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THE IMPORTANCE OF LIGNOFOS AS AN ORGANIC-MINERAL FERTILIZER FOR THE QUALITY AND YIELD OF APPLES
Hakija Hadrović
; Institut za naučna istraživanja u poljoprivredi i veterinarstvu, Peć
Sažetak
The fist researches aimed to creation of the organic-mineral fertilizers, the lignofos being used as the raw material, are of the new date. These researches were first made in France, Italy, USA, Soviet Union, India and Germany 30 years ago, and in Yugoslavia Mining Institute and Institute for soil researches in Belgrade started the making of the humic fertilizers on the basis of lignit a couple years ago. The sample of lignofos made, containes 87% of mine lignit groung to 5 mm particles, 8% , superfosfate and 5% ammonia (25%); the total content of nitrogen in lignofos is 3,9% and the content of citrate soluble phosphonus (P₂O₅) 4,15%. More than one half of the total 21 bilions tons established reserves of lignit in Yugoslavia accurs in Kosovo. The orchard in which tests were made was planted in 1984 y. and the following varieties of apples were tested: Golden Delicious, Slavonska Srčika, Plodorodnaja Mičurinova, Patent and Pantoise. The growing shape in normal in pyramidic form. The orchard had in total 356 varieties each represented by 4 plants. The testes have been performed in 1967 and 1968 yeans. The lignofos was first treated to the plants in may of 1967, 30 kg of lignofos was placed in straps as wide as the crovns for each plant and ploughed in to the depth of 20 cm. The same fertilization was applied in 1968. In the course of vegetation from april to october the avarage temperature was 16,7 ᵒC and the total rainfall 408 mm. The lignofos of the light soils that enables the soil to render the successfull production of the crops.
Ključne riječi
Hrčak ID:
167632
URI
Datum izdavanja:
29.7.1971.
Posjeta: 616 *