In recent decades, a considerable number of local breeds have been replaced by high-yielding breeds for reasons of profitability. Many local breeds are now thre
This paper is devoted to the possibilities of the reclamation use of claystone sorbents of the Most and Sokolov basins. The properties of phytotoxic areas suita
目的评估雪山金罗汉止痛涂膜剂治疗骨性关节炎（瘀血阻络证）的有效性及安全性。方法选择2011年2月-2012年1月唐山市中医医院等3家临床试验机构的骨性关节炎（瘀血阻络证）患者96例，最
从前有两座山,山里各有两座庙,庙里各有个和尚,两个和尚都到山下挑水,这一挑啊就挑了6年,于是他俩成了无话不谈的好朋友。突然有一天,两天,三天,已经七天了,
There were two
The objective of the research was to evaluate the effects of saline stress on the initial growth and physiological parameters of three varieties of cotton plant
Two Job’s tears cultivars, yy18-1 (high resistance to drought stress) and yy12-7 (susceptible to drought stress) were used to investigate the responses of seed
Farm management practices differ considerably among farmers. In this article, we explore the processes which farmers go through when making operational decision
Weeds are the most limiting factor in soybean production in South Carolina. With early emergence and rapid growth, weeds effectlively compete for water, nutrien
本文研究了求解双线性系统状态方程的一种解法，并给出了具体的算例。
Smallholder dairy farming in Africa is classified into rural, peri-urban and urban systems. The major classification criterion is demographic. Dairy systems are