1 edition of Optimizing the soil physical environment toward greater crop yields. found in the catalog.
Optimizing the soil physical environment toward greater crop yields.
|Contributions||Hillel, Daniel, International Symposium on Soil-Water Physics and Technology, Hebrew University, 1971|
|LC Classifications||S592.3 O68 1972|
|The Physical Object|
|Number of Pages||240|
In ‘Handbook of soil conditioners: substances that enhance the physical properties of soil’. (Eds A Wallace, RE Terry) pp. – (Marcel Dekker Inc.: New York) De Boodt M () Improvement of soil structure by chemical means. In ‘Optimising the soil physical environment towards greater crop yields’. (Ed. D Hillel) pp. 43– 1. Introduction  Irrigation water demands depend on farmers' decisions on when and which crops to produce, how much water to apply, and which irrigation technologies to use. Decisions involve short‐ and long‐term commitment of resources. Short‐term decisions can respond directly to particular water availability events either to minimize losses in dry years or to take advantage of.
When it comes to the end, making a good soil is more important for the crop production. By adjusting your soils pH, texture and fertility to your liking plants, you can create the good soil. Your plants will find what your pH of soils should be. Even the organic matter will definitely enhance the soil for a long. nutrients. Soil tests measure the quantity of a nutrient that is extracted from a soil by a particular extractant. The measured quantity of extractable nutrient in soil is fertilizer, manure and any other amendments. As soil test levels increase for a particular nutrient, the expected crop yield response to additions of that nutrient decreases.
Legume cover crops contribute N to a subsequent crop, relieving the farmer of some of the cost of buying fertilizer. Legumes can supply much of the N required for many summer crops, from row crops such as corn or grain sorghum to vegetables such as sweet corn, cabbage, squash, and pumpkins ().In Figure 2, maximum yield was attained with both lb fertilizer N/acre and with 54 lb . Overcoming soil nutrient constraints to crop production in West Africa: Optimizing the use of water and nitrogen through soil and crop management. Effect of residue management practices on the soil physical environment, microclimate and growth.
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Description Optimizing the Soil Physical Environment Toward Greater Crop Yields contains the proceedings of an invitational panel convened during the International Symposium on Soil-Water Physics and Technology held at The Hebrew University Faculty of Agriculture in Rehovot, Israel, August 29 to September 5, Criteria for determining the aims and directions of research in soil physics and technology --Efficient management of water in agriculture --Soil temperature and crop growth --Improving the water properties of sand soil --Improvement of soil structure by chemical means --Root development in relation to soil physical conditions --The field water.
Cary, John W. () BOOK REVIEW: Daniel Hillel (Ed.), "Optimizing the Soil Physical Environment Toward Greater Crop Yields".Cited by: 2. Optimizing the Soil Physical Environment Toward Greater Crop Yields.
Daniel Hillel, edAuthor: John W. Cary. Optimizing the soil physical environment toward greater crop yields. New York, Academic Press. Hillel, D. The efficient use of water in irrigation: principles and practices for improving irrigation in arid and semi-arid regions.
Tech. Paper. Washington, DC, World Bank. Hillel, D. & Guron, Y. Evapotrans-piration and the yield. Soil Science– Cook DF, Nelson SD () Effect of seedling emergence in crust forming soils. Soil Science– De Boodt M () Improvement of soil structure by chemical means.
‘Optimizing the soil physical environment toward greater crop yields’. (Ed. D Hillel) pp. 43– (Academic Press: New York).
property and its management is of utmost importance for optimizing crop nutrition on both a short-term and a long-term basis to achieve sustainable crop production. Soil productivity is the ability of a soil to support crop production determined by the entire spectrum of its physical, chemical and biological attributes.
Soil. Shaping an optimal soil, utilizing the plasticity of root system architecture, and the diversity of physical and biochemical interactions between roots and soils might provide us with a novel opportunity to improve soils for agricultural production, increase crop yields, and provide food security in a sustainable manner (see Outstanding Questions).
