As well as these ecological constraints, there may be social constraints which define farming systems, such as conflicts between pastoral and crop production; restrictive systems of land tenure; subsistence versus commercial production; labor-intensive versus mechanized approaches; and the operation of ...
This may explain in part why the majority of crops discussed in this volume originated in either tropical or subtropical ecozones with summer rains or in the tropical ecozone with year-round rains. The fundamental contribution of genomics to plant breeding is to provide information on the ...
An interesting variant of tropical and subtropical deserts are the so-called West Coast Desert areas found on the western coastal margins of the regions discussed above (such as in theSonoran DesertofNorth America, the Peru andAtacama desertsofSouth America, and theSahara[Moroccan part] andNamib ...
Sapote mamey is a tropical tree native from Mexico and Central America that shows potential as an alternative commercial crop for tropical and subtropical ... I.,Alia-Tejacal,and,... - 《Postharvest Biology & Technology》 被引量: 83发表: 2007年 ...
multiple crop maturities.We mapped abandoned croplands at the crop-growing season scale.Interferences of short-term fallow in identifying abandonment were eliminated.The accuracy of 79% confirmed the reliability of our approach.Parcel-based identification can present fragmented cropland abandonment more ...
1991. Crop improvement for tropical and subtropical Australia: designing plants for difficult climates. Field Crops Research 26, 113-39.Lawn R J, Imrie B C. Crop improvement for tropical and subtropical Australia: designing plants for difficult climates[J]. Field crops research, 1991,26(2):113...
Tropical and subtropical fruits edited by Chittaranjan Kole (Wild crop relatives : genomic and breeding resources / Chittaranjan Kole editor) Springer, c20... C Kole - Springer 被引量: 5发表: 2011年 Tropical and Subtropical Fruits Tropical and subtropical fruits edited by Chittaranjan Kole (Wild...
Lychee is a tropical to subtropical crop that originates in South-east Asia.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、3
and Jiang, J.: pH buffering capacity of acid soils from tropical and subtropical regions of China as influenced by incorporation of crop straw biochars, ... MTF Wong,MJ Webb,K Wittwer - 《Soil Use & Management》 被引量: 3发表: 2013年 SULPHUR RETENTION AND RELEASE AS INFLUENCED BY SOIL ...
as a consequence of rapid population growth and increased pressure on agricultural lands, has caused a serious decline in yields of crops traditionally cultivated in mixed-food crop fields. The yield gap is further exacerbated in the actual cultivating systems of the small-scale farms, which can ...