosphate and also require nitrogen.

The nitrogen can come from fertiliser for cereal crops, or can be built up by growing appropriate legume pasture plants such as clovers and lupins.

Fertilisers For The Wheatbelt, William John Toms

Journal of the Department of Agriculture, Western Australia, Series 4

A review of fertiliser research findings and recommendations for fertiliser applications to crops and pastures in the 12 to 15 inch rainfall areas.

NOT long ago, fertiliser to the cereal grower meant only superphosphate for cropping. Today, phosphorus, sulphur, nitrogen, copper, zinc and molybdenum are all important, and the needs of improved pastures must be considered as well as those of cereals.

What Is Good Agricultural Limestone?, George D. Corder

Agronomy Notes

During the 10-year period, 1955- 64, Kentucky farmers used more than 14 million tons of agricultural limestone. The investment in the limestone plus hauling and spreading was in the neighborhood of $45 million. In 1964 alone. Kentucky farmers invested about $7 million in about 2 million tons of limestone.

Agricultural Limestone In Kentucky, George D. Corder

Agronomy Notes

Kentucky farmers invested about $6 million in agricultural limestone in 1964. However, much more lime than this should have been used if farmers get the most economical crop production and the most efficient use of fertilizers that are applied or the fertility that is already in the soil.

Topdress Alfalfa This Fall, George D. Corder

Agronomy Notes

Good stands of alfalfa should be fertilized even though the alfalfa weevil is causing some concern. This fall, say after the last harvest, is a good time to topdress with phosphate, potash and boron fertilizers.

Different Soils Need Different Amounts Of Limestone, George D. Corder

Agronomy Notes

Two different soil types may show the same acidity levels by soil test but they may need different amounts of limestone to obtain the same reduction in soil acidity.

Use Of Phosphate Fertilizers And Bedding To Preserve Manures, George D. Corder

Agronomy Notes

Superphosphate fertilizers added to farm manures as they accumulate in barns, feed lots, and loafing areas will reduce the loss of nitrogen as gaseous ammonia.

Fertilizer-Insecticide Mixtures On Corn, R. L. Miller, George D. Corder

Agronomy Notes

Soil fertility and insects are major factors that affect corn yields. The proper kinds and amounts of fertilizers and insecticides properly placed will make corn production more economical on fields where either or both are needed.

Agronomy Notes, No. 6, Harold F. Miller, George D. Corder

Agronomy Notes

This fall is an ideal time to apply needed agricultural limestone. Spreading equipment can get over the dry ground with less soil compaction, and limestone applied now can correct soil acidity during the winter months.

List Of Registered Fertilisers For 1962, H G. Cariss

Journal of the Department of Agriculture, Western Australia, Series 4

IN accordance with the provisions of the Fertilisers Act, 1928-1955, it is required that—with the exception of bulk sales to a manufacturer and those made in accordance with a buyer's written prescription—all fertilisers sold must be registered annually.

The registration year is from November 1 to October 31 in the following year. The list of fertilisers registered for the year commencing November 1, 1961, is set out in the following tables.

Yields In Different Cropping Systems And Fertilizer Tests Under Stubble Mulching And Plowing In Eastern Nebraska, F. L. Duley

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

The material in this report will be confined chiefly to studies on crop production with stubble-mulching compared with plowing. Major cash crops have been studied in different rotations including legumes and non-legume crops. In all tests, plowing has been compared with subsurface tillage. Different types of equipment have been devised and tested for the various operations during the course of these studies.

The Effect Of Soil Moisture And Fertilizers On Seed Germination, Stephen Dubetz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Failure of viable seeds to germinate results in poor stands and often in lower yields. Some of the more important factors that affect germination of seed are temperature, moisture, aeration, and alkalinity.

Planting of speciality crops under irrigation in southern Alberta, Canada, usually is done when temperature is favourable to germination. However, soil moisture, especially in the seed zone, may not always be adequate - a situation brought about, in part, by the strong winds that prevail in this area. Results at the Experimental Farm, Lethbridge, Alberta, show that irrigated crops respond to phosphorus and nitrogen. During the past six …