产量多的

On this basis, according to historical data, apply ANN and differential simulation method to get the quantitatively correlative relations between each production and its own influence factors, and introduce the new methods of prediction for dynamic indexes with gas-field development (The combinatorial prediction method based on fuzzy comprehensive evaluation, the method of ANN to select optimally combinatorial prediction models and the ANN prediction method based on genetic algorithm).(2) Base on mathematical programming, combine with quantitative economics and techno-economics, introduce economical indexes to establish production"s distribution optimal model, production"s constitution optimal model and measured production"s constitution optimal model, including multi-objective models and five-years models. Upon this, the optimal project for all gas field and each gas-collected factory can be got. Also, introduce the time value of capitals to improve on these models.(3) Base on the optimal solution theory and algorithm theory for the nonlinear programming problem, introduce the SUMT algorithm and genetic algorithm to study how to solve the models, and on the basis of normal genetic algorithm, make use of auto-adaptively modulating method to improve on normal genetic algorithm; Base on algorithm"s convergence theory and calculation"s complexity theory to analyze seriatim SUMT algorithm"s convergence and genetic algorithms convergence, and compare performance with each other.

在此基础上，利用神经网络方法和微分模拟方法根据历史数据得到各分项产量与其影响因素之间的定量关联关系，并引入气田开发动态指标新的预测方法(基于模糊综合评判的组合预测方法、神经网络优选组合预测模型预测方法以及基于遗传优化的神经网络预测方法)；(2)以数学规划为基础，结合数量经济学和技术经济学，引入经济指标建立产量分配优化模型、产量构成优化模型、措施产量构成优化模型、气田开发多目标规划模型以及五年规划模型，进而获得全气田及各采气厂的最优方案，并引入资金时间价值对五年规划模型进行改进；(3)以非线性规划问题的最优解及算法理论为基础，引入SUMT算法以及遗传算法对模型的求解进行研究，并在原有的遗传算法基础上，引入自适应调整方法对遗传算法进行改进；以算法的收敛性理论和计算复杂性理论为基础，逐一分析SUMT算法以及遗传算法的收敛性，并比较三种算法的优劣性。

Field experiment was conducted to investigate yield and water use efficiency of spring wheat under different irrigation schedule.

有关不同灌溉模式对小麦产量及水分利用效率的影响已有不少报道[2，3]，但选用多个小麦品种，研究灌溉模式对小麦产量和水分利用效率影响的报道并不多见。

The crude protein content of L. multiflorum was high. At earing, it was 14.2%, with yield of 114.2 ( g/m~2). When herbage dry matter yield was significantly lower than Avena sativa , crude protein yield was significantly higher.

多花黑麦草的粗蛋白含量很高，抽穗期粗蛋白含量为14.2%，粗蛋白产量为114.2 g/m2，在干草产量显著低于燕麦的同时，粗蛋白产量却显著高于燕麦。

Every treatment combination has 4 replications.(1)The germination indexes of the former are higher than that of the latter; the germination of the former is stimulated by NaCl density of 0.3 %, while that of the later is restrained by all kinds of NaCl density.(2)With increasing of temperature and PEG indesity,the order of germination rate and vigor of Bromus stamineus and Bromus inermis is decreaced.(3)Under treatment of broadcast sowing and plant density of 549kermels·m~(-2), Bromus stamineus has the highest bud rate, fresh weight, seed yield, while treated with 25cm row spacing and 412kermels·m~(-2) plant densities, tillers, plant height, growth rate increased to the top;(4) Under treatment of broadcast sowing and plant density of 549kermels·m~(-2), its growth rate is took second place, while treated with 15cm row spacing and 824kermels·m~(-2) plant densities, it has the highest seed yield

