Regional crops distribution is an import subject for developing modern agriculture now. Based on existing distribution of 7 grain and oil crops in Sichuan province, this paper chose 5 economic evaluation indexes to discuss the regional distribution of grain and oil corps in Sichuan with the method of grey situation decision. According to the row decision and column decision, this paper shows th...

Diversification of agricultural systems is a standard suggestion for increasing the resilience of rain-fed subsistence farming to drought. However, grain crops share many physiological characteristics, potentially forming a plant functional type (PFT), a term ecologists apply to groups of species that respond in functionally similar ways to environmental variation. Here we test whether grain cr...

There are various designs of tools and equipment used for harvesting the crops and threshing it separately. Sickles, hand tools and reapers for grain crops and diggers for tuber crops and rhizomes, operated with different power sources are used. Combine harvesters, both tractor mounted and self-propelled, are being very widely used for different grain crops. Functional requirements and principl...

Subsistence systems in insular Southeast Asia and the western Pacific are geographically patterned: from west to east, grain crops disappear while root and tree crops become more important, and south of the Torres Strait no crops are grown. Previous explanations for these patterns have assumed either a historical cause (the expansion of root and tree crops before grain crops) or some form of en...

Grain legume production in Europe has recently come under scrutiny. Although legume crops are often promoted to provide environmental services, European farmers tend to turn to non-legume crops. It is assumed that high variability in legume yields explains this aversion, but so far this hypothesis has not been tested. Here, we estimate the variability of major grain legume and non-legume yields...

Cover crops constitute one of the most promising agronomic practices towards a more sustainable agriculture. Their beneficial effects on main crops, soil and environment are many and various, while risks and disadvantages may also appear. Several legumes show a high potential but further research is required in order to suggest the optimal legume cover crops for each case in terms of their prod...

Sorghum and pearl millet are two important dry land crops that provide grain and fodder. India is the largest pearl millet producer and second largest producer of sorghum in the world. The productivity of these crops has been low due to various reasons such as unavailability of quality inputs to the farmers, lack of access to improved technologies for crop production, unavailability of credit o...

We assess the comparative advantage and protection of China’s major agricultural crops using a modified Policy Analysis Matrix (PAM) and 1996 to 1998 data. We consider the following commodities: early indica rice, late indica rice, japonica rice, south wheat, north wheat, south corn, north corn, sorghum, soybean, rapeseed, cotton, tobacco, sugarcane, and a subset of fruits and vegetables. Consi...