桑园

With the increase of instar, Bombyx mori larva had no gained significant resistance.

阿维菌素的安全间隔期较长，不宜在桑园中使用。

By the examination of growth index, percentage of bulblet propagation and quality of root, the result showed that aeras of Asiatic lily bulb propagation should be selected strictly during its production and Sangyuanba in Hanzhong is one of perfect area in Qinling-Moutain.

对不同地区的种球膨大系数、子球增殖率、根系质量等特性进行了综合比较。结果表明，亚洲百合在秦岭进行繁育必须对具体地区进行严格的筛选。研究认为，位于汉中市的桑园坝产区可以作为亚洲百合在秦岭山区的理想繁育基地之一。

The basic biological control method of the longicorn has been obtained.The studies on the sperm vigor of irradiated ma

这对在非制种桑园内大面积应用此不育剂，以克服螨类抗药性问题，有着重要意义。

In 2003,on the whole the soils in Wujiang were little acid, pH from 6.40±0.38 to 5.40±0.55now, and the trend of acid was in Tailake region. The available phosphorous in Paddyfield were significantly lower than. the other five land use patterns. As a result,controlling the phosphorous output form vegetable field mulberry yard and other dryland might be more significant to control the non-point pollution in Tailake region.

吴江市土壤基本上属微酸性土壤，2003年耕地监测中土壤pH值由1982年的6.40+0.38变为5.40±0.55，可见近20年来太湖地区普遍存在的酸化趋势；在稻田、林地、桑园、菜地、果园、旱地六种常见的土地利用方式中，稻田土壤速效磷显著低于其它五种利用方式中；因此，在控制太湖地区磷的面源污染上，控制菜地、桑园和其它旱地土壤磷的输出可能更为迫切。

With me the county is exemple, how is the sea large county of production of mulberry of Jiangsu province silkworm, area of existing mulberry field is close 120 thousand mus, sericiculture farmer many 90 thousand, extend every year in recent years silkworm plants 340 thousand pieces or so, produce chrysalis to amount to 130 thousand t .

以我县为例，海安是江苏省蚕桑生产大县，现有桑园面积近12万亩，养蚕农户9万多户，近年来每年发放蚕种34万张左右，产茧达13万t。

In order to increase solar energy utilization ratio in mulberry gardens, mulberrytrees of different varieties were planted alternately to regulate the growth relationshipbetween individual trees and tree population,between arboreous and bush mulberries .

为提高桑园空间与光能利用率，在桑园采用不同的桑树品种搭配、进行高低立体交叉栽植，合理调整桑树单株与群体、乔木桑与灌木桑之间的生长关系

The results have shown that 16 generations of the pest occurin a year in Beibei, Chongqing. At 15. 4℃-15. 6℃, 20. 1 ℃- 21. 6℃, 24. 4℃- 25. 8℃ and2 9. 6℃- 31. 5℃, theegg, nymph, protonymph and deutonymphstages last, on the ave...

成螨寿命8～42天，每头雌螨平均34.8粒；幼、若、成螨喜在叶底及叶缘分散为害，田间发生以5～6月、10～12月螨量大，对雨水冲刷及农药的抗性远比朱砂叶螨强，有逐步上升为桑园主要害螨之一的趋势。

Henn. Ito et Imai and Ciboria carunculoides(Siegl.et Jenk) Whetz.et Wolf,occurred,and each kind of pathogeny had its own distinct biological characters.

通过对崇明县松外松果桑园内桑椹的发病症状及其病原的调查表明，园内有3种菌核病发生，分别为桑椹肥大性菌核病、桑椹缩小性菌核病和桑椹小粒性菌核病，其病原菌的生物学特性明显不同。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。