Most inquiries could be put off by a recitation of generalities such as a loam soil having intermediate bulk density, good aggregation, good infiltration rate, and no impedance to drainage represented a soil with good physical conditions, and good production could be expected on such soil if.
The crop yield is related to several factors, among these, soil tillage, soil compaction and crop rotation. This study aimed to evaluate the winter cover crops and crop rotation influence on soil physical properties and grain yield of dry beans, maize and soybean for two growing seasons.
Three experiments were conducted, corresponding to dry beans, maize and soybean crops. China and other rapidly developing economies face the dual challenge of substantially increasing yields of cereal grains while at the same time reducing the very substantial environmental impacts of intensive agriculture.
We used a model-driven integrated soil–crop system management approach to develop a maize production system that achieved mean maize yields of t ha−1 on. Moran et al. (), however, in a study of a soil in a wet-and-dry environment, show that a soil treated with minimum tillage had more pores, identified directly by image analysis, and higher hydraulic conductivity, measured in the field, than did a similar soil traditionally cultivated (Figure 14).
Figure 14 also illustrates the impact of. RELATIONSHIPS BETWEEN SOIL PHYSICAL PROPERTIES AND CROP YIELDS IN DIFFERENT CROPPING SYSTEMS IN SOUTHERN CAMEROON Dissertation Submitted in fulfilment of the requirements for the degree “Doktor der Agrarwissenschaften” ( / Ph.D.
in. Soil organic matter and clay particles hold large stores of plant nutrients. These reservoirs, however, are not all available to the crop. In an organic crop rotation, the grower manages soil organic matter and nutrient availability by incorporating different crop residues, cycling among crops with different nutrient needs, using cover crops, and adding organic soil amendments.
Yields from the Broadbalk wheat experiment, begun inare a good example of this (figure 1): the efficient use of fertilizers and lime, combined with new varieties of wheat and the effective use of crop protection chemicals, has increased grain yields on the experiment from 3 t ha −1 at best to approximately 10 t ha −1 today, with a.
However, the bulk density of soil in HA and HC was lower than that of RM, and soil physical structure became better by the comparison with the soil in RM after five years' intercropping (Jiang et.
In the past, soil productivity was the primary value attached to soils and crop yield reductions were the primary measure used to assess the significance of soil degradation.
In the long-term, however, soil management goals need to be broadened to include the roles that soils play in regulating water flow through watersheds and buffering.
The benefits of healthy soil in sustaining crop production are most evident when growing conditions are less than ideal. Healthy soils increase the capacity of crops to withstand weather variability, including short term extreme precipitation events and intra-seasonal drought.
The extreme drought in resulted in variable yield reduction to corn and soybean production in Iowa with the.
A series of measurements was begun in to assess selected soil physical and biological properties in a variety of cropping and management systems.
Measurements include bulk density, soil compaction, soil organic matter, and aggregate stability. Biological measurements began in Information on the effect of long-term management on soil nutrients and chemical properties is scanty.
We examined the year effect of tillage frequency and cropping sequence combination on dryland soil Olsen-P, K, Ca, Mg, Na, SO 4 –S, and Zn concentrations, pH, electrical conductivity (EC), and cation exchange capacity (CEC) at the 0– cm depth and annualized crop yield. A soil test is important for several reasons: to optimize crop production, to protect the environment from contamination by runoff and leaching of excess fertilizers, to aid in the diagnosis of plant culture problems, to improve the nutritional balance of the growing media and to save money and conserve energy by applying only the amount of.The rate of yield increase is much greater regardless of topsoil thickness compared with till-derived soils.
This increase can be attributed to better soil conditions under loess-derived soils for high water and nutrient availability compared with till-derived soils. The addition of N fertilizer to soil greatly increases yield.ZONE SOIL SURFACE VADOSE ZONE CROPS STREAM GROUNDWATER SOILS: Soils are extremely complex, hence we often simplify to study and understand soil physical principles, e.g., • soil particles are spherical • soil pores are composed of capillary tubes • soil is homogeneous soil particles soil gas soil water SOIL SOLID PHASE IS CHARACTERIZED BY.