Mineralization of organic P in an Ultisol
Wahab, A.H¹; Lugo López, M.A; Scott, T.W
¹Organización de Estados Americanos, Instituto Interamericano de Cooperación para la Agricultura, Kingston. Jamaica
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 3 Jul, Pág. 195-204]

Pelleted maize plants as a forage extender for dairy heifers on improved pastures in Puerto Rico
St. Louis, D.G¹; Velez Santiago, J; Arroyo Aguilu, J.A; Mcdowell, R.E
¹South Carolina Agricultural Exp Station, Blackville, Carolina del Sur. Estados Unidos de América
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 3 Jul, Pág. 241-249]

Potential of stylosanthes guianensis as a forage crop in the humid mountain region of puerto rico
Velez Santiago, J¹; Sotomayor Ríos, A; Lugo López, M.A
¹Universidad de Puerto Rico, Est Experimental Agricola, Subest Corozal, Rio Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 3 Jul, Pág. 232-240]

Preliminary evaluation of ramie (Boehmeria nivea (L.) Gaudich) as a forage source for livestock feeding
Ramírez Torres, O.D¹; Arroyo Aguilu, J.A; Semidey Laracuente, N
¹Universidad de Puerto Rico, Estación Experimental, Rio Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 3 Jul, Pág. 274-281]

Response of eggplant, to various n, p, k levels and plant densities on an oxisol
Mangual Crespo, G^1
1Universidad de Puerto Rico, Est Experimental Agricola, Rio Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 3 Jul, Pág. 250-257]

Use of dairy cow culls for rearing dairy replacements for beef
Velez Santiago, J¹; McDowell, R.E; Arroyo Aguilu, J.A
¹Universidad de Puerto Rico, Estación Experimental Agrícola, Río Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 3 Jul, Pág. 282-294]

Variability in okra seed quality
Martin, F.W; Ruberte, R
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 3 Jul, Pág. 205-212]

An attempt to evaluate the effect of varying time intervals between liming and cropping on an oxisol
Badillo Feliciano, J¹; Lugo López, M.A
¹Universidad de Puerto Rico, Est Experimental Agricola, Rio Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 83-89]

A new species and complements to the descriptions of nine african or oriental Dicranocentrus (Collembola : Entomobryidae)
Mari-Mutt, J.A^1
1Universidad de Puerto Rico, Departamento de Biología, Mayagüez. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 160-170]

Effect of depth of water table on yields of two cultivars of sweet potatoes
Silva, S¹; Irizarry, H
¹United States Department of Agriculture, Agricultural Res Science And Education Adm, Rio Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 114-117]

Effect of harvest interval on yields of four sudan grass sorghum crosses with irrigation on the south coast of puerto rico
Caro-costas, R^1
1Puerto Rico Agricultural Exp Station, Rio Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 108-113]

Effect of pH on pasting properties of habanero (Dioscorea rotundata) yam starch
Rodríguez Sosa, E.J¹; Parsi Ros, O; González, M.A
¹Universidad de Puerto Rico, Estación Experimental Agrícola, Rio Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 154-159]

Effect of three harvest intervals on the yield and protein content of ten brachiarias
Sotomayor Ríos, A¹; Rodríguez García, J; Vélez Santiago, J
¹United States Department of Agriculture, Mayaguez Institute of Tropical Agriculture, Mayagüez. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 147-153]

Effect of three harvest intervals on yield and nutritive value of seven napiergrass cultivars
Velez Santiago, J¹; Arroyo Aguilu, J.A
¹Universidad de Puerto Rico, Est Experimental Agricola, Dep Animal Industry, Rio Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 129-137]

Fertilizer for sweet pepper under drip irrigation in an oxisol in northwestern puerto rico
Keng, J.C.W¹; Scott, T.W; Lugo López, M.A
¹Land Resource Res Inst, Ottawa, Ontario. Canadá
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 123-128]

New genus, a new species, and complements to the descriptions of seven neotropical dicranocentrus (collembola : entomobryidae : orchesellinae)
Mari-mutt, J.A^1
1Universidad de Puerto Rico, Dep Biologia, Mayagüez. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 90-107]

Performance of f1 hybrids from crosses of three sudangrasses and six forage sorghums with a rhodesian sudangrass
Sotomayor Ríos, A¹; Santiago, A
¹U. S. Agricultural Res Science And Education Adm, Mayaguez Inst Tropical Agriculture, Mayagüez. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 142-146]

Preliminary evaluation of a snap bean harvester in southern puerto rico
Mangual Crespo, G¹; González, A.L
¹Universidad de Puerto Rico, Est Experimental Agricola, Rio Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 138-141]

Tillage and yields of horn-type maricongo plantatin on an ultisol
Irizarry, H; Rodriguez, J.A
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 118-122]

Variable response of food crops to banded and broadcast residual fertilizer P on an ultisol
Valle, R. del¹; Scott, T.W; Lugo López, M.A
¹Universidad de Puerto Rico, Estación Experimental Agrícola, Rio Piedras, San Juan. Puerto Rico
[The journal of agriculture of the University of Puerto Rico, Puerto Rico, 1981 Vol. 65 Núm. 2 Abr, Pág. 171-189]