Water harvesting and soil moisture retention - chapter 7,8 pptx
Water harvesting and soil moisture retention - chapter 1,2 pot
... Water harvesting and soil moisture retention 6 1 Introduction: why water harvesting and soil moisture retention Water is one of the main requirements ... encourage infiltration and storage of rainwater (soil moisture retention or conservation). The advantages of water harvest-ing and moisture retention techniques in (semi-)arid areas may be summarized ... harvesting and soil moisture retention 4 Contents1 Introduction: why water harvesting and soil moisture retention 6 Part I: Water harvesting 9 2 The basic principles of water harvesting 9 2.1 Definition...
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Water harvesting and soil moisture retention - chapter 3,4 ppsx
... the Water harvesting and soil moisture retention 14 3.2 The water- soil system The objective of a water harvesting system is to harvest runoff. Runoff is produced in the water- soil system ... (mm/growing pe-riod) Sensitivity to drought Bean 95 - 110 300 - 500 medium - high Maize 125 - 180 500 - 800 medium - high Melon 120 - 160 400 - 600 medium - high Millet 105 - 140 450 - 650 low ... determine the ref-erence evapotranspiration, but for the design of water harvesting sys- Water harvesting and soil moisture retention 26 ciency factor ranges between 0.5 and 0.75. When measured...
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Water harvesting and soil moisture retention - chapter 5,6 potx
... Water harvesting and soil moisture retention 38 Figure 11: Contour ridges and furrows. Conditions Rainfall: 350 - 700 mm Soil: Good results on silty loam to clay loam soils. On heav-ier, ... contours) may come closer to- Water harvesting and soil moisture retention 52 Figure 20: Closed micro-catchment on sloping land. Figure 21: Closed micro-catchment on flat land. Conditions Rainfall: ... rehabilitat-ing barren, crusted soils and clay slopes, where infiltra-tion is limited and tillage is difficult. These soils are rock hard and usually generate a high amount of run-off. The soil...
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Water harvesting and soil moisture retention - chapter 7,8 pptx
... Water harvesting and soil moisture retention 70 8 Measures to improve infiltration and water storage Infiltration of water into a soil is improved by making the soil struc-ture looser and ... crops also suppress weed growth. Water harvesting and soil moisture retention 62 Part II: Soil moisture retention In this second part soil moisture retention techniques to be applied in ... with several con-tour guide lines. Water harvesting and soil moisture retention 76 8.4 Minimum-tillage and zero-tillage In some situations it may be better to confine soil tillage to...
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Water harvesting and soil moisture retention - chapter 9 pps
... 3). Soil moisture. Water held in the soil and available to plants through their root system, also called soil water. Soil moisture profile. The depth to which water infiltrates into the soil, ... more years and which normally flowers and fruits at least in its second and subsequent years. Water harvesting and soil moisture retention 92 Further readingAhenkora, Y., Owusu-Bennoah.E, ... pp. ISBN: 0-3 3 3-5 707 8-2 FAO. A manual for the Design and Construction of Water harvest-ing Schemes for Plant Production. (1991) FAO, Rome, Italy. FAO. Land -Water linkages in rural watersheds....
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Tài liệu LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-Pride and Prejudice -Jane Austen -Chapter 29 pptx
... not one -and- twenty.’ When the gentlemen had joined them, and tea was over, the card-tables were placed. Lady Catherine, Sir William, and Mr. and Mrs. Collins sat down to quadrille; and as ... carved, and ate, and praised with delighted alacrity; and every dish was commended, first by him and then by Sir William, who was now enough recovered to echo whatever his son-in-law said, in ... its beauties, and Lady Catherine kindly informing them that it was much better worth looking at in the summer. The dinner was exceedingly handsome, and there were all the servants and all the...
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Tài liệu LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-Pride and Prejudice -Jane Austen -Chapter 32 pptx
... Pride and Prejudice Jane Austen Chapter 32 Elizabeth was sitting by herself the next morning, and writing to Jane while Mrs. Collins and Maria were gone on business ... Catherine, and under that apprehension was putting away her half-finished letter that she might escape all impertinent questions, when the door opened, and, to her very great surprise, Mr. Darcy, and ... thinking of Jane and Netherfield, and she blushed as she answered: ‘I do not mean to say that a woman may not be settled too near her family. The far and the near must be relative, and depend on...
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Tài liệu LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-Pride and Prejudice -Jane Austen -Chapter 38 pptx
... her eyes open; and though evidently regretting that her visitors were to go, she did not seem to ask for compassion. Her home and her housekeeping, her parish and her poultry, and all their ... kindness he had Pride and Prejudice Jane Austen Chapter 38 On Saturday morning Elizabeth and Mr. Collins met for breakfast a few minutes before the others appeared; and he took the opportunity ... feel the received at Longbourn in the winter, and his compliments to Mr. and Mrs. Gardiner, though unknown. He then handed her in, Maria followed, and the door was on the point of being closed,...
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Tài liệu LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-Pride and Prejudice -Jane Austen -Chapter 1 pptx
... of quick parts, sarcastic humour, reserve, and caprice, that the experience of three -and- twenty years had been insufficient to make his wife understand his character. HER mind was less difficult ... do no such thing. Lizzy is not a bit better than the others; and I am sure she is not half so handsome as Jane, nor half so good-humoured as Lydia. But you are always giving HER the preference.’ ... visiting and news. ‘Why, my dear, you must know, Mrs. Long says that Netherfield is taken by a young man of large fortune from the north of England; that he came down on Monday in a chaise and...
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Tài liệu LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-Pride and Prejudice -Jane Austen -Chapter 5 pptx
... by his ill-treatment, for he is such a disagreeable man, that it would be quite a misfortune to be liked by him. Mrs. Long told me last night that he sat close to her for half-an-hour without ... particularly prone to it, and that there are very few of us who do not cherish a feeling of self-complacency on the score of some quality or other, real or imaginary. Vanity and pride are different ... talking to Mrs. Long,’ said Miss Lucas, ‘but I wish he had danced with Eliza.’ Pride and Prejudice Jane Austen Chapter 5 Within a short walk of Longbourn lived a family with whom the Bennets...
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