Soil and water conservation protective cultivation is an advanced cultivation technology that avoid cultivation or few cultivation on farmland and with stubble cover.Protective cultivation technology is an integration technology that use stubble cover,no-tillage cultivation,deep-plough with machine,and weeding with chemistry.Adopting soil and water conservation protective cultivation can reduce the loss of soil and water in northeast blackland area and improve the soil anti-erodibility.

中文摘要：水土保持保護性耕作是對農(nóng)田實行免耕少耕在线视频伦，并用農(nóng)作物秸稈殘茬覆蓋地表的一項先進耕作技術(shù)www.黄色网站.com，保護性耕作技術(shù)是由秸稈覆蓋5060网午夜一级毛片免费视频、免耕播種日韩精品黄色在线免费观看、機械深松和化學除草等核心技術(shù)組成的一項集成技術(shù)色色色色色色色色色色网，采用水土保持保護性耕作措施可以有效減少東北黑土區(qū)的水土流失激情欧美老妇视频，提高黑土區(qū)土壤抗蝕性。

The agriculture soils of Baimahu ,Lushan and Zoujiao are the typical cases in the suburbs of Changde. Rice soil and vegetable plot are the two typical agriculture soils, we collected 6 samples according to the scientific method in these three areas. After air dry, contuse, screen and make soil samples, we tested their 9 indexs of PH, organic-substance, total phosphorus, quick-acting phosphorus. Then analysed the fertility condition of these areas. Then apply feasible suggestion of fertilizer after putting forward science and suiting measures to local conditions etc, by Compare with the documents and materials. Absorb to Model TAS-986 atom spectrophotometer examine with flame law (air - acetylene ) terms of potassium make deep discussion especially.

白馬湖三级片黄色网站视频真人，蘆山鄉(xiāng)和陬郊的耕作土壤是常德市郊區(qū)耕作土壤的典型代表日高清在线亚洲专区黄片，在這三個地區(qū)分別就水稻土和菜地這兩個基本的土地耕作類型按科學的方法共采集了6個樣品，經(jīng)過風干亚洲精品黄色视频,在线观看，研碎永久免费观看的毛片一区，過篩制成土樣后，測定了它們的PH亚洲干批视频在线观看，交換性酸free性欧美性xxxx，有機質(zhì)，全磷欧美操人网站，速效磷等9指標安也去97人人操，從而對該地區(qū)耕作土壤肥力狀況進行分析，對比文獻資料激情影院福利，總結(jié)分析結(jié)果www.rihanav，針對不同地區(qū)不同的土壤狀況，提出了科學施肥欧美黄色片久久，因地制宜等可行性建議中文字幕制服丝袜第57页，尤其是對TAS—986型原子吸收分光光度計用火焰法測鉀的條件作了深入的探討。

In order to research the effects of minimum tillage and no-tillage patterns on yield and senescence of flag leaf of winter wheat, four tillage patterns were adopted in Longkou city, Shandong Province, China for three years. Four tillage patterns were as follows: conventional tillage with straw turnover, rotary tillage with straw turnover, serrated disk harrow tillage with straw turnover, no-tillage with straw cover. Effects of different tillage patterns on the activities of superoxide dismutase, peroxidase and the contents of malondialdehyde and soluble protein of the winter wheat flag leaves after anthesis were analyzed.

為了研究少免耕耕作體系對冬小麥旗葉衰老狀況的影響久久久精彩视频，采用4種土壤耕作模式（常規(guī)耕作秸稈還田黄色片一级免费的、旋耕秸稈還田、耙耕秸稈還田精品一区二区无码不卡aⅴ、免耕秸稈覆蓋）在山東龍口進行了3年田間試驗，研究了耕作模式對小麥產(chǎn)量及花后不同時期旗葉超氧化物歧化酶和過氧化物酶活性美国又黑又粗A片、丙二醛和可溶性蛋白含量的影響91欧美激情。

In order to research the effects of minimum tillage and no-tillage patterns on kernel quality of winter wheat, five tillage patterns were adopted in Longkou city, Shandong Province, for three years. The five tillage patterns were as follows: conventional tillage with no straw turnover, conventional tillage with straw turnover, rotary tillage with straw turnover, serrated disk harrow tillage with straw turnover, no-tillage with straw cover.