3撒播时，引进种在播种密度为549粒·m~(-2)处理下单位面积出苗率最高，分蘖数最多，鲜重最大，单株最高，种子产量最大；生长速度在播种密度为412粒·m~(-2)处理下生长最快，密度为549粒·m~(-2)处理下稍次之，结合方差分析可以初步确定它在撒播时的播种密度为549粒·m~(-2)；(4)条播时，在行距为25cm、播种密度为412粒·m~(-2)处理下单位面积分蘖数最多，鲜重最大，单株最高，生长速度最快；种子产量在行距为15cm、播种密度为824粒·m~(-2)处理下最大，在行距为25cm、密度412粒·m~(-2)处理下次之；结合方差分析，就3种规格的行距来说，引进美国无芒雀麦条播时的行距为25cm，播种密度为412粒·m~(-2)；就这两种播种方式来说，应该选择撒播。

This machine has high output, one worker can operate 4 machines, per machine 's output(24 hours) is 200m2.but traditional tufting machine one worker one day(8 hours) only can produce 8m2.So it can large save work force ,improve productivity, enhance economic benefit.

本系列机型产量高，每人可看管4台，每台产量(24小时计)为200平方米左右，而传统的簇绒机1人一天(8小时计)的产量只能10多个平方米，因此大幅度节约劳动力、提高生产率、增加经济效益。

This article has studied slowing release N fat to the cotton and the paddy rice growth growth influence, finally indicated: Slowing release N is fat and N fat to the cotton and the paddy rice output and the quality not obvious difference; But compares can obviously enhance the cotton the output, the bell number, the bell heavy gin turnout has the increase, a high increase, the fruit-bearing branch number increases, but to textile fiber quality not tremendous influence;Slowing release N fat fat compares the paddy rice community with N in a big way, stooling strong, Cheng Suilv high, ear of number of seeds many, the output production increase is remarkable; The quality hasthe big enhancement.

研究了缓释型氮肥对棉花和水稻生长发育的影响，结果表明：缓释型氮肥与氮肥对棉花和水稻产量和品质没有明显差异；但较对照能够明显提高棉花的产量，铃数、铃重衣分均有增加，株高增加，果枝数增加，但对纤维品质没有大影响；缓释型氮肥与氮肥较对照水稻群体较大，分蘖力强、成穗率高、穗粒数多，产量增产显著；品质有较大的提高。

The deep cultivation-root cutting in before winter stage would increasethe weight and ratio of root system in middle and lower layer,the resultswould decrease the root redundancy.

冬前深耘断根可增加中、下层根系的重量和比率，降低根系生长冗余性，控制最高总茎数，提高成穗数及成穗率，使籽粒产量中来自花后光合器官输送的比例增加，从而使产量提高，因而在旱地高产麦田应推广冬前深耘断根。6研究了降水量对旱地高产小麦耗水规律及产量的影响，拔节前降水多且占比重高，土壤供水量及占比重少，拔节后降水量减少且占比重低，土壤供水量及占比重高，利于在旱地高产麦田形成高产。

Based on the data from1981 to 2002 on crop yield, fertilizer application and soil properties of 200 fields in the watershed of Balaton Lake in Hungary, the relationships of fertilizer use to crop yield and soil nutrient content were evaluated.

利用匈牙利Balaton湖流域200多个农场田块1981-2002年的作物产量、施肥量和土壤养分历史资料，分析施肥量和作物产量的关系，探讨施肥量剧减对作物产量的影响。

For example, IRRI's scientists have found a gene that allows an Indian rice strain to survive total immersion[3] for several weeks, and have cross-bred it into a strain favoured by farmers in flood-prone Bangladesh.

试种表明，新品种大米产量正常条件下与原品种产量相当，但在长时间洪涝后则是原品种产量的两倍多。

For example, IRRI's scientists have found a gene that allows an Indian rice strain to survive total immersion[3] for several weeks, and have cro -bred it into a strain favoured by farmers in flood-prone Bangladesh.

试种表明，新品种大米产量正常条件下与原品种产量相当，但在长时间洪涝后则是原品种产量的两倍多。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。