The land assignment insufficiency , lives contentedly in one place with little inclination to moveelsewhere the idea influence , the land salinization which the plundering cultivation way causes and so on , causes the immigrant to return moves the ratio to be higher 土地分配不足，安土重迁观念的影响，掠夺性耕作方式导致的土地盐碱化等，使移民返迁比率较高。
From discussing the change of methods of cultivation , getting a deeper understanding of the evolution of taboo . thirdly , pointing out that taboo can make yi nationality more united , can make some positive function in standard yi nationality member ' s morality 尤其着力从民族文化生态系统的角度讨论禁忌演变的动力，通过耕作方式(获食模式)的变化探讨彝族禁忌和宗教的变化，从而深化对禁忌演变的认识和理解。
The effects and mechanisms of different water saving agricultural practices ( mulching , cultivating practice , planting treatments and irrigation treats ) on preventing soil evaporation and the possible measures that should be emphasized in the future are discussed 摘要阐述了节水农业措施（覆盖、耕作方式、种植方式和灌溉制度）对农田土壤蒸发的抑制效果，并分析其抑制土壤蒸发的机制和减少土壤蒸发的可行途径，指出今后该方面的研究重点。
The usage quantity of chemical fertilizer and diesel 0 : 1take the first place in our province , the effective irrigated area is ninety percent of the cultivated area with the development of the economy and the improvement of the quality of the people who are engaged in agriculture , the agricultural production also changes : one aspect is the number of the labours who are engaged in agricultural prosecution is decreasing year by year . the labours of the rural areas are liberated from farming step by step and more and more labours take up the third industries and processing industries of the agricultural products and so on . the agricultural production calls for saving cost , racing against time and decreasing consumption . the other aspect is the quality of the people who are engaged in the agricultural production has some changes , that is the number of the labours whose ages are below 25 is 随着经济的发展和从业人员素质的提高农业生产也发生了变化,一方面人力投入粮食生产的比例在逐年下降,从事农业生产的农村劳动力逐年缩少,农村劳动力逐步从农业劳作中解放出来,走向农村第三产业和农产品加工行业等等,农业生产也随时要求实现节本、争时、减耗;同时,农业生产中一家一户小规模生产经营方式和产业结构调整带来的“插花地”的种植模式,使常规的保护性耕作措施不能完全适应现代农村农业生产的实际需要,结合秸秆还田以耙耕或旋耕代替传统的铧式犁翻耕是当前农业生产最为适宜的耕作方式。
Their reluctance has been put down to ignorance ( farmers do not appreciate the benefits of fertiliser until they have tried it ) , timidity ( they are wary of upfront commitments of money and prefer farming that delivers a reliable , even if low , return ) or illiquidity ( farmers cannot get the credit they need to afford seeds and fertiliser ) 他们不情愿施肥或是因为无知（他们在尝试之前难以领会施肥的好处） ，或是因为胆怯（他们对待预付保证金很谨慎，而宁愿采用低产但可靠的耕作方式） ，或是因为缺乏资金（农民不能获取购买种子和化肥的贷款） 。
Based on the data obtained from the experiments on the soil with same structure under three cropping patterns , this paper makes a research into the numerical relation between the parameters of infiltration model and physical parameters of soil , and forms the statistic model about them , in order to produce a simple and easily used calculation method and a model for infiltration parameters and to provide the calculation parameters as required for the technical parameters of the water - saving irrigation 本文以榆次同一质地三种不同耕作方式下的土壤在自然条件下进行的大量试验结果为依据，分析了土壤入渗模型参数与所获得的土壤物理参数之间的定量关系，研究和建立土壤入渗模型参数与土壤物理性状参数间的统计模型，为地面灌溉节水向深层次的发展提供简单易行的土壤入渗参数确定方法和模型，为确定节水灌水技术参数提供所需的计算参数。
He was encouraged to see that farmers practicing organic farming did not apply chemical fertilizers and pesticides to their crops but adopted knowledge - based farming methods to work in harmony with the nature and contribute to conservation . " there is an increasing demand for organic products by consumers , particularly among those who are more environment conscious , " dr yeoh said 杨医生乐意看见高国濯以小生意形式经营的农场得到成功，而农友没有使用化学合成肥料及杀虫剂，转移采用知识型耕作方式，与大自然环境协调，对保育作出贡献，杨医生感到鼓舞。
The basic fertility characteristics , and soil microbes and the relationship between them were investigated on paddy fields of purple soil , where no - tillage and ridge culture had been practiced for twelve years . the advantages and disadvantages were contrasted among five culture modes ( conventional culture , no - tillage and fallow in winter , no tillage and ridge culture , no - tillage and box culture , and the rotation of paddy and upland ) 通过对12年免耕的稻田的土壤微生物和基本肥力特征研究，找出二者之间的关系，指出免耕耕作方式养分增加、肥力提高的主要原因是作物秸秆的加入以及免耕改变了土壤的水、热、气、肥条件，并因此而探索影响秸秆分解的因子，找出微生物种类和有机、无机肥料的更好搭配。
