-
21
Biological constraints to high yields on some rice farms in Nueva Ecija, Philippines [microform]
Được phát hành 1981Visual Material -
22
Biology of trichoqramma spp. and their effectiveness as biological control for the sugarcane stem borer, tetramoera schistaceana sn. [microform]
Được phát hành 1981Visual Material -
23
Inheritance of bacterial wilt (caused by Pseudomonas solanacearum EFS) resistance in tomato (Lycopersicon escukentum Mill.) [microform]
Được phát hành 1981Visual Material -
24
Factors associated with job involvement in community development projects of some community memebers in five barangays in Laguna [microform]
Được phát hành 1981Visual Material -
25
Productivity and returns to inputs of fishpan aquaculture in the Philippines [microform]
Được phát hành 1981Visual Material -
26
Shifts in weed and weed seed population under different multiple cropping patterns [microform]
Được phát hành 1981Visual Material -
27
-
28
-
29
Economic study of sugarcane production in Supanburi, Thailand [microform].
Được phát hành 1980Visual Material -
30
Nutrient composition and growth of pine-apple and coconut intercrops as influenced by nitrogen, phosphorus and potasium [microform].
Được phát hành 1980Visual Material