人教版高一英语下讲解14

[14:44.58]He collected information,studied it,
[14:49.03]did experiments and learnt from the experiences of farmers.
[14:55.50]Around 540 AD,he wrote a book called Qimin Yaoshu.
[15:01.75]The book is about both farming and gardening.
[15:06.32]It includes advice on the following subjects:
[15:11.18]growing green vegetables and fruit trees,keeping cows,sheep and fish in lakes.
[15:19.12]There are also instructions for making wine.
[15:23.38]For centuries after Jia Sixie died,
[15:29.33]his book was studided by Chinese farmers and students of farming.
[15:35.50]Jia Sixie's book is a practical guide to farming.
[15:40.77]Firstly,as a farmer you should do things at the right time of the year.
[15:47.30]If you sow seeds and grow young plants in the fields at the correct time of the year,
[15:54.44]your work will be less and the results will be better.
[15:59.61]But if you go against nature and do things at the wrong time of year,
[16:05.67]you will have to do more work and the results will not be so good.
[16:11.42]The condition of the soil is also very important.
[16:16.40]Examine the soil on your farm carefully.
[16:20.85]If the condition of your soil is not good,you should improve it.
[16:26.59]Before sowing or planting crops,
[16:30.72]rough ground must be cleaned and weeds removed.
[16:36.18]Let sheep or cows walk on the land.
[16:40.93]The animals will destroy the weeds or eat them.
[16:45.51]The land should also be ploughed,so weeds are destroyed.
[16:51.15]When you plough the soil,
[16:54.49]plough deep the first time and less deep the second time.
[16:59.74]So the autumn ploughing should be deeper than the spring ploughing.
[17:05.02]The best harvest is reached when farmers change the crops in their fields.
[17:11.86]For example,do not plant rice year after year in the same field.
[17:18.24]But if you plant rice in a field one year and wheat in the field the next year,
[17:25.19]you will harvest good crops.
[17:28.84]Other scientists said that wheat should be planted with space between the plants,
[17:35.92]but Jia did experiments and showed that planting wheat close together is better.
[17:42.58]He also said that it is good to grow different pants
[17:48.15]next to each other in the same field.