rain-fed

But few mention the declining supply of water that is needed to grow irrigated and rain-fed crops.

但是几乎没有人提到用于种植灌溉和雨养作物所需的水供应的下降。

There is an overdependence on rain-fed agriculture in sub-Saharan Africa and not enough ways to deal with the effects of dry spells and droughts.

撒哈拉沙漠以南的非洲地区的农业过于依赖雨水的浇灌，缺乏应对干旱影响的有效措施。

Effects of different cover and rotation on soil microbial biomass phosphorus in rain-fed agriculture

旱作条件下不同覆盖及耕作方式对土壤微生物量磷的影响

Economic feasibility of PAM application in rain-fed agriculture in the loess regions of Northwest China

PAM（聚丙烯酰胺）应用于西北黄土地区旱作农业的经济分析

Study on adjusting and controling cultivation technique of mixed mulch on rain-fed cotton field

旱地棉花综合覆盖调控栽培技术研究

Plant N accumulation in different cultivation practices varied, ranked as follows: supplementary irrigation film mulching rain-fed straw mulching.

不同栽培模式氮素累积量显著不同，表现为补充灌溉地膜覆盖雨养秸秆覆盖。

An experimental research on ground water utilization of rain-fed crop

旱作物利用地下水的实验研究

With such irregular rain patterns, normal rain-fed farming is not possible.

在这种不规则的降雨情况下, 依靠正常雨水耕作是不可能的.

Studies on the Effects of Interactions of Water and Nitrogen Treatments on Light, Water Efficiency and Yield of Rain-fed Winter Wheat

水肥互作对中肥旱地小麦光能、水分利用效率及产量效应的研究

Effect of humate compound fertilizer on physiological characteristics and yield of wheat under irrigated and rain-fed conditions

灌溉和旱作条件下腐植酸复合肥对小麦生理特性及产量的影响

But these networks look rather different from rain-fed rivers on Earth.

不过,这些谷地网络看起来和地球上由雨水涵养的河流略有不同,反而比较像沙漠地区里慢慢渗出的地下水所形成的河流网络.

【 Objectives 】 Under the rain-fed condition, corn yield is influenced by multi-factors.

【目的】雨养条件下，玉米产量受多个因子的影响。

Ning will be based on rain-fed agriculture and agriculture-based county.

会宁是以雨养农业为主的农业县。

The division belongs to rain-fed and dry-land farming area and it is mainly one harvest per year for the wheat;

属雨养旱作农业区，小麦多为单料作物；

Study on the Combined Effects of Simulated Rainfalls and Nitrogen Treatments on the Yield and Soil Moisture Dynamic change of Rain-fed Winter Wheat

旱地小麦降水年型与氮素供应对产量的互作效应与土壤水分动态的研究

Long term simulation of water potential productivity of alfalfa on rain-fed highland in south of Loess Plateau

黄土高原南部旱塬地苜蓿水分生产潜力模拟研究

Effect of Applying Potassium Fertilizer on Rain-Fed Cotton Field

旱地棉田施用钾肥效应

Influence of non-tillage and stubble on soil microbial biomass and enzyme activities in rain-fed field of Inner Mongolia

免耕与留茬对土壤微生物量C、N及酶活性的影响

Most of the agriculture is rain-fed, and with lack of rain, crop yields are poor.

这里的大部分农业靠降雨维持，如果缺乏降雨，庄稼的收成就很差。

This paper analyzed the eco-physiological characteristics of spring wheat leaf photosynthesis in the semiarid rain-fed agriculture region of Loess Plateau, and their responses to the environmental factors.

分析了黄土高原半干旱雨养农业区田间春小麦叶片光合生理生态特征及其对环境因子的响应。