查询词典 commodity crop

The field water capacity, wilting coefficient and effective water content have negative correlation with crop water requirement, and the linear negative correlation of field water capacity, effective water content and crop water requirement is above the significant level.

土壤田间持水量、萎蔫系数、有效水含量均与作物需水量呈负相关关系，其中，田间持水量、萎蔫系数与作物需水量的线性负相关均达显著水平以上。

Build a good crop growth and development model, not only can predict the crop in different environmental conditions, most need to re-estimate the model parameters and optimization.

构建良好的作物生长发育模型，不但可以预测作物在不同的环境条件下模型参数大多需要重新估计和优化。

Farms in Canada are about equally divided between crop raising and livestock production. Wheat is the single most important crop, and the Prairie Provinces of Alberta, Manitoba, and Saskatchewan form one of the greatest wheat-growing areas of the world, producing more than one-fifth of the world's supply.

加拿大农业平均分为两个大的板块，即农作物种植和家畜饲养两大板块，其中小麦是最重要的农作物，Alberta， Manitoba， Saskatchewan 省是世界上几个最大的小麦种植基地，世界上1/5的小麦都出那几个地区的供应。

Already the Mehrgarh people used domesticated wheats and barley and the major cultivated cereal crop was naked six-row barley, a crop derived from two-row barley.

美赫尕尔的人们已经使用驯养的小麦和大麦，还有培育的主要农作物是六排去壳的大麦，还有一株源自两排的去壳大麦。

Analysis on the status quo of production and industrialization prospect of the root and tuber crop in Yunnan;2. The status quo of production of staple root and tuber crop was analyzed in this paper.

通过对云南主要薯类作物的生产现状分析认为：云南薯类作物已从单一的&救荒&作物，向轻工、能源、医药原料转变，云南发展马铃薯具有得天独厚的气候优势和区位优势，可积极发展；而甘薯作为未来重要的能源作物应该引起足够重视；魔芋发展中应该注意多元市场的开发；发展薯蓣的规模要适度，并要增加产业中的科技含量，提高竞争力。

We will estimate the effect of crop insurance and SURE payments on expected returns to crop production and the variability of those returns for seven representative farms in the PPR.

我们的影响农作物保险和确定支付的预期收益作物生产和变异性的回报，那七个代表性的农场。

The results indicated that OC in crop root and stubble was available for balance of soil OC in plough horizon, but was not enough generally as only mineral fertilizers were supplied. With no fertilizer, the biomass and the amount of OC of crop root and stubble both decreased year after year.

试验结果还表明，根茬有饥碳对维持耕层土壤有机碳的平衡有相当大的贡献，但在单施化肥时大多不足以补充矿化消牦；在不施肥时，根茬生物量和有机碳量均逐年下降。

To discuss the mechanism of controlling soil erosion by wind with standing crop stubble, combined the wind tunnel experiment with field experiment, the influence of soil erosion by wind on standing crop stubble under no-tillage practices was analyzed.

为了探讨直立作物残茬防治农田土壤风蚀发生的机理，该文利用风洞试验和野外观测相结合的方法，分析土壤免耕条件下直立作物残茬对农田土壤风蚀的影响。

World, things can be very pyridoxine may do so with regret McGREGOR, in accordance with people's thinking seems to consider the next steps available, Tam mind most often people do not crop stubble is called the most preferred one species of crop-unfortunately, Our people have difficulty seems elusive.

世界之中，很哆事都可似跟著憾觉去做，可似根据人的思想去考虑下壹个步骤，担往往人茬心里最不茬呼也是最茬意的壹种憾清，是让人咱己难似捉摸。

The wind tunnel test results show that surface soil velocity and wind erosion modulus in the farmland under plow tillage are larger than that under no-tillage with standing crop stubble, while surface roughness under plow tillage is smaller than that under no-tillage with standing crop stubble.

风洞试验研究表明：翻耕土壤地表风速、土壤风蚀侵蚀率均比免耕土壤高，而地表粗糙度免耕明显高于翻耕。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。