Thismethod is also suitable for monitoring drought and estimating yield loss of wheat in dry farming areas in northwest of China.
该方法适用于中国西北旱作小麦的干旱监测与灾损评估。
Improving maize resistance to corn borer is an economical and effective technique to reduce the yield loss caused by insect damage.
提高玉米自身的抗螟性以减轻虫害损失是一项经济、有效的方法。
This paper attempts to draw a general relationship between crop yield loss and chewing injury of reproductive organs by insect pests.
本文试从分散的材料中概括出主要大田作物繁殖器官被害与产量损失之间的一般关系。
The decrease of number of available tillers was the main factor in the components of yield loss.
在产量损失构成中，有效分蘖数的减少为主要因素。
Fusarium spp. are particularly significant filamentous pathogen fungi, which can cause severe yield loss worldwide.
镰刀菌是一种重要的植物病原菌，给世界范围内农作物生产带来巨大破坏。
Conversely, for Millet sown at high density, yield loss was prevented due to the increased in reproductive allocation.
相反，对于高密度种植下的谷子，由于繁殖分配的增加，产量损失得以避免。
After determining duality nonlinear functions of two subsystem, we give the general form of yield loss forecasting model.
在两个亚系统的二元非线性模式确定以后，给出了产量损失预测模型的一般形式。
The rice yield loss in the torrential rain area of Fujian in 2007 was predicted and tested by means of the evaluation model.
利用评估模型对2007年福建暴雨发生区域的水稻单产进行灾损预估及检验。
The yield loss rate of rice plant concerns not only damage time and damage degree, but also management strategies and weather.
水稻的产量损失率不仅与蚁螟的为害时间、为害程度有关，而且还与管理措施和气候条件有关。
The premature bolting is a destructive problem which causes lots of yield loss and low quality especially in the spring planting.
但我国的春萝卜生产还存在许多限制因素，其中最为突出的是先期抽薹。
The disease seventy was increased with the increasing application of nitrogenous fertilizer, but yield loss varied with varieties.
增施氮肥后，甘蔗赤斑病严重度增加，但对产量的影响则因品种而异。
The grains and grain weight decreased and the blasted rate and yield loss rate of rice increased with the increase of disease grains each ear.
水稻稻曲病随着每穗稻曲球数增加，穗粒数、粒重及千粒重下降，秕谷率上升，产量损失率增加。
The result showed that in disease percentage, disease index and yield loss, one-harvest water bamboo was higher than two-harvest (autumn-harvest).
结果表明，一熟茭品种“蒋墅茭”的发病率、危害程度及相应的产量损失要高于二熟茭（秋茭）；
Effect of different densities of Empoasca vitis on the yield loss rate and the damage indexes of fresh tea leaves was evaluated with the net method.
利用网罩法测定了假眼小绿叶蝉不同虫口密度对茶鲜叶产量及受害指数的影响。在此基础上，建立了不同虫口密度与茶鲜叶经济损失率线性回归方程。
There was significant positive correlation among the applied amount of nitrogen, percentage of diseased plant, index of disease and percentage of yield loss.
施氮量、病株率、病情指数、产量损失率间呈极显著正相关。
In recent years, rice bacterial foot-rot disease has happened in southern rice areas and was prevalent throughout Zhejiang province and caused a severe yield loss of rice crop.
水稻细菌性基腐病，近几年在南方稻区陆续发生，浙江各地为害渐趋严重，已给水稻生产带来较为严重威胁。
Maize dwarf Mosaic was predicted using growth model forecasting method, Markov chains forecasting method and regression model forecasting method. And yield loss of MDM was assessed.
利用生长模型预测法、马尔科夫链预测法和回归模型预测法对玉米矮花叶病发生流行进行预测，并对玉米矮花叶病损失估计进行了初步探讨。
Maize dwarf Mosaic was predicted using growth model forecasting method, Markov chains forecasting method and regression model forecasting method. And yield loss of MDM was assessed.
利用生长模型预测法、马尔科夫链预测法和回归模型预测法对玉米矮花叶病发生流行进行预测，并对玉米矮花叶病损失估计进行了初步探讨。
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