Results 271 to 280 of about 156,634 (316)
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Estimating Crop Growth Rate with Land Treatment
Journal of Environmental Engineering, 1984A new and more comprehensive procedure for estimating crop growth rate is illustrated with data from the literature for coastal bermudagrass. Yield data are described by the Gaussian probability function. The effect of irrigation and harvest frequency is shown.
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Light and growth rate effects on crop and weed responses to nitrogen
Weed Science, 2004The nitrogen (N) response of competing plants may be affected by photosynthetically active radiation (PAR) availability and maximum potential growth rate, which determine N requirements. The responses of two crop (corn and soybean) and six weed species (common lambsquarters, common waterhemp, giant foxtail, velvetleaf, wild mustard, and woolly cupgrass)
Matthew M. Harbur, Micheal D. K. Owen
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A Comparison of Population Growth Rate and the Rate of Increase in Food Crop Production in Africa
2020Millions of people in Africa require sufficient food for healthy living. However, inefficient farming practices are making a lot more people hungry and poor. Simultaneously, the population keeps on increasing. The legitimate question that this study seeks to address is how the production capacity can meet the needs of the increasing population in the ...
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Relationship of Radiation, Leaf Area Index and Crop Growth-Rate
Nature, 1961SHADING experiments, such as those by Blackman and Templeman1 on white clover, have shown the great reduction in crop growth-rate which occurs when light intensity is curtailed. A second factor influencing crop growth-rate is the leaf area index. There is evidence2,3 that the rate of dry matter production by a crop or pasture will increase as the leaf ...
W. R. STERN, C. M. DONALD
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Soybean Seed Number and Crop Growth Rate during Flowering
Agronomy Journal, 1995AbstractSeeds per unit area is an important yield component in soybean [Glycine max (L.) Merrill]; however, the mechanisms regulating seed number are not well understood. Field and greenhouse experiments were conducted to investigate the relationship between photosynthesis during flowering and podset and seeds per square meter.
Hongfei Jiang, Dennis B. Egli
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Growth rate of paddy crop in 27 districts of Chhattisgarh state
International Journal of Advanced Biochemistry Research NoosphereThe present study is conducted with a view to analyze growth rate of paddy crop in 27 districts of Chhattisgarh. For the purpose of study secondary data of area, production and productivity of paddy crop in 27 districts of Chhattisgarh state was downloaded from Directorate of Economics and Statistic, Department of Agriculture Ministry and Farmer ...
Sandhya Kumari +4 more
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Relations of rice seeding rates to crop and weed growth in aerobic rice
Field Crops Research, 2011Aerobic rice describes a management adaptation to reduced irrigation water supplies but, due to reduced intervals of flooding in this system, this requires revised weed management approaches to reduce costs and provide effective weed control. One approach is to make the crop more competitive and reduce the effects of weeds on the crop by using higher ...
Chauhan, Bhagirath S. +3 more
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Growth Rates and Cropping Pattern Changes in Himanchal Pradesh's Agriculture
Economic Journal of Nepal, 1985Not Available.
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Evaluating Management Zone Optimal Nitrogen Rates with a Crop Growth Model
Agronomy Journal, 2006Determining MZ (management zone)‐specific optimal N rate is a challenge in precision crop management. The objective of this study was to evaluate the potential of applying a crop growth model to simulate corn (Zea mays L.) yield at various N levels in different MZs and estimate optimal N rates based on long‐term weather conditions.
Yuxin Miao +5 more
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A Dynamic Model of Crop Growth Rate of Italian Ryegrass after Cutting
Acta Agriculturae Scandinavica, 1973(1973). A Dynamic Model of Crop Growth Rate of Italian Ryegrass after Cutting. Acta Agriculturae Scandinavica: Vol. 23, No. 2, pp. 121-126.
Veli Pohjonen, Perth Harp
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