Legumes: their potential role in agricultural production
1987
Power, J.F.
The increased use of N fertilizers in the USA in 1959-79 was paralleled by a decrease in legume seed production. N contribution to the soil and other crops in rotations by legume N fixation is discussed in the light of the increasing economic and environmental cost of N fertilizers. The disadvantages of using legumes are also considered.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل National Agricultural Library
