免耕不同覆蓋，NTS處理表現出良好的供水性，而NTP表現出很好的保水性。 Under no-tillage with different mulching, the treatment NTS take on the strong ability of water supply while the NTP has good ability of water retainment.
免耕覆蓋處理中由於作物秸稈中養分的分解，N、K的淋失比例高於常規耕作。 No- tillage with stubble mulch had a lager N and K leaching ration than the conventional tillage.
以耕翻地為對照，在灘地上莜麥留茬地的風蝕量減少了9.1%，而玉米留茬地、免耕菜地的風蝕量則比對照分別增加了123.71%和229.07%。 In bottomland, the erosion of stubble land of naked oats is 9.1% less than CK(plough land), while the erosion of stubble land of corn and no-tillage of vegetable is 123.71% and 229.07% more than CK.
土壤團聚度隨免耕年限的增加而增加，表層增加更明顯； Soil aggregate degree increased with no-tillage years, especially in the surface layer.
該機機具結構簡單，重量輕，調整使用方便，能夠滿足小麥免耕播種的農藝要求。 The planter has the advantages such as simple structure, light weight, easy to adjust which could meet the agricultural requirement of wheat no-tillage plowing.
免耕播種機在殘茬覆蓋地作業是否具備良好的防堵性能，已成為影響免耕播種機生產效率和播種質量的關鍵因素之一。 A better anti-blocking capability of no-tillage planter in the stubble mulch farmland has become one key factor of production efficiency and seeding quality.
通過免耕和非免耕稻田中土壤物理化學特性和水稻根系生長發育特性的試驗觀測，研究了快速清茬免耕栽培的影響效果。 Effects of no-tillage cultivation with quick cleaning-stubble on the properties of soil and growth of root systems of paddy rice were investigated.
免耕栽培有利於水稻根系發育和在土壤中的分布，同時免耕大幅度提高水稻根系的吸收活力。 No-tillage cultivation improved the growth, development and distribution of rice root systems, and enhanced absorption activity of root systems as well.
儘管傳統耕作的油菜籽粒產量高於立茬免耕，但傳統耕作的水分利用效率和經濟效益顯著低於立茬免耕。 Although the treatment of conservational tillage had a higher grain yield than the treatment of standing stubble with no-tillage, but it had a lower WUE and profit.
同時，保護性耕作所使用的免耕播種機，在秸稈殘茬覆蓋的地表工作，其性能可靠、通過性好．能實現化肥深施和免耕播種。 The conservation tillage mechanism works well. It can pass through soil surface that is covered with crop straws and residues to sow seed with no-tillage and deeply spread fertilizer at the same time.
合理施肥、保護林地、實施水保耕作和完善養分管理政策體系是減少農業氮素非點源污染的重要途徑。 Logical fertilizer applications, forest protection, no- tillage farming and nutrient management policy were the important ways in reducing non- point resource pollutions of agricultural N.
另外，僅有免耕而沒有秸稈覆蓋能減少21.6％的沙塵量。 No-tillage without residue cover can reduce the erosion by 21.6%.
相同施化肥條件下，免耕和深松不利於土壤微生物數量的增加； Under the same condition of using chemical fertilizer, no-tillage and deep-tillage are not good for reproduction of soil microbe;
隨着免耕年限延長，土壤微生物量碳、氮均呈逐漸降低的趨勢，免耕10年以上土壤微生物量碳最低，微生物量氮在免耕7～8年時最低。 The microbial biomass C and N were lowest in no-tillage 10 and 7~8 years, respectively, and then decreased along with the the no-tillage years increasing.
免耕處理下的生物量、經濟產量、經濟產值的均值都高於翻耕處理； The average of biomass, economic yield and economic value of no-tillage were higher than tillage treatment.
在利用稻鴨互利共生的關係的基礎上，將免耕技術引入稻田生態系統，形成稻田免耕養鴨技術新體系。 Based on the mutualistic symbiosis relationship of rice and duck, jointed with no-tillage technique, the new no-tillage system of raising duck in paddyfield was formed.
由於能源、水電、農具以及糧食產量的差異，免耕將提高經濟效益。 As for the differences of the energy, the water and electricity, tools, grain yield, no-tillage will enhance economic efficiency.
實行免耕制，關鍵是有機殘體的返還。 The key of no-tillage is the supply the past crop residue to soil.
研究了四個不同因素對雜交早稻免耕拋栽立苗的影響。 The effects of four factors on techniques for seedling establishment of No-tillage seedling broadcasting cultivation of early hybrid rice were studied.
隨着免耕年限延長，土壤微生物商呈先增加再降低的趨勢，免耕10年以上土壤微生物商最低。 The microbial quotient increased firstly, then decreased, along with the no-tillage years increasing, which was lowest in no-tillage 10 years.
圖1 不同處理玉米的乾物質積累動態NTSS： 高茬收割立茬免耕； Fig. 1 Dynamics of dry matter accumulation of maize in different treatmentsNTSS: no-tillage with straw standing;
受土壤溫度等物理性狀的影響，免耕地作物生物量及產量明顯不如翻耕地。 Effected by soil temperature and the other physical properties, the biomass and yield are less under no-tillage than that under plow tillage.
針對免耕播種機播種質量的要求，研製出一種具有自動控制動力切茬裝置的免耕播種機，使其開溝器能開出合格的溝並形成良好的種床。 In order to meet the requirement of the No-tillage planter seeding quality, a No-tillage planter with automatic control dynamical stalk cutting set was developed.
本文研究了鈣質紫色土在連續四年免耕、壟作、秸杆覆蓋下的土壤水肥狀況的變化。 Studies on soil fertility changes of calcium purple soil under continuous cultivation of no-tillage and mulch straw farming from 1992-1995 were conducted.