為了研究不同土壤耕作模式對冬小麥籽粒品質(zhì)的影響，采用了5種土壤耕作模式(常規(guī)耕作秸稈不還田综合久久网、常規(guī)耕作秸稈還田亚洲欧美淫秽性生活视频免费看、旋耕秸稈還田、缺口圓盤耙耕秸稈還田黄色无码免费v、免耕秸稈覆蓋)在山東龍口進行了3年田間試驗谁有最新日韩黄色网，測定了冬小麥籽粒蛋白質(zhì)品質(zhì)好男人视频社区www影院、面團流變學特性和淀粉糊化特性。

Soil bulk density of Z treatment was gradually increased in three years, which was significantly higher than that of C treatment in 0~20cm soil layer. 2.2 Effects of tillage systems on soil moisture content There was significantly positive correlation between soil pondage and rainfall of the same period in R, H and Z treatments, and the correlation coefficient was higher than C, especially the H treatment, its correlation coefficient was 0.70**, which reached a highly significant level, and its soil water retention was better than C.

免耕模式土壤容重在0~20cm均逐漸增高一级片,，最終顯著高于常規(guī)耕作模式www.在线三级.com。2.2耕作模式對土壤水分的影響 0~20cm土層旋耕、耙耕和免耕模式土壤貯水量與同期降雨量顯著正相關(guān)黄色网站欧美内射，相關(guān)系數(shù)皆大于常規(guī)耕作模式69pao强力打造免费高清，耙耕相關(guān)系數(shù)為0.70**，達到極顯著水平国产免费黄色网站在线观看，土壤保水性好于常規(guī)耕作模式家庭乱伦欧美亚洲。

At 135 mm depth and 0.28 m/sec speed, the biomimetic furrow opener surface with UHMWPE tubular ridges recorded 0.62 kN and 0.17 kW, while at 135 mm depth and 0.92 m/sec speed, the values were 0.91 kN and 0.82 kW. The experimental values of resistance force and power for the conventional surface furrow opener at 100 mm depth, and 0.28 m/sec speed were 0.72 kN and 0.20 kW, while at 100 mm depth and 0.92 m/sec speed, the values were 1.11 kN and 1.0 kW. At 135 mm depth and 0.28 m/sec speed, the conventional surface furrow opener recorded 0.93 kN and 0.25 kW, while at 135 mm depth and 0.92 m/sec speed, the values were 1.50 kN and 1.35 kW.

試驗測試結(jié)果：當耕深100 mm和耕作速度0.28 m/sec時，實測的普通開溝器的土壤阻力和動力消耗分別為0.72kN和0.20kW久久黄色视并；當耕深100 mm和耕作速度0.92 m/sec時真人无遮挡猛进猛出视频，實測的普通開溝器的土壤阻力和動力消耗分別為1.11kN 和1.0kW；當耕深135 mm和耕作速度0.28 m/sec時com超碰，實測的普通開溝器的土壤阻力和動力消耗分別為0.93kN和0.25kW视频区电影区小说区；而當耕深135 mm和耕作速度0.92 m/sec時，實測的普通表面開溝器的土壤阻力和動力消耗分別為1.5kN和1.35kW免费在线观看视频被多人操。

The predicted values of resistance force and power for the conventional surface furrow opener at 100 mm depth and 0.28 m/sec speed were0.51 kN and0.14kW, while at 100 mm depth and 0.92 m/sec the values were0.98kN and0.88kW. At 135 mm depth and 0.28 m/sec speed, the conventional surface furrow opener recorded 0.70 kN and 0.20 kW, while at 135 mm and 0.92 m/sec speed, the values were 1.40 kN and 1.26 kW. The predicted values of resistance force and power for the biomimetic furrow opener surface with UHMWPE tubular section ridges at 100 mm depth and 0.28 m/sec speed were 0.45 kN and 0.12kW, while at 100 mm depth and 0.92 m/sec speed, the values were 0.73kN and 0.66 kW.

