Asymptomatic
发表于 2025-3-25 05:53:09
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牛的细微差别
发表于 2025-3-25 10:51:59
,Bilanz — Spin ist tot, lang lebe Spin,e dairy sector development and associated increase in FYM supply contribute to the productivity improvement of upland cereals. However, due to high transportation costs of FYM, the impact is spatially constrained within the small area where dairy sector development has taken place.
Estimable
发表于 2025-3-25 15:01:37
,Bilanz — Spin ist tot, lang lebe Spin,is show that high transport costs, illiteracy, adverse local climates, and limitation in risk and credit markets are major constraints on the functioning of fertilizer markets, suggesting that government actions to close knowledge gaps and lower transportation costs can increase fertilizer use among farmers.
爱花花儿愤怒
发表于 2025-3-25 18:20:19
sferability of Asian technology.Outlines explicit policy rec.This volume explores the usefulness of the Asian model of agricultural development for Africa, where, even before the recent world food crisis, half the population lived on less than on dollar a day, and a staggering one in three people an
Ablation
发表于 2025-3-25 20:53:28
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刚开始
发表于 2025-3-26 03:11:56
The Impact of Technological Changes on Crop Yields in Sub-Saharan Africa, 1967–2004study is to assess the impacts of climate, as well as population pressure on the agricultural crop yields in SSA from the late 1960s to the early 2000s. Using a country-level panel data set, we found evidence that technology advancements in SSA have mitigated the adverse effects of climatic factors on wheat, rice, and maize yields.
Emg827
发表于 2025-3-26 06:50:13
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有杂色
发表于 2025-3-26 09:23:49
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得罪人
发表于 2025-3-26 15:42:34
The Possibility of a Rice Green Revolution in Large-Scale Irrigation Schemes in Sub-Saharan Africaproduction and consumption has been growing in SSA. Therefore, national and international attention now centers on how to increase rice production in SSA as an important component of the region’s strategies on food security. One possible strategy to achieve this goal is to take an Asian-style approa
Intact
发表于 2025-3-26 19:54:28
The Declining Impacts of Climate on Crop Yields During the Green Revolution in India, 1972–2002t impact on agricultural production. To date, most of the empirical studies on how agro-climatic factors affect agricultural productivity have focused on developed countries. The purpose of this study is to demonstrate that the impacts of climatic factors on cereal yields have been mitigated during