Water harvesting and soil moisture retention - chapter 7,8 pptx

... 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 summa...

Ngày tải lên: 04/07/2014, 02:20

... 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...

Ngày tải lên: 04/07/2014, 02:20

... 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-catchme...

Ngày tải lên: 04/07/2014, 02:20

... 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 moistu...

Ngày tải lên: 04/07/2014, 02:20

... 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 read...

Ngày tải lên: 04/07/2014, 02:20

... 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-l...

Ngày tải lên: 15/12/2013, 04:15

... 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 ......

Ngày tải lên: 15/12/2013, 04:15

... 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...

Ngày tải lên: 24/12/2013, 12:16

... 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 prefe...

Ngày tải lên: 21/01/2014, 18:20

... 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 d...

Ngày tải lên: 21/01/2014, 18:20