對于超高分子量聚乙烯材料仿生脊型非光滑結(jié)構(gòu)表面奇米第四色888，當耕深100 mm和耕作速度0.28 m/sec時，預測的仿生開溝器的土壤阻力和動力消耗分別為0.45kN和0.12kW亚洲人成三级黄片观看；當耕深100 mm和耕作速度0.92 m/sec時2019黄色超碰在线，預測的仿生開溝器的土壤阻力和動力消耗分別為0.73kN和0.66kW；當耕深135 mm和耕作速度0.28 m/sec時成人播放日韩在线播放AV，預測的仿生開溝器的土壤阻力和動力消耗分別為0.62kN和0.17kW欧美一级A片免费网站；而當耕深135 mm和耕作速度0.92 m/sec時，預測的仿生開溝器的土壤阻力和動力消耗分別為0.91kN和0.82kW狠狠久久精品伊人。

The systematic experiment of conservation tillage in two crops a year region has been designed and performed according to the maximum benefit of resources, environment and production, based on the research achievements of conservation tillage technology in one crop a year regions. Series experiments and embedded theory study have been conducted for estimating the feasibility of water saving in conservation tillage and guiding irrigation. At the same time, the evaporations of soil water under the condition of conservation tillages are measured and its mathematic model is studied and significant research achievements have been obtained.

中文文摘：為研究一年兩熟地區(qū)實行全程保護性耕作技術(shù)體系的可行性国产A片一区二区三区视频网站导航，選擇出適宜該地區(qū)一年兩熟的保護性耕作技術(shù)體系和提供指導灌溉用水的理論依據(jù)，論文在一年一熟地區(qū)保護性耕作體系研究成果的基礎(chǔ)上伊人久久大香线蕉Aⅴ，以一年兩熟地區(qū)全程保護性耕作體系的資源環(huán)境效益和生產(chǎn)效益為依據(jù)狠狠插时时拍，進行了深入的理論分析和田間試驗研究；同時進行了保護性耕作條件下国产高清无码自拍，土壤水分棵間蒸發(fā)的專項試驗及模型研究www,AV视频,，取得了重要的研究進展。

The systematic experiment of conservation tillage in two crops a year region has been designed and performed according to the maximum benefit of resources, environment and production, based on the research achievements of conservation tillage technology in one crop a year regions. Series experiments and embedded theory study have been conducted for estimating the feasibility of water saving in conservation tillage and guiding irrigation. At the same time, the evaporations of soil water under the condition of conservation tillages are measured and its mathematic model is studied and significant research achievements have been obtained.

為研究一年兩熟地區(qū)實行全程保護性耕作技術(shù)體系的可行性亚洲日韩国产欧美性，選擇出適宜該地區(qū)一年兩熟的保護性耕作技術(shù)體系和提供指導灌溉用水的理論依據(jù)看了下面会湿的视频，論文在一年一熟地區(qū)保護性耕作體系研究成果的基礎(chǔ)上，以一年兩熟地區(qū)全程保護性耕作體系的資源環(huán)境效益和生產(chǎn)效益為依據(jù)，進行了深入的理論分析和田間試驗研究可以直接观看的av网址；同時進行了保護性耕作條件下日本视频网站黄色，土壤水分棵間蒸發(fā)的專項試驗及模型研究，取得了重要的研究進展97黄色A级。

Chapter 2 analyzes the traditional self-farming and farming-employed farming methods of the two main features; Chapter 3 is that about when the employer has been artificially cultivated after the elimination, only the self-farming; Chapter 4 is the traditional family smallholder farming production period on the way; Chapter 5 is a special historical period, the period of economic collectivization, In this paper, the period of collective farming as a total cultivated; Chapter 6 is still in accordance with the time and context with it. When the collective total cultivated end, after the family returned to farming, only this time, in family farming with the traditional small family farming periods vary. Chapter 7 is about modern machinery which widely practiced in another way when a new concept of farming and farming methods.

第二章主要分析的是傳統(tǒng)社會自耕和雇耕兩種耕作方式的主要特點色偷偷色偷偷少妇水真多；第三章介紹的是當雇耕被人為的消滅之后，只剩下自耕時的情況亚洲欧美一级A片在线播放；第四章則是到了傳統(tǒng)的家庭小農(nóng)生產(chǎn)時期的耕作方式的介紹美女毛片永久免费观看App；第五章是一個特殊的歷史時期，即集體化的經(jīng)濟時期在线观看av的网址，本文將這個時期的耕作方式稱之為集體共耕欧美一级做一级a做视频；第六章仍舊是依照時間脈絡(luò)順之而下，當集體共耕結(jié)束后国产热线99视频在线，重又回歸到家庭耕作的方式AV免费在线观看福利网址，只是這時候的家庭耕作又與傳統(tǒng)的小農(nóng)家庭耕作時期有所不同；到第七章則是現(xiàn)代化機器廣泛實行時的又一種全新的耕作理念和耕作方式日韩免费网址。